Where: Iowa (42.1° N, 92.1° W: paleocoordinates 30.4° S, 37.5° W)
• coordinate based on political unit
• basin-level geographic resolution
When: Independence Shale Formation, Frasnian (382.7 - 372.2 Ma)
• "Currently there is general agreement that the Independence Shale fauna is a stratigraphic leak of species from all members of the Lime Creek Formation." Nonetheless, there are many species known only from the Independence.
• formation-level stratigraphic resolution
Environment/lithology: marine; shale
Primary reference: J. Day. 1988. The brachiopod succession of the Late Givetian-Frasnian of Iowa. In N. J. McMillan, A. F. Embry, and D. J. Glass (eds.), Devonian of the World, Volume III. Canadian Society of Petroleum Geologists. Calgary, Alberta, Canada 303-325 [M. Foote/M. Foote/M. Foote]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 35502: authorized by Michael Foote, entered by Michael Foote on 17.12.2003, edited by Alycia Stigall
Creative Commons license: CC BY (attribution)
Taxonomic list
Strophomenata | |
"Douvillinaria variabilis" = Strophodonta variabilis, Strophonelloides reversa
"Douvillinaria variabilis" = Strophodonta variabilis Calvin 1878 | |
Nervostrophia extensa Cooper and Dutro 1982
Nervostrophia multinervosa Stainbrook 1945 | |
Sulcatostrophia camerata, "Pseudodouvillina euglyphea" = Sulcatostrophia euglyphea
"Pseudodouvillina euglyphea" = Sulcatostrophia euglyphea Stainbrook 1945 | |
Douvillina arcuata Hall 1858 | |
Productella thomasi Stainbrook 1945 | |
Devonoproductus vulgaris Stainbrook 1945 | |
Eostrophalosia inexpectans, "Strophalosia independensis" = Eostrophalosia independensis
"Strophalosia independensis" = Eostrophalosia independensis Stainbrook 1945 | |
Rhynchonellata | |
Hypothyridina emmonsi Hall and Whitfield 1877 | |
"Aulacella infera" = Stainbrookia infera
"Aulacella infera" = Stainbrookia infera Calvin 1878 | |
Cariniferella iowensis Stainbrook 1945 | |
"Schizophoria iowensis" = Schizophoria (Schizophoria) iowensis, Schizophoria amanaensis
"Schizophoria iowensis" = Schizophoria (Schizophoria) iowensis Hall 1858
Schizophoria amanaensis Stainbrook 1945 | |
Spinatrypa trulla, Spinatrypa occidentalis, "Pseudatrypa devoniana" = Pseudoatrypa devoniana, Iowatrypa americana, "Costatrypa varicostata" = Atryparia (Costatrypa)
"Pseudatrypa devoniana" = Pseudoatrypa devoniana Webster 1921 originally entered as "Pseudoatrypa devoniana"
"Costatrypa varicostata" = Atryparia (Costatrypa) | |
Craniata | |
Petrocrania famelica Hall and Whitfield 1872 | |
Conodonta | |
Palmatolepis foliacea conodont
Palmatolepis semichatovae Ovnatanova 1976 conodont |