Where: Cass County, Nebraska (41.0° N, 95.9° W: paleocoordinates 0.8° S, 27.2° W)
When: Streptognathodus vitali conodont zone, Stull Shale Member (Kanwaka Formation), Rusavkinian (303.7 - 302.2 Ma)
• Lower Gzhelian, correlative to Rusavkian of Russian Platform.
Environment/lithology: marine; shale
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 124407: authorized by John Alroy, entered by Briony Mamo on 14.02.2012
Creative Commons license: CC BY (attribution)
Taxonomic list
| Crinoidea | |
|
Allosocrinus bronaughi Strimple 1949 Sea lily | |
|
Stellarocrinus stillativus White 1880 Sea lily | |
|
Exocrinus multirami Strimple 1949 Sea lily | |
|
Graffhamicrinus subcoronatus Moore and Plummer 1940 Sea lily
Graffhamicrinus magnijkus Strimple 1947 Sea lily
Delocrinus vulgatus Moore and Plummer 1940 Sea lily | |
|
Sciadiocrinus humilis Strimple 1951 Sea lily | |
|
Polusocrinus rosa Strimple 1951 Sea lily
Adacrinus edema n. sp. Pabian and Rushlau 2002 Sea lily | |
|
Vertigocrinus parilis Moore and Plummer 1940 Sea lily
Plaxocrinus crassidiscus Miller and Gurley 1894 Sea lily | |
|
Aglaocrinus compactus Moore and Plummer 1940 Sea lily | |