Fairmount community, Fairmount Fm., Cincinnati Arch, Cincinnati region (Ordovician of the United States)

Where: Ohio (39.0° N, 84.0° W: paleocoordinates 26.6° S, 60.0° W)

• basin-level geographic resolution

When: Fairmount Member (Fairview Formation), Maysvillian (450.2 - 449.6 Ma)

• "lower Maysvillian"

• member-level stratigraphic resolution

Environment/lithology: deep subtidal ramp; lithified, shelly/skeletal packstone and mudstone

• "inner BA3 (S. Holland, pers. comm.)" Additional Geographic, Stratigraphic, and Geologic Information added by S.M. Holland, 23 September 1999, as well as the complete species-level lists of Dalve, 1948.
• interbedded mudstone and limestone in roughly equal proportions. mudstones thin-bedded. limestones consist of thin to medium bedded calcisiltites, skeletal packstones, and skeletal grainstones. grainstones commonly cross-bedded and megarippled. calcisiltites commonly with tool marks, trace fossils, planar lamination, and hummocky cross-lamination.

Size class: macrofossils

Preservation: original calcite, replaced with phosphate

Primary reference: E. Dalve. 1948. The fossil fauna of the Ordovician in the Cincinnati Region. University Museum, Department of Geology and Geography, University of Cincinnati 1-56 [S. Holland/S. Holland/J. Ju]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 388: authorized by Jack Sepkoski, entered by Mike Sommers on 20.11.1998, edited by Pete Wagner and Austin Hendy

Creative Commons license: CC BY (attribution)

Taxonomic list

• "Dalve 1948"
Show authors, comments, and common names
unclassified
  -
Pianodesma sp., Physotomya sp., Cylindrocoelia sp., Faberia sp.
Demospongiae
 Streptosclerophorida - Hindiidae
Hindia sp.
Hindia sp. Duncan 1879 demosponge
 Sigmatosclerophorida - Dystactospongiidae
Dystactospongia sp.
Dystactospongia sp. Miller 1882 demosponge
Stromatoporoidea
 Labechiida - Lophiostromatidae
Dermatostroma sp.
Dermatostroma sp. Parks 1910 stromatoporoid sponge
Scyphozoa
 Conulariida - Conulariidae
Conularia sp.
Conularia sp. jellyfish
Deuteropoda
  -
Ostracoda indet.
Ostracoda indet. Latreille 1802 ostracod
Trilobita
 Phacopida - Cheiruridae
Ceraurus sp.
Ceraurus sp. Green 1832 trilobite
 Phacopida - Pterygometopidae
Achatella sp.
Achatella sp. Delo 1935 trilobite
2 species
 Phacopida - Calymenidae
Flexicalymene sp.
Flexicalymene sp. Shirley 1936 trilobite
 Odontopleurida - Odontopleuridae
Ceratocephala sp.
Ceratocephala sp. Warder 1838 trilobite
2 species
 Trinucleida - Trinucleidae
Cryptolithus sp.
Cryptolithus sp. Green 1832 trilobite
 Asaphida - Asaphidae
Isotelus sp.
Isotelus sp. Dekay 1824 trilobite
Lophophorata
 Tentaculitida - Cornulitidae
Cornulites sp.
Cornulites sp. Schlotheim 1820
4 species
Lingulata
 Siphonotretida - Siphonotretidae
? Schizambon sp.
? Schizambon sp. Walcott 1884
originally entered as "? Schizambon sp."
 Lingulida - Lingulidae
Lingula sp.
Lingula sp. Bruguiére 1797
 Lingulida - Trematidae
Trematis sp., Schizocrania sp.
Trematis sp. Sharpe 1848
4 species
Schizocrania sp. Hall and Whitfield 1875
Craniata
 Craniida - Craniidae
Petrocrania sp.
Petrocrania sp. Raymond 1910
2 species
 Craniopsida - Craniopsidae
"Pholidops sp." = Craniops1
"Pholidops sp." = Craniops1 Hall 1859
originally entered as "Pholidops sp."
Strophomenata
 Strophomenida - Rafinesquinidae
Rafinesquina sp.
Rafinesquina sp. Hall and Clarke 1892
2 species
 Strophomenida - Strophomenidae
Strophomena sp.
Strophomena sp. Rafinesque and De Blainville 1824
2 species
 Strophomenida - Furcitellidae
Trigrammaria sp.
Trigrammaria sp. Wilson 1945
Rhynchonellata
 Rhynchonellida - Orthorhynchulidae
Orthorhynchula sp.
Orthorhynchula sp. Hall and Clarke 1893
originally entered as "Orthorhynchula sp."
 Atrypida - Anazygidae
Zygospira sp.
Zygospira sp. Hall 1862
2 species
 Orthida - Platystrophiidae
Platystrophia sp.
Platystrophia sp. King 1850
6 species
 Orthida - Plectorthidae
Hebertella sp., Plectorthis sp.
Hebertella sp. Hall and Clarke 1892
2 species
Plectorthis sp. Hall and Clarke 1892
6 species
 Orthida - Dalmanellidae
Onniella sp.
Onniella sp. Bancroft 1928
Stenolaemata
  - Phylloporinidae
Chasmatopora sp.
Chasmatopora sp. Eichwald 1860
 Cryptostomata - Rhinidictyonidae
Dicranopora sp.
Dicranopora sp.
2 species
 Cryptostomata - Escharoporidae
Escharopora sp.
Escharopora sp. Hall 1847
4 species
 Cystoporata - Ceramoporidae
Ceramoporella sp., Spatiopora sp., Crepipora sp.
Ceramoporella sp. Ulrich 1882
4 species
Spatiopora sp. Ulrich 1882
Crepipora sp. Ulrich 1882
2 species
 Cystoporata - Constellariidae
Constellaria sp.
Constellaria sp. Dana 1846
 Trepostomida - Atactotoechidae
Cyphotrypa sp.
Cyphotrypa sp. Ulrich and Bassler 1904
 Trepostomida - Monticuliporidae
Monticulipora sp., Atactoporella sp., Homotrypa sp., Peronopora sp.
Monticulipora sp. d'Orbigny 1850
Atactoporella sp. Ulrich 1883
3 species
Homotrypa sp. Ulrich 1882
7 species
Peronopora sp. Nicholson 1881
 Trepostomida - Amplexoporidae
Discotrypa sp., Amplexopora sp.
Amplexopora sp.
5 species
 Cyclostomata - Corynotrypidae
Corynotrypa sp.
Corynotrypa sp. Bassler 1911
 Cyclostomata - Diastoporidae
Berenicea sp.
Berenicea sp. Lamouroux 1821
 Cyclostomata - Stomatoporidae
Stomatopora sp.
Stomatopora sp. Bronn 1825
 Trepostomata - Heterotrypidae
Stigmatella sp., "Dekayia sp." = Dekayia, "Petigopora sp." = Dekayia, Atactopora sp., Heterotrypa sp.
Stigmatella sp. Ulrich and Bassler 1906
3 species
"Dekayia sp." = Dekayia Milne-Edwards and Haime 1851
2 species
"Petigopora sp." = Dekayia Milne-Edwards and Haime 1851
2 species
Atactopora sp.
2 species
Heterotrypa sp. Nicholson 1879
4 species
 Trepostomata - Batostomellidae
Bythopora sp.
Bythopora sp. Miller and Dyer 1878
2 species
 Trepostomata - Halloporidae
Hallopora sp.
Hallopora sp. Bassler 1911
2 species
Gymnolaemata
 Cheilostomata - Lacernidae
Arthropoma sp.
Arthropoma sp. Levinsen 1909
originally entered as "Arthropora sp."
Sedentaria
 Sabellida - Serpulidae
Spirorbis sp.
Spirorbis sp. Daudin 1800
2 species - originally entered as "Spirobis sp."
Polychaeta
 Serpulimorpha -
Serpulites sp.
 Cuniculepadida - Lepidocoleidae
Lepidocoleus sp.
Lepidocoleus sp. Faber 1886 scale worm
 Eunicemorpha -
Nereidavus sp., Arabellites sp.
Rostroconchia
 Ribeirioida - Technophoridae
Technophorus faberi
Technophorus faberi Miller 1889
Bivalvia
 Nuculanida - Cucullellidae
"Cleidophorus sp." = Nuculites
"Cleidophorus sp." = Nuculites Conrad 1841 clam
 Solemyida - Ctenodontidae
Ctenodonta sp.
Ctenodonta sp. Salter 1852 clam
3 species
 Modiomorphida - Modiomorphidae
Modiolodon sp., Modiolopsis sp., Cymatonota sp., Pyanomya sp.
Modiolodon sp. Ulrich 1894 clam
Modiolopsis sp. Hall 1847 clam
5 species
Cymatonota sp. Ulrich 1893 clam
2 species
Pyanomya sp. Miller 1881 clam
2 species
 Cardiidia - Grammysiidae
? Sedgwickia sp.
? Sedgwickia sp. McCoy 1844 clam
originally entered as "? Sedgewickia sp."
 Pholadomyida -
Sphenolium sp.
Sphenolium sp. Miller 1889 clam
 Pholadomyida - Pholadomyidae
Rhytimya sp.
Rhytimya sp. Ulrich 1893 clam
6 species
 Unioni - Lyrodesmatidae
Lyrodesma sp.
Lyrodesma sp. Conrad 1841 clam
 Myalinida - Ambonychiidae
Allonychia sp., Opisthoptera sp., "Ambonychia sp." = Ambonychia, "Eridonychia sp." = Ambonychia
Allonychia sp. Ulrich 1895 clam
Opisthoptera sp. Meek 1871 clam
2 species
"Ambonychia sp." = Ambonychia Hall 1847 clam
4 species
"Eridonychia sp." = Ambonychia Hall 1847 clam
2 species
 Ostreida - Pterineidae
"Caritodens sp." = Pterinea
"Caritodens sp." = Pterinea Goldfuss 1832 oyster
4 species
 Colpomyida - Colpomyidae
Eurymya sp.
Eurymya sp. Ulrich 1894 clam
Gastropoda
 Bellerophontida -
Bellerophontoidea indet.2
Bellerophontoidea indet.2 M'Coy 1851 snail
 Bellerophontida - Sinuitidae
Sinuites sp.
Sinuites sp. Koken 1896 snail
 Bellerophontida - Bellerophontidae
Bucanopsis sp.
Bucanopsis sp. Ulrich and Scofield 1897 snail
 Bellerophontida - Bucaniidae
Phragmolites sp.
Phragmolites sp. Conrad 1838 snail
 Murchisoniina - Lophospiridae
Lophospira sp.
Lophospira sp. Whitfield 1886 snail
3 species
 Murchisoniina - Hormotomidae
"Seelya sp." = Plethospira
"Seelya sp." = Plethospira Ulrich and Scofield 1897 snail
 Murchisoniina - Gosseletinidae
Schizolopha sp.
Schizolopha sp. Ulrich and Scofield 1897 snail
 Murchisoniina - Eotomariidae
Clathrospira sp.
Clathrospira sp. Ulrich and Scofield 1897 snail
  -
Microceras sp.
Microceras sp. Hall 1845 snail
2 species
 Euomphalina - Holopeidae
Cyclora sp.
Cyclora sp. Hall 1845 snail
4 species
 Euomphalina - Platyceratidae
Cyclonema sp.
Cyclonema sp. Hall 1852 snail
5 species
 Euomphalina - Raphistomatidae
Raphistoma sp.
Raphistoma sp. Hall 1847 snail
Cephalopoda
 Actinocerida - Ormoceratidae
Troedssonoceras sp.
Troedssonoceras sp. Foerste 1928
2 species
 Orthocerida - Proteoceratidae
Treptoceras sp.
Treptoceras sp. Flower 1942
 Oncocerida - Diestoceratidae
Diestoceras sp.
Diestoceras sp. Foerste 1924
 Oncocerida - Valcouroceratidae
Augustoceras sp.
Augustoceras sp. Flower 1946
2 species
 Oncocerida - Oncoceratidae
Vaupelia sp.
Vaupelia sp. Flower 1946
Edrioasteroidea
  - Pyrgocystidae
Streptaster sp.
Streptaster sp. Hall 1872
  - Hemicystitidae
Cystaster sp., Cincinnatidiscus sp., Carneyella sp.
Cystaster sp. Hall 1871
Cincinnatidiscus sp. Bassler 1935
Carneyella sp. Forste 1916
 Isorophina - Isorophidae
Isorophus sp.
Isorophus sp. Foerste 1916
2 species
Cyclocystoidea
  - Cyclocystoididae
Cyclocystoides sp.
Cyclocystoides sp. Salter and Billings 1858
2 species
Asteroidea
 Hadrosida - Promopalaeasteridae
Promopalaeaster sp.
Promopalaeaster sp. Schuchert 1914 sea star
2 species
 Euaxosida - Palasterinidae
? Petraster sp.
? Petraster sp. Billings 1858 sea star
originally entered as "? Petraster sp."
 Euaxosida - Mesopalaeasteridae
Mesopalaeaster sp.
Mesopalaeaster sp. Schuchert 1914 sea star
Ophiuroidea
 Oegophiurida - Protasteridae
"Alepidaster sp." = Taeniaster
"Alepidaster sp." = Taeniaster Billings 1858 brittle star
Crinoidea
 Homocrinida - Homocrinidae
Ectenocrinus sp.
Ectenocrinus sp. Miller 1889 Sea lily
2 species
 Homocrinida - Anomalocrinidae
Anomalocrinus sp.
Anomalocrinus sp. Meek and Worthen 1868 Sea lily
 Homocrinida - Cincinnaticrinidae
Ohiocrinus sp.
Ohiocrinus sp. Wachsmuth and Springer 1886 Sea lily
 Myelodactylida - Iocrinidae
Iocrinus sp.
Iocrinus sp. Hall 1866 Sea lily
 Dendrocrinida - Dendrocrinidae
Dendrocrinus sp.
Dendrocrinus sp. Hall 1852 Sea lily
 Monobathrida - Glyptocrinidae
Glyptocrinus sp.
Glyptocrinus sp. Hall 1847 Sea lily
 Diplobathrida - Dimerocrinitidae
Ptychocrinus sp.
Ptychocrinus sp. Wachsmuth and Springer 1885 Sea lily
Pterobranchia
 Graptoloidea - Climacograptidae
Climacograptus sp.
Climacograptus sp. Hall 1865 climacograptid
 Graptoloidea - Mastigograptidae
Mastigograptus sp.
Mastigograptus sp. Ruedemann 1908 graptolite
1Hendy 2008; 2Wagner 2023