Where: Ste. Genevieve County, Missouri (37.8° N, 90.1° W: paleocoordinates 28.3° S, 54.1° W)

• coordinate stated in text

When: Moccasin Springs Formation (Bainbridge Group), Ludlow (427.4 - 423.0 Ma)

• ...crinoid specimens came from a single zone with abundant Pisocrinus. Based on the association of Hagnocrinus with Pisocrinus at these localities, the crinoids are regarded as coming from the basal Moccasin Springs Formation and hence are likely Early Ludlovian in age.

•The St Clair Limestone is overlain by the Moccasin Springs Fm.

Environment/lithology: marine; limestone

Size classes: macrofossils, mesofossils

Collected by J.R. Ball; reposited in the FMNH, SUI

Primary reference: T. J. Frest and H. L. Strimple. 1977. Hirneacrinidae (new), simple Silurian camerate crinoids from the North American continental interior. Journal of Paleontology 51:1181-1200 [G. Webster/G. Webster]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 131963: authorized by John Alroy, entered by Briony Mamo on 03.08.2012

Creative Commons license: CC BY (attribution)