Stull Shale, Ace Hill (Loc. 4) (Carboniferous of the United States)

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), Rusavkian (303.4 - 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
 Ampelocrinida - Calceolispongiidae
Allosocrinus bronaughi Strimple 1949 Sea lily
 Dendrocrinida - Stellarocrinidae
Stellarocrinus stillativus White 1880 Sea lily
 Dendrocrinida - Pirasocrinidae
Plaxocrinus crassidiscus Miller and Gurley 1894 Sea lily
Vertigocrinus parilis Moore and Plummer 1940 Sea lily
 Dendrocrinida - Exocrinidae
Exocrinus multirami Strimple 1949 Sea lily
 Dendrocrinida - Aesiocrinidae
Adacrinus edema n. sp. Pabian and Rushlau 2002 Sea lily
Aesiocrinus detrusus Strimple 1951 Sea lily
classification uncertain
Polusocrinus rosa Strimple 1951 Sea lily
 Dendrocrinida - Catacrinidae
Delocrinus vulgatus Moore and Plummer 1940 Sea lily
Graffhamicrinus magnijkus Strimple 1947 Sea lily
Graffhamicrinus subcoronatus Moore and Plummer 1940 Sea lily
 Dendrocrinida - Anobasicrinidae
Sciadiocrinus humilis Strimple 1951 Sea lily
 Dendrocrinida - Cromyocrinidae
Parulocrinus blairi Miller and Gurley 1893 Sea lily
classification uncertain
Aglaocrinus compactus Moore and Plummer 1940 Sea lily