Where: Niobrara County, Wyoming (43.5° N, 104.6° W: paleocoordinates 50.0° N, 79.3° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Lance Formation, Late/Upper Maastrichtian (70.6 - 66.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected by C. H. Sternberg and party in 1910; reposited in the MNHN

Collection methods: quarrying, surface (in situ), mechanical,

• collected by C. H. Sternberg and party, sold to MNHN via Marcelin Boule

Primary reference: J.-G. Michard. 1986. Histoire de la découverte du spécimen d'Anatosaurus (Dinosaure, Hadrosauridé) vendu au Muséum d'Histoire Naturelle de Paris en 1911 [History of the discovery of a specimen of Anatosaurus (Dinosauria, Hadrosauridae) sold to the Museum of Natural History in Paris in 1911]. Annales de Paléontologie (Vert.-Invert.) 72(2):142-154 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 54176: authorized by Matthew Carrano, entered by Matthew Carrano on 26.09.2005

Creative Commons license: CC BY (attribution)