Where: Big Horn County, Wyoming (44.7° N, 107.9° W: paleocoordinates 43.8° N, 65.5° W)

• coordinate stated in text

When: Shell Creek Shale Formation, Late/Upper Albian (105.3 - 99.6 Ma)

• An ironstone concretionary bed 57 m (187 ft) above the base of this unit

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, concretionary, ferruginous shale

Size class: macrofossils

Collected by K.M. Waage, D.L. Eicher; reposited in the YPM

Collection methods: surface (float), mechanical

Primary reference: R. M. Feldmann, C. E. Schweitzer, and R. M. Green. 2008. Unusual Albian (Early Cretaceous) Brachyura (Homoloidea: Componocancroidea new superfamily) from Montana and Wyoming, USA. Journal of Crustacean Biology 28(3):502-509 [C. Schweitzer/C. Schweitzer/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 191873: authorized by Matthew Clapham, entered by Matthew Clapham on 18.02.2018

Creative Commons license: CC BY (attribution)