YPM 64-75, Edwards Ranch (Cretaceous of the United States)

Where: Carbon County, Montana (45.2° N, 108.8° W: paleocoordinates 44.6° N, 63.4° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Himes Member (Cloverly Formation), Albian (113.0 - 100.5 Ma)

• upper part of member = Ostrom's Unit VII; 14-17 ft above Unit VI

• bed-level stratigraphic resolution

Environment/lithology: fluvial-lacustrine; claystone

Size classes: macrofossils, mesofossils

Collected by J. H. Ostrom in 1964, 1993; reposited in the YPM

Collection methods: quarrying, mechanical,

• quarry reopened in 1993 by MOR

Primary reference: Anonymous. 1965. Paleontology. The dinosaur's claws. Yale Alumni Magazine 1965:17 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 50707: authorized by Matthew Carrano, entered by Matthew Carrano on 19.05.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

 Avetheropoda - Dromaeosauridae
Deinonychus antirrhopus n. gen. n. sp.
Deinonychus antirrhopus n. gen. n. sp. Ostrom 1969 coelurosaur
 Neornithischia -
Tenontosaurus tilletti Ostrom 1970 bird foot dinosaur
YPM 5466