Also known as Cimarron

Where: Colfax County, New Mexico (36.5° N, 104.9° W: paleocoordinates 43.4° N, 81.7° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Raton Formation, Maastrichtian (72.1 - 66.0 Ma)

• upper part of formation, 20 m below Ir-rich K/T clay layer

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; sandstone

Size class: macrofossils

Preservation: cast, trace

Collected by C. Pillmore in 1983

Collection methods: surface (float), peel or thin section,

Primary reference: M. G. Lockley and A. P. Hunt. 1994. A track of the giant theropod dinosaur Tyrannosaurus from close to the Cretaceous/Tertiary boundary, northern New Mexico. Ichnos 3:213-218 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 53155: authorized by Matthew Carrano, entered by Matthew Carrano on 06.09.2005

Creative Commons license: CC BY (attribution)