Cashen Ranch (MCZ) (Cretaceous to of the United States)

Where: Big Horn County, Montana (45.4° N, 108.2° W: paleocoordinates 44.9° N, 59.8° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Little Sheep Mudstone Member (Cloverly Formation), Aptian to Aptian (125.0 - 100.5 Ma)

• upper part of Unit V (= Little Sheep Mudstone Member), Cloverly Fm.

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected in 1974; reposited in the MCZ

Collection methods: quarrying, mechanical,

Primary reference: J. H. Ostrom. 1976. On a new specimen of the Lower Cretaceous theropod dinosaur Deinonychus antirrhopus. Breviora 439:1-21 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 34746: authorized by Matthew Carrano, entered by Matthew Carrano on 19.09.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

 Avetheropoda - Dromaeosauridae
Deinonychus antirrhopus Ostrom 1969 coelurosaur
MCZ 4371