Where: Floyd County, Iowa (43.1° N, 93.0° W: paleocoordinates 29.2° S, 37.6° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Cerro Gordo Member (Lime Creek Formation), Frasnian (382.7 - 372.2 Ma)
• several beds in the middle of the member
• group of beds-level stratigraphic resolution
Environment/lithology: marine; calcareous shale
Collection methods: field collection of Ager
Primary reference: P. Wallace. 1978. Homeomorphy between Devonian brachiopod communities in France and Iowa. Lethaia 11:259-272 [J. Alroy/J. Alroy]more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 3403: authorized by John Alroy, entered by John Alroy on 31.07.1999, edited by Alycia Stigall and Pete Wagner
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Cranaenella sp., "Metazoa indet." = Animalia
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Anthozoa | |
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Crinoidea | |
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Gastropoda | |
""Bellerophontoidea" indet." = Bellerophontoidea2
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"Floyda gigantea" = Floyda concentrica
"Floyda gigantea" = Floyda concentrica Webster 1905 snail 2.9%: originally entered as "Floydia gigantea"
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"Diaphorostoma antiquum" = Platyostoma antiquuis
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Bivalvia | |
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Strophomenata | |
Productella rugatula1 Stainbrook 1945
Productella thomasi1 Stainbrook 1945 | |
"Strophodonta thomasi" = Strophomena (Strophodonta), "Strophodonta biplacata" = Strophomena (Strophodonta)1
"Strophodonta thomasi" = Strophomena (Strophodonta) 0.4%: originally entered as "Stropheodonta thomasi"
"Strophodonta biplacata" = Strophomena (Strophodonta)1 | |
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Rhynchonellata | |
"Schizophoria iowaensis" = Schizophoria (Schizophoria) iowensis
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Tylothyris mesacostalis1 Hall 1867 | |
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Cupularostrum sp.1 Sartenaer 1961 | |
Stenolaemata | |
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