Where: Michigan (42.3° N, 83.0° W: paleocoordinates 36.0° S, 30.1° W)
• coordinate based on political unit
• outcrop-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 38476: 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 | |
Ostracoda | |
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Kirkbyella (Berdanella) stewartae, Kirkbyella (Berdanella) unicornis, Kirkbyella (Kirkbyella) bellipuncta
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Tetrasacculus bilobus, Hollinella (Keslingella) pumila, Hollinella (Keslingella) labrosa, Hollinella (Keslingella) antespinosa
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Stictobollia alethaae, Ulrichia illinearis, Ulrichia spinifera, Ulrichia fragilis, Ulrichia fastidiosa, Ulrichia conradi, Xystinotus subnodatus, Xystinotus wrightorum, Tetrastorthynx diabolicus
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Adelphobolbina spicata, Adelphobolbina trilobata, Falsipollex lativelatus, Subligaculum bifidum, Hanaites platus, Ctenoloculina eurybathrota, Ctenoloculina cicatricosa
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Healdia arkonensis, Healdia medusaensis, Healdia gibba, Cytherellina subquadrata, Cytherellina kutasii, Cytherellina lucasensis, Cytherellina tanymeka, Cytherellina lechria, Ponderodictya ohioensis, Ponderodictya rhodesi, Ponderodictya punctulifera, Nannohealdia arcuata
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Glyphella reticulata, Quasillites fordei, Quasillites sublunatus, Quasillites concentricus, Quasillites obliquus, Jenningsina catenulata
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Octonaria quadricostata, Euglyphella projecta, Euglyphella sigmoidalis, Euglyphella compressa, Euglyphella modesta, Euglyphella lispa
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Strophomenata | |
"Orthopleura "sp. B Imbrie"" = Imbriea
"Orthopleura "sp. B Imbrie"" = Imbriea Reily 2020 | |
Schuchertella sp. Girty 1904 | |
Protoleptostrophia perplana Conrad 1839 | |
Megastrophia concava, Pholidostrophia gracilis, Pholidostrophia nacrea, "Strophodonta "demissa"" = Strophodonta (Strophodonta) demissa
"Strophodonta "demissa"" = Strophodonta (Strophodonta) demissa Conrad 1842 | |
Rhynchonellata | |
Tropidoleptus carinatus Conrad 1839 | |
Callipleura cf. nobilis Hall 1860 | |
Cyrtina "hamiltonensis" Hall 1857 | |
"Ambocoelia" "umbonata" Conrad 1842 | |
"Brachyspirifer audaculus" = Mediospirifer audaculus
"Brachyspirifer audaculus" = Mediospirifer audaculus Conrad 1842 | |
Mucrospirifer mucronatus Conrad 1841 | |
Pseudoatrypa cf. devoniana Webster 1921 | |
Gymnolaemata | |
Stenolaemata | |
Stereotoechus cf. typicus Duncan 1939 | |
Intrapora sp. Hall 1883 | |
Fistuliporidae indet. Ulrich 1882 | |
Lophophorata | |
Tentaculites bellulus Hall 1876 | |
Anthozoa | |
"Trachypora minuitissima" = Thamnoptychia
"Trachypora minuitissima" = Thamnoptychia tabulate coral | |
Aulocystis jacksoni tabulate coral
Aulocystis lucasensis tabulate coral | |
Planalveolitella parasitica tabulate coral |