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 | |
Anthozoa | |
Bethanyphyllum robustum horn coral | |
Heterophrentis simplex horn coral | |
Aulocystis auloporoidea tabulate coral
Aulocystis jacksoni tabulate coral
Aulocystis lucasensis tabulate coral | |
Planalveolitella parasitica tabulate coral
Aulopora microbuccinata 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 | |
Pleurodictyum (Procteria) cornu tabulate coral | |
Trilobita | |
"Phacops rana" = Eldredgeops rana
"Phacops rana" = Eldredgeops rana Green 1832 trilobite | |
Ostracoda | |
Euglyphella sigmoidalis, Euglyphella projecta, Euglyphella compressa, Euglyphella modesta, Euglyphella lispa, Octonaria laevilitata, Octonaria quadricostata, Octonaria crescentiformis
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Healdia arkonensis, Healdia gibba, Healdia medusaensis, Cytherellina lucasensis, Cytherellina kutasii, Cytherellina subquadrata, Cytherellina tanymeka, Cytherellina lechria, Nannohealdia arcuata, Ponderodictya ohioensis, Ponderodictya punctulifera, Ponderodictya rhodesi
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Quasillites fordei, Quasillites sublunatus, Quasillites obliquus, Quasillites concentricus, Jenningsina catenulata
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Praepilatina silicensis, Bairdiocypris transptyxis, Bairdiocypris gongylus, Rugocytherellina ehlersi
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Kirkbyella (Berdanella) stewartae, Kirkbyella (Berdanella) unicornis, Kirkbyella (Kirkbyella) bellipuncta
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Tetrasacculus bilobus, Hollinella (Keslingella) pumila, Hollinella (Keslingella) antespinosa, Hollinella (Keslingella) labrosa
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Arcyzona diademata, Arcyzona rhabdota, Arcyzona homalosagenota, Arcyzona bythiclimacota, Arcyzona campylactinota
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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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Adelphobolbina trilobata, Adelphobolbina spicata, Falsipollex lativelatus, Falsipollex laxivelatus, Ctenoloculina acanthina, Ctenoloculina eurybathrota, Ctenoloculina cicatricosa, Subligaculum bifidum, Subligaculum scrobiculatum, Hanaites platus
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Tetrastorthynx diabolicus, Stictobollia alethaae, Ulrichia fastidiosa, Ulrichia fragilis, Ulrichia illinearis, Ulrichia conradi, Ulrichia spinifera, Xystinotus wrightorum, Xystinotus subnodatus
Ulrichia fastidiosa Kesling and Chilman 1978 ostracod Soft shales of the Styliolina beds, Units 9-11
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Poloniella cingulata, Punctoprimitia simplex, Dizygopleura euglyphea, Dizygopleura trisinuata, Eukloedenella doverensis
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Knoxiella rutkowskiae, Knoxiella truncata, Hypotetragona fractodorsalis, Hypotetragona aequitalis, Hypotetragona harrietensis
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Malacostraca | |
Tentaculita | |
Nowakia sp. Gurich 1896 | |
Styliolina fissurella Hall 1879 | |
Gastropoda | |
Platyceras (Platyceras) rarispinum, Platyceras (Platyceras) bucculentum, Platyceras (Platyceras) carinatum
Platyceras (Platyceras) rarispinum Hall 1859 snail
Platyceras (Platyceras) bucculentum Hall 1862 snail
Platyceras (Platyceras) carinatum Hall 1862 snail | |
"Loxonema hamiltoniae" = Palaeozygopleura hamiltoniae
"Loxonema hamiltoniae" = Palaeozygopleura hamiltoniae Hall 1859 snail | |
Nodonema sp. Linsley 1968 snail | |
Stenolaemata | |
Semicoscinium sp. Prout 1859 | |
Intrapora sp. Hall 1883 | |
Fistuliporidae indet. Ulrich 1882 | |
Gymnolaemata | |
Rhynchonellata | |
Pseudoatrypa cf. devoniana Webster 1921 | |
Tropidoleptus carinatus Conrad 1839 | |
Callipleura cf. nobilis Hall 1860 | |
Spinocyrtia "euryteines", "Brachyspirifer audaculus" = Mediospirifer audaculus
"Brachyspirifer audaculus" = Mediospirifer audaculus Conrad 1842 | |
"Ambocoelia" "umbonata" Conrad 1842 | |
Rhipidomella vanuxemi Hall 1857 | |
Cranaena romingeri Hall 1863 | |
Strophomenata | |
"Orthopleura "sp. B Imbrie"" = Imbriea
"Orthopleura "sp. B Imbrie"" = Imbriea Reily 2020 | |
Megastrophia concava, "Strophodonta erratica" = Strophomena (Strophodonta), "Strophodonta extenuata" = Strophomena (Strophodonta), Strophodonta titan, "Strophodonta "demissa"" = Strophodonta (Strophodonta) demissa, Pholidostrophia geniculata, Pholidostrophia gracilis, Pholidostrophia nacrea, Pholidostrophia sp.
"Strophodonta erratica" = Strophomena (Strophodonta)
"Strophodonta extenuata" = Strophomena (Strophodonta)
Strophodonta titan Imbrie 1959
"Strophodonta "demissa"" = Strophodonta (Strophodonta) demissa Conrad 1842
Pholidostrophia sp. Hall and Clarke 1892 | |
Protoleptostrophia perplana Conrad 1839 | |
Spinulicosta spinulicosta Hall 1857 | |
Devonalosia wrightorum Muir-Wood and Cooper 1960 | |
Lophophorata | |
Tentaculites bellulus Hall 1876 | |
Crinoidea | |
Gilbertsocrinus ohioensis Sea lily | |
Arthroacantha carpenteri Sea lily | |
Gennaeocrinus chilmanae Sea lily | |
Blastoidea | |
Hyperoblastus reimanni blastoid | |
Kavaryella cracens | |
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