Where: McKinley County, New Mexico (36.0° N, 108.0° W: paleocoordinates 43.2° N, 79.5° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Fruitland Formation, Late/Upper Campanian (83.5 - 70.6 Ma)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial

Size class: macrofossils

Collected by Sternberg in 1923; reposited in the FMNH

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

Primary reference: J. H. Ostrom. 1961. A new species of hadrosaurian dinosaur from the Cretaceous of New Mexico. Journal of Paleontology 35(3):575-577 [M. Carrano/M. Carrano/M. Carrano] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 51534: authorized by Matt Carrano, entered by Matt Carrano on 07.06.2005