Where: Adams County, Iowa (41.0° N, 94.8° W: paleocoordinates 1.2° S, 26.5° W)
• coordinate stated in text
When: Streptognathodus virgilicus conodont zone, Ervine Creek Limestone Member (Deer Creek Limestone Formation), Rusavkinian (303.7 - 302.2 Ma)
• Early Gzhelian, Rusavkin Substage from Russian Platform
Environment/lithology: marine; limestone
Size class: mesofossils
Reposited in the USNM
Primary reference: R. K. Pabian and W. J. Rushlau. 2002. Taphonomic Analysis and Systematic Descriptions of Some Late Pennsylvanian and Early Permian Crinoids from Southeastern Nebraska, Eastern Kansas and Southwestern Iowa. Nebraska Geological Survey Paper Geological Survey Papers 20:1-45 [J. Alroy/B. Mamo/P. Wagner]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 124490: authorized by John Alroy, entered by Briony Mamo on 16.02.2012
Creative Commons license: CC BY (attribution)
Taxonomic list
Crinoidea | |
Galateacrinus gossameri Pabian and Strimple 1974 Sea lily |