Arnheim - type Cincinnatian: Richmondian, Ohio

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Edrioasteroidea - Isorophidae
Isorophus holbrooki
Isorophus warrenensis
Edrioasteroidea - Pyrgocystidae
Streptaster vorticellatus Hall 1866
Edrioasteroidea - Hemicystitidae
Carneyella foerstei
unclassified
Rhopolonaria venosa
Faberia anomala
Scolithos laxata
Asteroidea - Euaxosida - Mesopalaeasteridae
Mesopalaeaster wilberanus (Meek and Worthen 1862)
Asteroidea - Euaxosida - Palasterinidae
Petraster speciosus (Miller and Dyer 1878)
recombined as Jugiaster speciosus
Asteroidea - Hadrosida - Urasterellidae
Urasterella grandis (Meek 1872)
recombined as Salteraster grandis
Asteroidea - Hadrosida - Hudsonasteridae
Hudsonaster incomptus (Meek 1872)
Asteroidea - Hadrosida - Promopalaeasteridae
Promopalaeaster wykoffi (Miller and Gurley 1897)
Promopalaeaster granulosus (Hall 1868)
Crinoidea - Monobathrida - Tanaocrinidae
Glyptocrinus richardsoni Wetherby 1880
recombined as Canistrocrinus richardsoni
Cyclocystoidea - Cyclocystoididae
Cyclocystoides magnus Miller and Dyer 1878
recombined as Zygocycloides magnus
Cyclocystoides minus Miller and Dyer 1878
synonym of Zygocycloides magnus
Pterobranchia - Graptoloidea - Mastigograptidae
Mastigograptus strictus
Pterobranchia - Graptoloidea - Diplograptidae
Diplograptus recurrens
Diplograptus sp.
Tentaculita - Cornulitida - Cornulitidae
Cornulites flexuosus
Hyolithida - Hyolithidae
Hyolithes parviusculus
Hyolithes versaillensis
Hyolithes dubius
Lingulata - Lingulida - Trematidae
Trematis reticularis
Trematis millepunctata Hall 1875
Craniata - Craniida - Craniidae
Petrocrania laelia
Petrocrania scabiosa (Hall 1866)
Strophomenata - Strophomenida - Strophomenidae
Strophomena concordensis Foerste 1909
Strophomena planumbona (Hall 1847)
Strophomenata - Strophomenida - Rafinesquinidae
Rafinesquina alternata (Conrad 1838)
Leptaena richmondensis Foerste 1909
Rhynchonellata - Atrypida - Anazygidae
Zygospira modesta (Hall 1847)
Rhynchonellata - Rhynchonellida - Rhynchotrematidae
Rhynchotrema capax (Conrad 1842)
recombined as Hiscobeccus capax
Rhynchonellata - Orthida - Dalmanellidae
Dalmanella meeki (Miller 1875)
recombined as Cincinnetina meeki
Rhynchonellata - Orthida - Plaesiomyidae
Dinorthis carleyi (Hall 1860)
Rhynchonellata - Orthida - Platystrophiidae
Platystrophia foerstei McEwan 1919
recombined as Vinlandostrophia foerstei
Platystrophia wallowayi
Platystrophia ponderosa Foerste 1909
Platystrophia cypha (James 1874)
original and current combination Orthis cypha
Rhynchonellata - Orthida - Plectorthidae
Hebertella occidentalis (Hall 1847)
Stenolaemata - Cystoporata - Ceramoporidae
Coeloclema oweni
Ceramoporella ohioensis
Ceramoporella granulosa Ulrich 1890
Stenolaemata - Trepostomida - Amplexoporidae
Amplexopora pustulosa
Amplexopora robusta
Rhombotrypa subquadrata
Stenolaemata - Trepostomida
Nicholsonella peculiaris
Stenolaemata - Trepostomida - Monticuliporidae
Mesotrypa orbiculata
Peronopora decipiens
Homotrypella dubia
Stenolaemata - Cyclostomata - Diastoporidae
Berenicea primitiva
Stenolaemata - Cyclostomata - Corynotrypidae
Corynotrypa delicatula (James 1878)
Corynotrypa inflata (Nicholson 1875)
Stenolaemata - Cyclostomata - Sagenellidae
Proboscina auloporoides (Nicholson 1875)
recombined as Tubulotrypa auloporoides
Proboscina frondosa (Nicholson 1875)
synonym of Tubulotrypa auloporoides
Stenolaemata - Cryptostomata - Rhinidictyidae
Dicranopora emacerata (Nicholson 1875)
recombined as Stictopora emacerata
Stenolaemata - Trepostomata - Heterotrypidae
Petigopora offfula
synonym of Dekayia
Stigmatella catenulata
Stigmatella dychei
Stigmatella crenulata Ulrich and Bassler 1906
Stenolaemata - Trepostomata - Batostomellidae
Bythopora delicatula
Bythopora striata
Stenolaemata - Trepostomata - Halloporidae
Hallopora subnodosa
Hallopora bassleri
Hallopora flabellaris
Hallopora libana
Hallopora nicklesi
Stenolaemata - Trepostomata - Trematoporidae
Batostoma varians
Polychaeta - Eunicemorpha
Nereidavus varians
Cephalopoda - Endocerida - Endoceratidae
Endoceras sp. Hall 1847
Cephalopoda - Ascocerida - Hebetoceratidae
Ecdyceras foerstei
Cephalopoda - Ascocerida - Probillingsitidae
Probillingsites lebanonensis
Cephalopoda - Orthocerida - Proteoceratidae
Treptoceras spp.
Tergomya - Archinacellida - Archinacellidae
Archinacella rugatina Ulrich and Scofield 1897
Tergomya - Cyrtonellida - Cyrtolitidae
Microceras inornatum Hall 1845
recombined as Cyrtolites inornatum
Cyrtolites ornatus Conrad 1838
Gastropoda - Bellerophontida - Sinuitidae
Sinuites cancellata (Hall 1847)
recombined as Sinuites cancellatus
Gastropoda - Murchisoniina - Lophospiridae
Lophospira tropidophora (Meek 1873)
recombined as Paupospira tropidophora
Lophospira bowdeni (Safford 1869)
recombined as Paupospira bowdeni
Lophospira bicincta (Hall 1847)
synonym of Lophospira milleri
Lophospira pulchella Ulrich and Scofield 1897
synonym of Lophospira perangulata
Gastropoda - Murchisoniina - Eotomariidae
Liospira rugata Ulrich and Scofield 1897
recombined as Paraliospira rugata
Gastropoda - Euomphalina - Platyceratidae
Cyclonema bilix (Conrad 1842)
Cyclora minuta Hall 1845
recombined as Cyclonema minuta
Cyclonema humerosum Ulrich and Scofield 1897
Gastropoda - Euomphalina - Holopeidae
Cyclora depressa
Cyclora hoffmani
Cyclora pulcella
Cyclora parvula (Hall 1845)
Bivalvia - Nuculanida - Cucullellidae
Cleidophorus faberi
synonym of Nuculites
Cleidophorus fabula
synonym of Nuculites
Bivalvia - Nuculida - Nucularcidae
Ctenodonta cingulata (Ulrich 1879)
recombined as Nucularca cingulata
Bivalvia - Solemyida - Ctenodontidae
Ctenodonta recurva
Ctenodonta madisonensis Ulrich 1894
Bivalvia - Myalinida - Ambonychiidae
Byssonychia radiata (Hall 1847)
synonym of Byssonychia radiata
Anomalodonta alata (Meek 1872)
recombined as Ambonychia alata
Anomalodonta costata
Opisthoptera concordensis Foerste 1910
recombined as Maryonychia concordensis
Bivalvia - Ostreida - Pterineidae
Caritodens demissa (Conrad 1842)
recombined as Pterinea demissa
Bivalvia - Cyrtodontida - Cyrtodontidae
Cyrtodonta halli
Bivalvia - Modiomorphida - Modiomorphidae
Modiolopsis capax
Orthodesma canaliculatum Ulrich 1894
Modiolodon subovalis
Cymatonota constricta
Cymatonota cylindrica
Bivalvia - Pholadomyida - Pholadomyidae
Rhytimya faberi
Rhytimya lunulata
Ostracoda - Leperditellocopida - Aparchitidae
Aparchites minutissimus
Aparchites oblongus
Ostracoda - Leperditellocopida - Primitiidae
Primitia cincinnatiensis
Ostracoda - Beyrichicopida - Bolliidae
Ulrichia nodosa
Bollia persulcata
Bollia regularis
Ostracoda - Beyrichicopida - Aechminidae
Aechmina richmondensis
Ostracoda - Podocopida - Bythocyprididae
Bythocypris cylindrica (Hall 1871)
recombined as Phelobythocypris cylindrica
Ostracoda - Palaeocopida - Hollinidae
Ctenobolbina hammeli
Trilobita - Phacopida - Calymenidae
Flexicalymene meeki (Foerste 1910)
Trilobita - Phacopida - Cheiruridae
Ceraurinus icarus (Billings 1860)
Trilobita - Asaphida - Asaphidae
Isotelus megistos Locke 1842
Isotelus maximus Locke 1838
Scyphozoa - Conulariida - Conulariidae
Conularia formosa
Anthozoa - Stauriida - Columnariidae
Columnaria calicina Nicholson 1874
Stromatoporoidea - Labechiida - Lophiostromatidae
Dermatostroma scabrum
Stromatoporoidea - Labechiida - Aulaceratidae
Beatricea nodulosa Billings 1857
Coleolidae
Coleolus iowensis
unclassified
Buthotrephis gracilis Hall 1847
[entered as Buthtrephis gracilis]
Chlorophyceae - Dasycladales
Pasceolus camdenensis
Protozoa - Spumellaria
Beatricea undulata Billings 1857
unclassified
Rusophycus biloba Vanuxem 1842
Arthraria biclavata Miller 1875
see common names

Geography
Country:United States State/province:Ohio
Coordinates: 39.0° North, 84.0° West (view map)
Paleocoordinates:26.1° South, 58.0° West
Geographic resolution:basin
Time
Period:Ordovician Epoch:Late/Upper Ordovician
Stage:Katian 10 m.y. bin:Ordovician 5
*Period:Late/Upper Ordovician *Epoch:Middle Ashgill
*Local age/stage:Early/Lower Richmondian
Key time interval:Richmondian Conodont zone: Amorphognathus superbus
Age range of interval:449.80000 - 446.00000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Arnheim
Stratigraphic resolution:formation
Stratigraphy comments: Richmondian; Includes collections from both Sunset and Oregonia Members of Arnheim Formation. Sunset includes two distinct facies, one was deposited in a deep subtidal ramp environment and the other was deposited in a shallow subtidal environment. Oregonia was deposited in a shallow subtidal environment.
Lithology and environment
Primary lithology:hummocky CS,bioturbation,phosphatic argillaceous packstone
Secondary lithology: mudstone
Includes fossils?Y
Includes fossils?Y
Lithology description: oregonia member of arnheim consists of nodular to very thinly and wavy bedded skeletal phosphatic packstones and grainstones, interbedded with mudstone. kentucky facies of sunset consists of medium to thin bedded skeletal wackestones to packstones interbedded with very thin beds of mudstone. ohio/indiana facies of sunset member consists of roughly even proportions of thin-bedded mudstone and thin to medium bedded skeletal packstone to grainstone.
Environment:carbonate indet. Tectonic setting:foreland basin
Geology comments: Geological information from field notes of S.M. Holland
Taphonomy
Modes of preservation:body,original calcite,replaced with phosphate
Size of fossils:macrofossils,mesofossils
Collection methods and comments
Collection methods:field collection,observed (not collected)
Reason for describing collection:biostratigraphic analysis
Metadata
Database number:5326
Authorizer:S. Holland Enterer:S. Holland
Modifier:P. Wagner Research group:marine invertebrate
Created:1999-09-23 11:01:44 Last modified:2018-03-31 22:07:04
Access level:the public Released:1999-09-23 11:01:44
Creative Commons license:CC BY
Reference information

Primary reference:
316. 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]