Where: Kansas (37.4° N, 96.5° W: paleocoordinates 1.6° S, 28.1° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Eskridge Formation, Asselian (298.9 - 295.5 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: coastal; lithified shale

Size class: macrofossils

Primary reference: R. T. Jackson. 1912. Phylogeny of the Echini, with a revision of Palaeozoic species. Memoirs of the Boston Society of Natural History 7:1-491 [L. Villier/L. Villier]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 110407: authorized by Matthew Clapham, entered by Matthew Clapham on 07.06.2011

Creative Commons license: CC BY (attribution)