East Creek tracksite (Jurassic to of the United States)

Where: Mesa County, Colorado (38.9° N, 108.5° W: paleocoordinates 34.9° N, 55.2° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Morrison Formation, Kimmeridgian to Kimmeridgian (157.3 - 145.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; limestone and mudstone

Size class: macrofossils

Preservation: cast, trace

Collected by A. Look

Collection methods: surface (in situ),

Primary reference: J. R. Foster and M. G. Lockley. 2006. The vertebrate ichnological record of the Morrison Formation (Upper Jurassic, North America). In J. R. Foster, S. G. Lucas (eds.), Paleontology and Geology of the Upper Jurassic Morrison Formation. New Mexico Museum of Natural History and Science Bulletin 36:203-216 [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 61890: authorized by Matthew Carrano, entered by Matthew Carrano on 06.07.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Theropoda -
Theropoda indet. Marsh 1881 theropod
large tracks