Where: Richardson County, Nebraska (41.1° N, 95.7° W: paleocoordinates 0.6° N, 26.0° W)
• coordinate stated in text
When: Streptognathodus wabaunsensis conodont zone, Hughes Creek Shale Member (Foraker Limestone Formation), Melekhovian (300.2 - 298.9 Ma)
• Late Gzhelian, Melekhovian Substage from 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 124480: authorized by John Alroy, entered by Briony Mamo on 16.02.2012
Creative Commons license: CC BY (attribution)
Taxonomic list
Crinoidea | |
Triceracrinus sp. Bramlette 1943 Sea lily | |
Graffhamicrinus boellstorffi Pabian and Strimple 1974 Sea lily | |
| |
Paramphicrinus sp. Strimple and Moore 1971 Sea lily |