The Distribution of Paleozoic Corals

Originally published in the Mid-America Paleontological Society Digest, March 1985. This was updated in 2011.

By Alan Goldstein

   Paleozoic corals are widely distributed throughout the world. They can be found in sedimentary rock layers where environmental conditions were favorable. Based on evidence, most corals thrived in warm, tropical marine conditions comparable to modern scleractinian corals (of which they were not related).

   Like many forms of life in the ocean, some genera had world-wide (cosmopolitan) distribution, while others lived within a very restrictive environment. Within a small geographic area, some Paleozoic corals served as index fossils (i.e. for correlation of specific strata). However, over large areas they have limited value as compared to other phyla. Corals have been used to recreate landmass distribution and the location of channels or seaways connecting otherwise separated seas during the Paleozoic (see Oliver, 1976).

   The Devonian Period was the ‘age of corals’ because the continents were located within +/- 30 degrees of the equator. Large areas of the present continents were submerged under shallow seas (comparable to Philippines / New Guinea area today) – ideal for the development of coral ecosystems. True reefs where corals grew on top of one another (like a barrier reef) were few and far between. Most formed patch reefs – bioherms or biostromes – with ecosystems comparable to the shallow waters of Florida Bay.

   In North America, major Devonian coral deposits can be found in Nevada (Lower Devonian), Indiana, Kentucky, Ohio, New York and Ontario (Middle Devonian) and Iowa and Alberta (Upper Devonian). There are other states with Devonian corals (Missouri, Tennessee, etc.), but exposures are much more limited.

   Environmental conditions for maximum coral diversity required shallow, clear seas where sunlight could penetrate. An abundance of plankton (a primary food source) was also essential. Peak species diversity is associated with limestone deposits, indicating minimal sources of terrestrial sediments (like shale-forming clays). Species diversity and maximum physical size drops off significantly in Devonian shale deposits.

   The richest coral deposit of the Devonian Period in North America is the “coral zone” of the Jeffersonville Limestone found at the Falls of the Ohio and its neighborhood.  Here corals are found atop corals, some in growth position, but most are preserved in a random, storm-tossed, orientation. Indiana and Kentucky (which share most species) have over 100 genera. This is more than the second and third on the list (Nevada and Ontario) combined!

   Corals are typically identified by slice them and studying their internal structure. Many corals were named in the 19th century by external characteristics. While many corals have been studied and re-named, not every old name is invalid. Sometimes the genus identification is possible, even when the species is not. It takes a number of characteristics to identify any species of any type of organism, because of variability of traits. What holds true today is also true in the fossil record. 

   Among those amateurs fascinated in paleontology, corals always rank near the bottom of the list. While it is true that they are more difficult than brachiopods and trilobites, they offer a tremendous variation of growth habits, symmetry, and overall beauty. For fossil collectors, this is lack of interest is a mixed blessing. Really nice coral specimens are inexpensive compared to equally well-preserved trilobites or crinoids. However, corals are not widely available for collectors and there is not a lot of diversity in the paleontology market. On occasion, one might find an uncommon coral priced less than a common trilobite!

   Corals have more distinct external features than bryozoans and sponges. The process of silicification (replacement of calcite by quartz) may bring our external features in exquisite detail. This increases their beauty because corals have great three-dimensional structure, but the process that exposes the fine structure of the coral exterior hollows out the interior, destroying critical diagnostic microstructure.

   Growth bands on Devonian corals indicate a year was roughly 410 days (Wells, 1944). This matches the prediction that the Earth’s orbit is slowly decreasing its distance from the sun. The same gravitation force is also pulling the Moon further and further from the Earth. The Moon – and its tidal influence – was stronger 390 million years ago than today.

   The following list of coral genera was pulled from the Treatise on Invertebrate Paleontology (volume F, Coelenterata, Supplement 1, Rugosa and Tabulata, (Hill, 1981). It is not a perfect list, and additional scientific work has added and possibly deleted the names on the list. In addition, typos can creep in and spell check is of no help with Latin names. Additions and corrections by readers are welcome.

Notes regarding the list

    A question mark before the name (?Amplexiphyllum), the type species has not been studied for the genus. Those who have studied subsequent species assign to the genus cannot absolutely vouch for its accuracy.

   A question mark after the name (Strombodes?) indicates that the genus may occur, but it is not known for certain.

A question mark in the age, indicates the genus may not occur and it may be something else.

  A single asterisk (*) before the name indicates that the state listed is the only known North American occurrence of the genus.

  Two asterisks (**) before the name indicates that the state listed is the only known occurrence of the genus in the world.

Abbreviations

l = lower, m = middle, u = upper

Ord = Ordovician, Sil = Silurian, Dev = Devonian, Mis = Mississippian, Pen = Pennsylvanian, Per = Permian

Alabama

Barylasma                                         l-m Mis

Baryphyllum                                      m Mis

Pseudozaphrentoides                     Mis

Alaska

Acrocyathus                                      Mis-Pen

*Ageolites                                          u Ord

Chaetetipora                                     ?u Ord

Dipyphyllum                                      Mis-Pen

*Eostrotion                                         m Mis

Lithostrotion                                      u Mis

*Martinophyllum                               m Dev

Pachyfavosites(?)                            u Ord – u Sil

Parastriatopora                                 Sil

*Plasmophyllum                               ?u Sil

Rhabdotetradium                             u Ord

**Sarcinula                                        u Ord

Sciophyllum                                      u Mis

*Sinopora                                          l Per

Siphonodendron                              m Mis

Stelliporella                                       Sil

Striatopora                                         ?u Sil

Tabulophyllum                                 u Dev

Thecostegites                                   m or u Dev

Arkansas

Barytichisma                                     l Pen

Caninostrotian                                  u Mis

Kindkaidia                                         u Mis

Konickophyllum                               Mis

Lophophyllidium                              Pen – Per

Parastriatoporella                             l Pen

California

Aulocystis                                          m Dev

Bayhaium                                          l Per

Bighornia                                           u Ord

Dalmanophyllum                              l Sil

Dohmophyllum                                 ?u Sil

Ekvasophyllum(?)                            m Mis

**Klamathastraea                             ?u Sil

Paleocyclus                                      l Sil

Paleophyllum                                   um – u Ord

*Petrozium                                        ?lm Sil

Pycnostylus                                       Sil

Rhegmaphyllum                              lm Sil

*Ryderophyllum                               Sil

**Shastaphyllum                              u Sil or l Dev

Vesiculophyllum                              Mis

**Wintunastraea                               u Sil or l Dev

Colorado

Bighornia                                           u Ord

Calapoecia                                        u Ord

Homalophyllites                               l Mis

Stereostylus                                      Pen

Idaho

Amplexus                                          Mis

Bighornia                                           u Ord

Dorlodotia                                          u Mis

Duncanopora                                    Pen

Faberophyllum (?)                            m Mis

Pleurosiphonella                              Mis

Sciophyllum                                      u Mis  

Illinois

Acrocyathus                                      Mis

Amplexizaphrentis                           u Mis

Amplexus(?)                                     Mis

Asthenophyllum                               m Sil

?Auloporella                                     ul – lm Sil

Aulozoa                                             m Sil

Beaumontia                                      Mis

Caninostrotian                                  u Mis

Comanaphyllum                              m Dev

Cleistopora                                        l Mis

Cumminsia(?)                                   u Mis

Favosites                                           m Sil, m Dev

**Grabauphyllum                              m Sil

Kindkaidia                                         uu Mis

Lophophyllidium                              Pen

Microcyathus                                     m Dev

Microcyclus                                       m Dev

Palaeacis                                          Mis

Vesiculophyllum                              l Mis

Indiana and Kentucky

Note: Indiana only (I), Kentucky only (K)

Acinophyllum                                     l-m Dev

Acrocyathus                                      Mis

Acrophyllum                                      l-m Dev

Aemuliophyllum                               l Dev

Alveolites                                           m Sil, l-m Dev

Amplexizaphrentis                           u Mis

?Amplexiphyllum                             m Dev

Amplexus                                          Mis

Amsdenoides                                   u Sil

Anisophyllum                                     u Sil

Antholites                                          m Dev

Arachnophyllum                               m Sil

Asthenophyllum                               m Sil

Astrocerium                                       m Sil

Aulacophyllum                                 m Dev

Aulocystis                                          l-m Dev

Aulopora                                            m Sil, m Dev

Barylasma                                         l-m Mis

Baryphyllum                                      m Mis

Bethanyphyllum                               m Dev

?Blothrophyllum                               l-m Dev

Bordenia                                            m Dev (I),   l-m Mis

**Bractea                                           l-m Dev

Breviphrentis                                     m Dev

Bucanophyllum                                m Dev

Calapoecia                                        u Ord

Cayugaea                                          m Dev

Chonostegites                                  m Dev

**Cladionophyllum                           m Dev

Cladochonus                                     m Mis

Cladopora                                         m Dev

Clinophyllum                        (I)         l-m Mis

Coenites                                            m-u Sil

**Coleophyllum                                l-m Dev

**Cladiophyllum                               l-m Dev

**Compressiphyllum                       l Dev

Comanophyllum?                            m Dev

Craterophyllum                                 m Sil, m Dev

Cumminsia                                       u Mis

Cyathocylindrium                             l-m Dev

Cylindrophyllum”                            m Dev (not a valid genus according to W. A. Oliver)

Cystelasma                                       m Mis

Cystihalysites                                   m Sil

Cystiphylloides                                 m Dev

Cystiphyllum                                     m Sil

Dalmanophyllum                              m Sil

**Diorychropora                                m Sil

?Diplochone                                     m Dev

Disphyllum                                        m Dev

Dokophyllum                                    m Sil

Duncanella                                        m Sil

Edaphophyllum                                m Dev

Egosiella                               (K)       m Sil

Enallophrentis                                  m Dev

Entelophyllum                                  m Sil

Eridophyllum                                     m Dev

Favistina                                            u Ord

Foerstephyllum                                u Ord

Favosites                                           m Sil, l-m Dev

Favosites (Emmonsia)                    l-m Dev (listed as genus in Treatise)

Grewingkia                                        u Ord

Hadrophyllum                       (I)         m Dev

Hallia                                                  m Dev

Halysites                                            m Sil

Hapsiphyllum                                   m Mis

Heliolites                                           m Sil

Heliophyllum                                     m Dev

Heterophrentis”                               m Dev (not a valid genus according to W. A. Oliver)

Homalophyllites                               l-m Mis

**Homalophyllum                             l Dev

Iowaphyllum                                      m Dev

Kindkaidia                                         uu Mis

**Kionelasma                                    l Dev

Kodonophyllum                                m Sil

Lamprophyllum                                m Sil   (=Plasmophyllum?)

Lecfedites                                          l Dev

Michelinia                                          l-m Dev?, m Mis

?Microcyathus                      (I)         Mis

Odontophyllum                                 m Dev

Palaeacis                                          Mis

Palastraea                                         u Mis

Palealveolites                       (K)       m Ord

Paratetradium                                   m-u Ord

**?Phymatophyllum                         m Dev (may be Bethanyphyllum)

Planalveolites(?)                              m Sil

Plasmopora                                      m Sil

Platyaxum                                         l-m Dev

Pleurodictyum                                  l-m Dev

Pleurodictyum (Granulidictyum)    m Dev (listed as genus in Treatise)

Pleurodictyum (Pachyprocteria)    m Dev (listed as subgenus of Procteria in Treatise)

Pleurodictyum (Procteria)               m Dev (listed as genus in Treatise)

Prismatophyllum                              l-m Dev

Propora                                              m Sil

Protarea                                             u Ord

Protoheliolites                                   u Ord

**Protopora                                        m Miss

Quepora                                             m Sil

Rhabdocyclus                                   m Sil

Rhabodotetradium                           m Ord

Rhizophylloides                   (K)       u Sil

Rhizophyllum                                   m Sil

Romingeria                                       m Sil, m Dev

Saffordophyllum                               m-u Ord

**Scenophyllum                               l-m Dev

Schlotheimophyllum                        m Sil

Schoenophyllum                              m Miss

Siphonophrentis                               m Dev

?Skoliophyllum                                m Dev

Stauromatidium                                l-m Dev

Stereolasma                                     m Dev

Streptolasma?                                  u Ord, m Sil

Striatopora                                         m Sil, m Dev

Strombodes?                                    M Sil

Syringopora                                      l-m Dev

Syringoporella                      (I)         m Miss?

Tabulophyllum                                 m Dev

Tetradium                                          m-u Ord

Thamnopora                                     m Dev

Thamnopytchia                                m Dev

Thecia                                                m Sil

**Triplophyllum                                 m Dev

Triplophyllites                                   m Mis

Trochoplasma                                  l-m Mis

Tryplasma                                         m Sil

Zaphrentis                                         l Sil?, m Dev

Iowa

Acanthohalysites                              l – u Sil

Arachnophyllum                               l – m Sil

Aulocaulis                                         u Dev

Bighornia                                           u Ord

Charactophyllum                              u Dev

Cleistopora                                        l Mis

Crenulites                                          u Ord

**Dipterophyllum                              l Mis

Disphyllum                                        u Dev

Goniophyllum                                   l Sil

Hexagonaria                                     u Dev

Homalophyllites                               l Miss

Iowaphyllum                                      u Dev

Kionophyllum                                   Pen

Mastopora                                         u Dev

Pachyphyllum                                   u Dev

Plexituba                                           u Dev

Pterorhiza                                          u Dev

?Smithiphyllum                                u Dev

Stereosylus                                       Pen

Tabulophyllum                                 u Dev

Vesiculophyllum                              Mis

Kansas

**Axolithophyllum                            Pen

Dibunophyllum                                 Pen

**Geyerophyllum                              Pen

Herischiella                                       l Per

Kionophyllum                                   Pen

Lophoamplexus                               Pen – l Per

Lophophyllidium                               Pen – Per

Neokonickophyllum                         Pen

Sestrophyllum                                  Pen

*Sochkineophyllum                         l Per

Stereosylus                                       Pen

Sutgerlandia                                     Mis

Maine

Amplexiphyllum                               l Dev

Arcturia                                              Sil

Astrocerium                                       Sil

Briantelasma                                    Sil, l Dev

Cystihalysites                                   Sil

Entelophyllum                                  Sil

Holmophyllum                                  Sil

Labyrinthites                                     m or u Sil

*Lyrielasma                                       l Dev

Kodonophyllum                                Sil

Phaulactis                                         Sil

Propora                                              Sil

Ptychophyllum                                  Sil

Spongeophylliodes                          Sil

Streptelasma?                                  Sil

Tryplasma                                         Sil

Xystriphyllum                                     u Sil

Zaphrentis                                         l Dev

Maryland

Cryptolichenaria                               l Ord

*Embolophyllum                              l Dev

Rhabdotetradium                             m Ord

Michigan

Antholites                                          m Dev

Arachnophyllum                               l-m Sil

Argustastra                                        m Dev

Asterobillingsia                                 l-m Dev

Australophyllum                               l-m Dev

Aulacophyllum                                 m Dev

Aulocystis                                          l-m Dev

Bethanyphyllum                               m Dev

**Camptolithus                                 m Sil

Comanophyllum                              m Dev

Cystriphorolites                                m Sil

**?Dendrofavosites                          m Dev

Despasophyllum                              m Dev

Disphyllum                                        m Dev

Egosiella                                           m Sil

Favosites                                           m Sil, l-m Dev

Favosites (Emmonsia)                    l-m Dev (listed as genus in Treatise)

Eridophyllum                                     m Dev

Hallia                                                  m Dev

**Heterolasma                                  l or m Sil

Hexismia                                           Sil

Iowaphyllum                                      m Dev

Lambelasma                                     um Ord

?Lambeophyllum                             m Ord

Michelinia                                          l-m Dev

Multisolenia                                       Sil

**Pachyphragma                              m Dev

Paleocyclus                                      m Dev

?Planalveolitella                              m Dev

Platyaxum                                         m Dev

Pleurodictyum                                  l-m Dev

Pleurodictyum (Granulidictyum)    m Dev (listed as genus in Treatise)

Pleurodictyum (Procteria)               m Dev (listed as genus in Treatise)

Prismatophyllum                              m Dev

Protoheliolites                                   u Ord

Ptychophyllum                                  m Dev

Pycnostylus                                       m Sil

Romingeria                                       m Dev

?Smithiphyllum                                m Dev

Streptelasma                                     m Ord

Tabulophyllum                                 m Dev

Thamnopytchia                                m Dev

Tortophyllum                                     m Dev

Minnesota

Bighornia                                           u Ord

Crenulites                                          u Ord

**Lichenaria                                      m Ord

Mississippi

Vesiculophyllum                              Mis

Missouri

**Bainbridgia                                     u Sil

Beaumontia                                      Mis

Caninia                                              Mis

Cleistopora                                        l Mis
Clinophyllum                                    l Mis

Comanophyllum                              m Dev

**Conopoterium                                uu Dev or ll Mis

Favosites                                           m Dev

Heliophyllum                                     m Dev

Homalophyllites                               l-m Mis

Lophoamplexus                               Pen

*Meniscophyllum                             Mis

Metriophyllum                                   Mis?

?Microcyathus                                  Mis

Microcyclus                                       m Dev

Neozaphrentis                                  Mis

*Pseudocryptophyllum                    l Miss

Sterostylus                                        Pen

Sutherlandia                                     Mis

?Tabellaephyllum                            Mis

Tabulophyllum                                 m Dev

Montana

Amplexocarina                                 Mis

Amplexus                                          Mis

Ankhelasma                                      m Mis

Aulostylus                                          l Mis

*Bradyphyllum                                  l Pen?

**Cambrophyllum                            u Cam (predecessor to tabulate?)

Cambrotrypa                                     m Cam (coral?)

Caninia                                              Mis

*Enygmophyllum                             Mis

**Fasciculiamplexus                         l Pen

Homalophyllites                               l Mis

**Longiclara                                      u Mis

Pseudozaphrentoides                     Mis

Vesiculophyllum                              Mis

?Zaphrentiphyllum                           m Mis

Nevada

Aphroidophyllum                              l Dev

Australophyllum                               l-m? Dev

Bayhaium                                          l Per

Bighornia                                           u Ord

Breviphrentis                                     l Dev

**Breviphyllum                                  l Dev

**Carlinastraea                                 l Dev

Cyathophylloides                             u Sil

*Cyathophyllum                                l Dev

Denayphyllum                                  u Sil

Disphyllum                                        u Dev

Durhaminia                                       Pen – l Per

**Eastonoides                                   l Per

**Eoheritschoides                            l Per

Exilifrons                                            l –m Per

?Haptolasma                                     u Mis

*Heintzella                                         Pen

Heritschoides                                    l Per

**Kleopatrina                                     l Pen

**Kobeha                                           l Dev

Lekanophyllum(?)                            m Dev

*Mucophyllum                                   l Dev

Multithecopora                                  l Pen

*Moravophyllum                               m Dev

**Neophyma                                     l Dev

**Neosyringopora                             l Per

Nevadaphyllum                                l Dev

Orionastraea                                     l Per

**Orthocyathus                                  m Dev

**Paleogryphophyllum                    l Dev

*Papiliophyllum                                l Dev

Peripaedium                                     m Dev

**Prohexagonaria                             m or u Sil

**Porfirierella                                     l Per

Radiastraea                                      l – lm Dev

Rhabdocyclus                                   Pen

Salairophyllum                                 l Dev

?Smithiphyllum                                l Dev

Sociophyllum                                     m Dev

Stereostylus                                      Pen

Stylopleura                                        l Dev

Tabulophyllum                                 m Dev

Taimyrophyllum                               m Dev

**?Tonkinaria                                    l Dev

**Toquimaphyllum                           m Dev

Utaratuia                                            m Dev

Vesiculophyllum                              Mis

Zonodiagonophyllum                      m Dev

New Mexico

Acrocyathus                                      Mis

Amplexizaphrentis                           u Mis

Calapoecia                                        u Ord

Caninia                                              Mis

Favistina                                            u Ord

Hapsiphyllum(?)                               m Mis

Homalophyllites                               l Mis

Lophophyllidium                              Pen – Per

Manipora                                           m-u Ord

Paleofavosites                                  u Ord – u Sil

Paleophyllum                                   um-u Ord

Protochiscolithus                              u Ord

New York

Acinophyllum                                     l-m Dev

Acrophyllum                                      l-m Dev

Aemuliophyllum                               l Dev

Alveolites                                           l-m Dev

?Amplexiphyllum                             m Dev

Ankisophyllum                                  l Dev

Antholites                                          m Dev

Asterobillingsia                                 l-m Dev

Astrocerium                                       m Sil

Aulacophyllum                                 m Dev

Aulocaulis                                         u Dev

Aulocystis                                          l-m Dev

Bethanyphyllum                               m Dev

Billingsaria                                        m Ord

Briantelasma                                    l Dev

?Cannapora                                      l Sil

Charactophyllum                              u Dev

Cladopora                                         Sil, m Dev

Cladochonus                                     m-u Dev

Cyathocylindrium                             l-m Dev

Cylindrophyllum                               l-m Dev

Cystiphylloides                                 m Dev

*Diplophyllum                                   m Dev

Disphyllum                                        m Dev

Edaphophyllum                                m Dev

Elasmophyllum                                m Dev

Enterolasma                                     u Sil – l Dev

Eridophyllum                                     m Dev

Favosites                                           m Sil, l-m Dev

Favosites (Emmonsia)                    l-m Dev (listed as genus in Treatise)

Foerstephyllum                                u Ord

Grewgiphyllum                                 m Dev

Hallia                                                  m Dev

Heliophyllum                                     m Dev

?Lambeophyllum                             m Ord

Lamotia                                              m Ord

Lecfedites                                          l Dev

*Lopholasma                                     m Dev

Lyopora                                              m Ord

Macgeea                                            u Dev

Metriophyllum                                   m-u Dev

Pachyphyllum                                   u Dev

Pleurodictyum                                  l-m Dev

**Polydilasma                                   m Sil

Phytopsis                                           m-u Ord

Platyaxum                                         m Dev

Prismatophyllum                              m Dev

**Pseudoblothrophyllum                 l Dev

Rhizophyllum                                   l Sil – l Dev

Romingeria                                       m Dev

Siphonophrentis                               m Dev

Stereolasma                                     m dev

**?Stewartophyllum                         m Dev

Streptolasma                                    m Ord

Striatopora                                         m Sil, m Dev

Synaptophyllum                               m Dev

Thamnoptychia                                m Dev

Xystriphyllum(?)                               l-m Dev

Ohio

Acervularia(?)                                   m-u Sil

Acinophyllum                                     l-m Dev

Aemuliophyllum                               l Dev

Alveolites                                           l-m Dev

Aulacophyllum                                 m Dev

Aulocystis                                          l-m Dev

Aulopora                                            m Dev

Bethanyphyllum                               m Dev

Breviphrentis                                     m Dev

Bucanophyllum                                m Dev

Calostylis                                           Sil

Cladopora                                         u Sil, m Dev

Cyathocylindrium(?)                        l-m Dev

Cylindrophyllum                               l-m Dev

Cystiphylloides                                 m Dev

Enallophrentis                                  m Dev

Eridophyllum                                     m Dev

Favosites                                           m Sil, l-m Dev

Favosites (Emmonsia)                    l-m Dev (listed as genus in Treatise)

Favostina                                           u Ord

Grewgiphyllum                                 m Dev

Grewingkia                                        u Ord

Hadrophyllum                                   l-m Dev

Hallia                                                  m Dev

Heliophyllum                                     m Dev

*Holophragma                                  l-m Sil

Lophoamplexus                               Pen

Lophophyllidium                              Pen

Nyctopora                                          u Ord

Odontophyllum                                 m Dev

Platyaxum                                         m Dev

?Planalveolites                                 m Dev

Pleurodictyum                                  l-m Dev

Pleurodictyum (Procteria)               m Dev (listed as genus in Treatise)

Prismatophyllum                              m Dev

Protarea                                             u Ord

Protoheliolites                                   u Ord

Romingeria                                       m Dev

Saffordophyllum                               u Ord

Siphonophrentis                               m Dev

?Skoliophyllum                                m Dev

Synaptophyllum                               m Dev

Syringopora                                      m Dev

Thamnopora                                     m Dev

Thamnoptychia                                m Dev

Zaphrentis                                         m Dev

Oklahoma

Acaciapora                                        l Pen

Amplexocarina                                 Pen

Anisophyllum                                     u Sil

**Capnophyllum                               u Sil

Dibunophyllum                                 Pen?

Egosiella                                           u Sil

**Empodesma                                  l Pen

**Gymnophyllum                              m Pen

Leonardophyllum                             l Pen

Lophoamplexus                               Pen – l Per

Lophophyllidium                              l Pen

Neokonickophyllum                         Pen

**Oliveria                                           u Sil

Palaeacis                                          Mis

Parastriatoporella                             l Pen

**Petalaxis                                         l Pen

*Petraia                                              u Sil

Phytopsis                                           m-u Ord

Rhabdotetradium                             m Ord

Rhizophyllum                                   l Sil – l Dev

Sestrophyllum                                  Pen

Spongophylloides                            m-u Sil

**Stereocorypha                               l Pen

Stereostylus                                      Pen

Sutherlandia                                     Mis

Sutherlandinia                                  u Mis

Oregon

Dibunophyllum                                 Pen?

Heritschoides                                    l Per

Lithostrotian(?)                                  u Mis

Spongophylloides                            m-u Sil

Pennsylvania

Paratetradium                                   m-u Ord

Tennessee

Amsdenoides                                   u Sil

Anisophyllum                                     u Sil

Astrocerium                                       m Sil

Barylasma                                         l-m Mis

Baryphyllum                                      m Mis

Billingsaria                                        m Ord

Coenites                                            u Sil

Craterophyllum                                 u Sil

Cystihalysites                                   u Sil

Ditoecholasma                                 u Sil

Egosiella                                           u Sil

Favosites                                           u Sil – l Dev

**Laccophyllum                                m Sil

Palastraea                                         u Mis

Paleoalveolites                                 m Ord?

Paratetradium                                   m-u Ord

Platyaxum                                         u Sil

*Pseudoplasmapora                        u Sil

Pseudozaphrentis                            Mis

Rhabdotetradium                             m Ord

Rhizophyllum                                   l Sil – l Dev

Saffordophyllum                               m-u Ord

Stelliporella                                       Sil

Stortophyllum                                   u Sil

Thecia                                                l-u Sil

Texas

Amplexocarina                                 Pen

Barytichisma                                     l Pen

Bighornia                                           u Ord

Calapoecia                                        u Ord

Catenopora(?)                                  u Ord

**Coccoseris                                     u Ord

Crenulites                                          u Ord

Cryptolichenaria                               l Ord

Cumminsia                                       l pen

Dibunophyllum                                 Penn?

Durhamina                                        Pen – l Per

**Empodesma                                  l Pen

Konickophyllum                               Pen

Leonardophyllum                             u Pen – l Per

Lophophyllidium                              l Pen

Lophotichium                                    l Per

Manipora                                           m-u Ord

?McLeodea                                       u Ord

Multithecopora                                  Pen

Neokonickophyllum                         Pen

Paleofavosites                                  u Ord – u Sil

Paleophyllum                                   um – u Ord

Parastriatoporella                             l Pen

Pragnellia(?)                                     u Ord

Protrochiscolithus                            u Ord

Saffordophyllum                               m-u Ord

Sestrophyllum                                  Pen

**Stereocorypha                               l Pen

Stereostylus                                      Pen

**Thamnoporella                              m Pen

Timorophyllum                                 u Per

**Trabeculites                                   u Ord

*Verbeekiella                                    Per

**Yabeiphyllum                                Pen – l Per

Utah

Amplexus                                          Mis

Ankhelasma                                      m Mis

Barytichisma                                     l Pen

Bighornia                                           u Ord

*Circophyllum                                   Sil?

Cystihalysites                                   Sil

Duncanopora                                    Pen

Ekvasophyllum                                 m Mis

Faberophyllum                                 m Mis

?Haplolasma                                     u Mis

Paleocyclus                                      l Sil

Rhabdocyclus                                   l Sil

Turbophyllum                                   m Miss

Vermont

Lamottia                                             m Ord

Virginia

Acinophyllum                                     m Dev

Pleurosiphonella                              Mis

Pseudozaphrentis                            Mis

Rhabdotetradium                             m Ord

Washington

Hexagonaria                                     u Dev

Hexaphylia                                        u Mis – l Per

*Peneckiella                                      m Dev

Phillipsastraea                                  m Dev

Synaptophyllum                               m Dev

Trapezophyllum                               m Dev

West Virginia

Acrocyathus                                      m Mis

Hadrophyllum                                   m Dev

Wisconsin

Acanthohalysites                              l-u Sil

Coenites                                            m-u Sil

Dalmanophyllum                              m Sil

Favistina                                            u Ord

Lamelasma                                       um Ord

?Lambeophyllum                             m Ord

Microplasma                                     l Sil

?Planalveolitella                              m Dev

**Syringocolumna                            m Sil

Wyoming

Amplexus                                          Mis

Bighornia                                           u Ord

Calapoecia                                        u Ord

Duncanopora                                    Pen