Where: Michigan (42.1° N, 83.6° W: paleocoordinates 36.1° S, 30.7° W)
• coordinate based on political unit
• local area-level geographic resolution
When: Silica Formation, Givetian (387.7 - 382.7 Ma)
• formation-level stratigraphic resolution
Environment/lithology: marine; limestone and shale
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 38475: authorized by Michael Foote, entered by Michael Foote on 21.04.2004, edited by Jennifer Bauer
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Crinoidea | |
Gennaeocrinus chilmanae Sea lily | |
Arthroacantha carpenteri Sea lily | |
Gilbertsocrinus ohioensis Sea lily | |
Blastoidea | |
Hyperoblastus reimanni blastoid | |
Tentaculita | |
Styliolina fissurella Hall 1879 | |
Nowakia sp. Gurich 1896 | |
Lophophorata | |
Tentaculites bellulus Hall 1876 | |
Rhynchonellata | |
Cranaena romingeri Hall 1863 | |
Callipleura cf. nobilis Hall 1860 | |
Tropidoleptus carinatus Conrad 1839 | |
"Ambocoelia" "umbonata" Conrad 1842 | |
"Brachyspirifer audaculus" = Mediospirifer audaculus, Spinocyrtia "euryteines"
"Brachyspirifer audaculus" = Mediospirifer audaculus Conrad 1842 | |
Rhipidomella vanuxemi Hall 1857 | |
Pseudoatrypa cf. devoniana Webster 1921 | |
Strophomenata | |
Protoleptostrophia perplana Conrad 1839 | |
Pholidostrophia geniculata, Pholidostrophia gracilis, Pholidostrophia nacrea, Pholidostrophia sp., "Strophodonta erratica" = Strophomena (Strophodonta), "Strophodonta extenuata" = Strophomena (Strophodonta), Strophodonta titan, "Strophodonta "demissa"" = Strophodonta (Strophodonta) demissa, Megastrophia concava
Pholidostrophia sp. Hall and Clarke 1892
"Strophodonta erratica" = Strophomena (Strophodonta)
"Strophodonta extenuata" = Strophomena (Strophodonta)
Strophodonta titan Imbrie 1959
"Strophodonta "demissa"" = Strophodonta (Strophodonta) demissa Conrad 1842 | |
Devonalosia wrightorum Muir-Wood and Cooper 1960 | |
Spinulicosta spinulicosta Hall 1857 | |
"Orthopleura "sp. B Imbrie"" = Imbriea
"Orthopleura "sp. B Imbrie"" = Imbriea Reily 2020 | |
Gymnolaemata | |
Stenolaemata | |
Fistuliporidae indet. Ulrich 1882 | |
Intrapora sp. Hall 1883 | |
Semicoscinium sp. Prout 1859 | |
Gastropoda | |
Nodonema sp. Linsley 1968 snail | |
"Loxonema hamiltoniae" = Palaeozygopleura hamiltoniae
"Loxonema hamiltoniae" = Palaeozygopleura hamiltoniae Hall 1859 snail | |
Platyceras (Platyceras) bucculentum, Platyceras (Platyceras) carinatum, Platyceras (Platyceras) rarispinum
Platyceras (Platyceras) bucculentum Hall 1862 snail
Platyceras (Platyceras) carinatum Hall 1862 snail
Platyceras (Platyceras) rarispinum Hall 1859 snail | |
Trilobita | |
"Phacops rana" = Eldredgeops rana
"Phacops rana" = Eldredgeops rana Green 1832 trilobite | |
Malacostraca | |
Ostracoda | |
Phlyctiscapha apleta Kesling 1954 ostracod Found in units 1-6 (Tropidoleptus carinatus zone), 9-11 ("Chonetes" zone), 12, and 14-15.
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Hollinella (Keslingella) labrosa, Hollinella (Keslingella) antespinosa, Hollinella (Keslingella) pumila, Tetrasacculus bilobus
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Arcyzona bythiclimacota, Arcyzona rhabdota, Arcyzona campylactinota, Arcyzona homalosagenota, Arcyzona diademata
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Tetrastorthynx diabolicus, Stictobollia alethaae, Xystinotus wrightorum, Xystinotus subnodatus, Ulrichia conradi, Ulrichia fastidiosa, Ulrichia fragilis, Ulrichia illinearis, Ulrichia spinifera
Ulrichia fastidiosa Kesling and Chilman 1978 ostracod Soft shales of the Styliolina beds, Units 9-11
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Hanaites platus, Ctenoloculina cicatricosa, Ctenoloculina acanthina, Ctenoloculina eurybathrota, Subligaculum bifidum, Subligaculum scrobiculatum, Adelphobolbina spicata, Adelphobolbina trilobata, Falsipollex laxivelatus, Falsipollex lativelatus
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Kirkbyella (Kirkbyella) bellipuncta, Kirkbyella (Berdanella) unicornis, Kirkbyella (Berdanella) stewartae
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Eukloedenella doverensis, Dizygopleura euglyphea, Dizygopleura trisinuata, Punctoprimitia simplex, Poloniella cingulata
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Knoxiella rutkowskiae, Knoxiella truncata, Hypotetragona fractodorsalis, Hypotetragona aequitalis, Hypotetragona harrietensis
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Euglyphella lispa, Euglyphella compressa, Euglyphella projecta, Euglyphella modesta, Euglyphella sigmoidalis
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Bairdiocypris gongylus, Bairdiocypris transptyxis, Praepilatina silicensis, Rugocytherellina ehlersi
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Cytherellina lechria, Cytherellina kutasii, Cytherellina lucasensis, Cytherellina subquadrata, Cytherellina tanymeka, Nannohealdia arcuata, Healdia medusaensis, Healdia arkonensis, Healdia gibba, Ponderodictya ohioensis, Ponderodictya punctulifera, Ponderodictya rhodesi
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Jenningsina catenulata, Quasillites concentricus, Quasillites obliquus, Quasillites fordei, Quasillites sublunatus
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Hyphasmaphora textiligera, Octonaria quadricostata, Octonaria laevilitata, Octonaria crescentiformis
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Anthozoa | |
Aulocystis auloporoidea tabulate coral
Aulocystis jacksoni tabulate coral
Aulocystis lucasensis tabulate coral | |
Aulopora microbuccinata tabulate coral
Planalveolitella parasitica tabulate coral | |
Pleurodictyum (Procteria) cornu tabulate coral | |
"Trachypora labyrinthica" = Thamnoptychia, "Trachypora minuitissima" = Thamnoptychia, "Trachypora silicensis" = Thamnoptychia
"Trachypora labyrinthica" = Thamnoptychia tabulate coral
"Trachypora minuitissima" = Thamnoptychia tabulate coral
"Trachypora silicensis" = Thamnoptychia tabulate coral | |
Heterophrentis simplex horn coral | |
Bethanyphyllum robustum horn coral | |
Kavaryella cracens | |
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