Where: Michigan (42.1° N, 83.6° W)
• Paleocoordinates: 30.6° S, 50.5° W (Wright 2013)
• 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: CC0 (CC0)
Taxonomic list
unclassified | |
Trilobita | |
"Phacops rana" = Eldredgeops rana
"Phacops rana" = Eldredgeops rana Green 1832 trilobite | |
Ostracoda | |
Adelphobolbina spicata, Adelphobolbina trilobata, Hanaites platus, Ctenoloculina eurybathrota, Ctenoloculina acanthina, Ctenoloculina cicatricosa, Falsipollex lativelatus, Falsipollex laxivelatus, Subligaculum bifidum, Subligaculum scrobiculatum
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Stictobollia alethaae, Ulrichia conradi, Ulrichia illinearis, Ulrichia spinifera, Ulrichia fragilis, Ulrichia fastidiosa, Xystinotus subnodatus, Xystinotus wrightorum, Tetrastorthynx diabolicus
Ulrichia fastidiosa Kesling and Chilman 1978 ostracod Soft shales of the Styliolina beds, Units 9-11
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Kirkbyella (Berdanella) unicornis, Kirkbyella (Berdanella) stewartae, Kirkbyella (Kirkbyella) bellipuncta
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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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Hollinella (Keslingella) labrosa, Hollinella (Keslingella) pumila, Hollinella (Keslingella) antespinosa, Tetrasacculus bilobus
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Arcyzona homalosagenota, Arcyzona rhabdota, Arcyzona bythiclimacota, Arcyzona diademata, Arcyzona campylactinota
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Hypotetragona fractodorsalis, Hypotetragona harrietensis, Hypotetragona aequitalis, Knoxiella rutkowskiae, Knoxiella truncata
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Eukloedenella doverensis, Punctoprimitia simplex, Poloniella cingulata, Dizygopleura trisinuata, Dizygopleura euglyphea
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Healdia medusaensis, Healdia arkonensis, Healdia gibba, Cytherellina lucasensis, Cytherellina subquadrata, Cytherellina tanymeka, Cytherellina lechria, Cytherellina kutasii, Ponderodictya ohioensis, Ponderodictya punctulifera, Ponderodictya rhodesi, Nannohealdia arcuata
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Quasillites sublunatus, Quasillites obliquus, Quasillites fordei, Quasillites concentricus, Jenningsina catenulata
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Rugocytherellina ehlersi, Bairdiocypris transptyxis, Bairdiocypris gongylus, Praepilatina silicensis
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Octonaria laevilitata, Octonaria quadricostata, Octonaria crescentiformis, Euglyphella compressa, Euglyphella projecta, Euglyphella sigmoidalis, Euglyphella lispa, Euglyphella modesta
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Malacostraca | |
Tentaculita | |
Nowakia sp. Gurich 1896 | |
Styliolina fissurella Hall 1879 | |
Gastropoda | |
Platyceras (Platyceras) rarispinum, Platyceras (Platyceras) carinatum, Platyceras (Platyceras) bucculentum
Platyceras (Platyceras) rarispinum Hall 1859 snail
Platyceras (Platyceras) carinatum Hall 1862 snail
Platyceras (Platyceras) bucculentum Hall 1862 snail | |
Nodonema sp. Linsley 1968 snail | |
"Loxonema hamiltoniae" = Palaeozygopleura hamiltoniae
"Loxonema hamiltoniae" = Palaeozygopleura hamiltoniae Hall 1859 snail | |
Lophophorata | |
Tentaculites bellulus Hall 1876 | |
Rhynchonellata | |
"Ambocoelia" "umbonata" Conrad 1842 | |
Spinocyrtia "euryteines", "Brachyspirifer audaculus" = Mediospirifer audaculus
"Brachyspirifer audaculus" = Mediospirifer audaculus Conrad 1842 | |
Rhipidomella vanuxemi Hall 1857 | |
Pseudoatrypa cf. devoniana Webster 1921 | |
Callipleura cf. nobilis Hall 1860 | |
Cranaena romingeri Hall 1863 | |
Tropidoleptus carinatus Conrad 1839 | |
Strophomenata | |
Protoleptostrophia perplana Conrad 1839 | |
"Strophodonta erratica" = Strophomena (Strophodonta), "Strophodonta extenuata" = Strophomena (Strophodonta), "Strophodonta "demissa"" = Strophodonta (Strophodonta) demissa, Strophodonta titan, Pholidostrophia geniculata, Pholidostrophia gracilis, Pholidostrophia nacrea, Pholidostrophia sp., Megastrophia concava
"Strophodonta erratica" = Strophomena (Strophodonta)
"Strophodonta extenuata" = Strophomena (Strophodonta)
"Strophodonta "demissa"" = Strophodonta (Strophodonta) demissa Conrad 1842
Strophodonta titan Imbrie 1959
Pholidostrophia sp. Hall and Clarke 1892 | |
"Orthopleura "sp. B Imbrie"" = Imbriea
"Orthopleura "sp. B Imbrie"" = Imbriea Reily 2020 | |
Spinulicosta spinulicosta Hall 1857 | |
Devonalosia wrightorum Muir-Wood and Cooper 1960 | |
Stenolaemata | |
Fistuliporidae indet. Ulrich 1882 | |
Semicoscinium sp. Prout 1859 | |
Intrapora sp. Hall 1883 | |
Gymnolaemata | |
Crinoidea | |
Gilbertsocrinus ohioensis Sea lily | |
Gennaeocrinus chilmanae Sea lily | |
Arthroacantha carpenteri Sea lily | |
Blastoidea | |
Hyperoblastus reimanni blastoid | |
Anthozoa | |
Planalveolitella parasitica tabulate coral
Aulopora microbuccinata tabulate coral | |
Aulocystis auloporoidea tabulate coral
Aulocystis jacksoni tabulate coral
Aulocystis lucasensis 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 | |
Bethanyphyllum robustum horn coral | |
Heterophrentis simplex horn coral | |
Kavaryella cracens | |
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