Where: Weston County, Wyoming (44.0° N, 104.6° W: paleocoordinates 43.6° N, 64.9° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Dunveganoceras pondi ammonoid zone, Greenhorn Formation, Late/Upper Cenomanian (99.6 - 93.5 Ma)

• Lower part of the Greenhorn Formation

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, concretionary, calcareous siliciclastic sediments

Size class: macrofossils

Preservation: concretion

Collected by W.A. Cobban in 1964; reposited in the USNM

Primary reference: W. J. Kennedy and W. A. Cobban. 1990. Cenomanian micromorphic ammonites from the western interior of the USA. Palaeontology 33:379-422 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 167810: authorized by Matthew Clapham, entered by Matthew Clapham on 03.04.2015

Creative Commons license: CC BY (attribution)