Where: Iowa (43.0° N, 93.0° W: paleocoordinates 29.2° S, 37.6° W)
• coordinate based on political unit
• local area-level geographic resolution
When: Juniper Hill Member (Lime Creek Formation), Frasnian (382.7 - 372.2 Ma)
• Member covers both Nervostrophia thomasi and Douvillina arcuata zones. This collection includes samples CG-1 through CG-15, i.e. just below N. thomasi zone to top of this zone.
• member-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 35496: authorized by Michael Foote, entered by Michael Foote on 17.12.2003
Creative Commons license: CC BY (attribution)
Taxonomic list
Rhynchonellata | |
Pseudoatrypa devoniana Webster 1921 | |
"Schizophoria iowensis" = Schizophoria (Schizophoria) iowensis
"Schizophoria iowensis" = Schizophoria (Schizophoria) iowensis Hall 1858 | |
Strophomenata | |
Lingulata | |
Craniata | |
Petrocrania sp. Raymond 1910 |