PBDB Collection

Silica Formation Unit 9B (Devonian of the United States)

Where: Ohio (41.7° N, 83.7° W: paleocoordinates 36.4° S, 31.0° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Silica Formation, Givetian (387.7 - 382.7 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; gray, blue, calcareous shale

• Overall sequence: Bioclastic limestone; argillaceous limestone; shale. This unit: "shale, calcareous, blue-gray, abundant marcasite concretions"

Primary reference: R. V. Kesling and R. B. Chilman. 1975. Strata and megafossils of the Middle Devonian Silica Formation. University of Michigan Papers on Paleontology 8:1-408 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 38460: authorized by Michael Foote, entered by Michael Foote on 21.04.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

unclassified
-	? Semipora ehlersi ? Semipora ehlersi
Malacostraca
Archaeostraca -	Echinocaris punctata, Rhinocaris ehlersi Echinocaris punctata Rhinocaris ehlersi
Archaeostraca - Rhinocarididae	Dithyrocaris cf. neptuni Dithyrocaris cf. neptuni
Trilobita
Phacopida - Phacopidae	"Phacops rana" = Eldredgeops rana "Phacops rana" = Eldredgeops rana Green 1832 trilobite
Proetida - Proetidae	"Dechenella (Dechenella) alpenensis" = Dechenella alpenensis, "Dechenella (Basidechenella) lucasensis" = Basidechenella lucasensis "Dechenella (Dechenella) alpenensis" = Dechenella alpenensis Stumm 1953 trilobite "Dechenella (Basidechenella) lucasensis" = Basidechenella lucasensis Stumm 1965 trilobite
Tentaculita
Cornulitida - Cornulitidae	Cornulites sp. Cornulites sp. Schlotheim 1820
Styliolinida - Styliolinidae	Styliolina fissurella Styliolina fissurella Hall 1879
Cephalopoda
Goniatitida - Tornoceratidae	Tornoceras uniangulare Tornoceras uniangulare Conrad 1842 ammonite
Dissidocerida - Geisonoceratidae	Protokionoceras sp. Protokionoceras sp. Grabau and Shimer 1910
Gastropoda
Euomphalina - Platyceratidae	"Platyceras (Platyostoma) cf. lineatum" = Platyostoma lineata "Platyceras (Platyostoma) cf. lineatum" = Platyostoma lineata Conrad 1842 snail
Bivalvia
Nuculanida - Malletiidae	Palaeoneilo aff. constricta Palaeoneilo aff. constricta Conrad 1842 clam
Ostreida - Pterineidae	Ptychopteria (Actinopteria) boydi, Leptodesma (Leiopteria) ausablensis, Cornellites flabellum, Limoptera macroptera Ptychopteria (Actinopteria) boydi Conrad 1842 oyster Leptodesma (Leiopteria) ausablensis oyster Cornellites flabellum oyster Limoptera macroptera oyster
Pectinida - Pterinopectinidae	Pseudaviculopecten scabridus, Lyriopecten mitchelli, Pterinopecten (Pterinopecten) undosus Pseudaviculopecten scabridus scallop Lyriopecten mitchelli scallop Pterinopecten (Pterinopecten) undosus scallop
Lucinida - Mactromyidae	Paracyclas lirata Paracyclas lirata clam
Cardiidia - Grammysiidae	Grammysia sylvanensis, Grammysia nodocostata Grammysia sylvanensis clam Grammysia nodocostata clam
Modiomorphida - Cypricardiniidae	Cypricardinia indenta Cypricardinia indenta Conrad 1842 clam
Modiomorphida - Modiomorphidae	Modiomorpha subalata, Glossites subtenuis, ? Glossites "sp. A" Modiomorpha subalata clam Glossites subtenuis clam ? Glossites "sp. A" Hall 1885 clam
Solenida - Orthonotidae	Orthonota undulata Orthonota undulata Conrad 1841 clam
Lophophorata
Tentaculitida - Tentaculitidae	Tentaculites bellulus Tentaculites bellulus Hall 1876
Rhynchonellata
Spiriferinida - Cyrtinidae	Cyrtina "hamiltonensis" Cyrtina "hamiltonensis" Hall 1857
Spiriferida - Ambocoeliidae	Echinocoelia sp. Echinocoelia sp.
Spiriferida - Spinocyrtiidae	"Brachyspirifer audaculus" = Mediospirifer audaculus "Brachyspirifer audaculus" = Mediospirifer audaculus Conrad 1842
Spiriferida - Hysterolitidae	Paraspirifer bownockeri Paraspirifer bownockeri
Spiriferida - Mucrospiriferidae	Mucrospirifer prolificus Mucrospirifer prolificus
Orthida - Schizophoriidae	Schizophoria ferronensis Schizophoria ferronensis
Rhynchonellida - Leiorhynchidae	Leiorhynchus lucasi Leiorhynchus lucasi
Terebratulida - Cranaenidae	Cranaena romingeri Cranaena romingeri Hall 1863
Strophomenata
Strophomenida - Leptostrophiidae	Protoleptostrophia perplana Protoleptostrophia perplana Conrad 1839
Strophomenida - Chonetidae	Devonochonetes fragilis, Devonochonetes coronatus, Devonochonetes ? scitulus Devonochonetes fragilis Devonochonetes coronatus Hall 1857 Devonochonetes ? scitulus Hall 1857
Strophomenida - Strophodontidae	Pholidostrophia nacrea Pholidostrophia nacrea
Craniata
Craniida - Craniidae	Philhedra crenistriatula, Petrocrania hamiltonensis Philhedra crenistriatula Petrocrania hamiltonensis
Stenolaemata
Cryptostomata - Hyphasmoporidae	Streblotrypa anomala, Streblotrypa hamiltonensis, Streblotrypa sp. Streblotrypa anomala Streblotrypa hamiltonensis Streblotrypa sp.
Cystoporata - Fistuliporidae	Fistuliporidae indet., Fistulipora vesiculata Fistuliporidae indet. Ulrich 1882 Fistulipora vesiculata
Cystoporata - Botrylloporidae	Botryllopora socialis Botryllopora socialis
Cystoporida - Sulcoreteporidae	Sulcoretepora deissi, Sulcoretepora incisurata Sulcoretepora deissi Sulcoretepora incisurata
Trepostomida - Atactotoechidae	Leptotrypella ohioensis, Leptotrypella sp., Anomalotoechus tuberatus, Anomalotoechus sp. Leptotrypella ohioensis Leptotrypella sp. Vinassa de Regny 1921 Anomalotoechus tuberatus Anomalotoechus sp. Duncan 1939
Cyclostomata - Hederellidae	Hederella alpenensis, Hederella filiformis, Hederella magna, Hederella parvirugosa, Hederella rectifurcata, Hederella reimanni, Hederella thedfordensis Hederella alpenensis Hederella filiformis Hederella magna Hederella parvirugosa Hederella rectifurcata Hederella reimanni Hederella thedfordensis
Cyclostomata - Reptariidae	Reptaria stolonifera Reptaria stolonifera Rolle 1851
Trepostomata - Heterotrypidae	Leioclema alpenense Leioclema alpenense
Rhabdomesida - Rhabdomesidae	Acanthoclema ohioensis, Acanthoclema lineatum, Acanthoclema sulcatum Acanthoclema ohioensis Acanthoclema lineatum Acanthoclema sulcatum
Gymnolaemata
Ctenostomata - Ascodictyidae	Ascodictyon fusiforme, Ascodictyon sp., Eliasopora stellatum Ascodictyon fusiforme Ascodictyon sp. Eliasopora stellatum
Polychaeta
Sabellida - Serpulidae	Spirorbis arkonensis Spirorbis arkonensis
Crinoidea
Cladida -	? Kophinocrinus ? magrumi ? Kophinocrinus ? magrumi Sea lily
Sagenocrinida - Euryocrinidae	? Euryocrinus laddii ? Euryocrinus laddii Sea lily
Poteriocrinina - Decadocrinidae	Decadocrinus hughwingi, Decadocrinus wrightae Decadocrinus hughwingi Sea lily Decadocrinus wrightae Sea lily
Cladida - Botryocrinidae	Botryocrinus neimani Botryocrinus neimani Sea lily
Diplobathrida - Rhodocrinitidae	Gilbertsocrinus ohioensis Gilbertsocrinus ohioensis Sea lily
Monobathrida - Hexacrinitidae	Arthroacantha carpenteri Arthroacantha carpenteri Sea lily
Anthozoa
Auloporida - Aulocystidae	Aulocystis flabellata Aulocystis flabellata tabulate coral
Auloporida - Auloporidae	Planalveolitella parasitica, Aulopora serpens Planalveolitella parasitica tabulate coral Aulopora serpens Goldfuss 1829 tabulate coral
Cystiphyllida - Cystiphyllidae	Cystiphylloides americanum Cystiphylloides americanum horn coral
Stauriida - Amplexidae	Heterophrentis simplex Heterophrentis simplex horn coral
Stauriida - Zaphrentidae	Heliophyllum halli Heliophyllum halli Edwards and Haime 1851 horn coral