Where: Larimer County, Colorado (40.9° N, 105.1° W: paleocoordinates 47.3° N, 74.3° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Baculites reesidei ammonoid zone, Larimer Sandstone Member (Pierre Shale Formation), Late/Upper Campanian (83.5 - 70.6 Ma)

• "latest Campanian or earliest Maastrichtian" based on zonal assignment (actually very late Campanian: see McArthur et al. 2007)

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified siliciclastic sediments

Size class: macrofossils

Collected by G. R. Scott, W. A. Cobban; reposited in the USGS

Primary reference: G. A. Bishop. 1985. A new crab, Eomunidopsis cobbani n. sp. (Crustacea, Decapoda), from the Pierre Shale (Early Maastrichtian) of Colorado. Journal of Paleontology 59(3):601-604 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 90153: authorized by John Alroy, entered by John Alroy on 09.07.2009, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)