Carrizo Creek tracksite (Jurassic of the United States)

Also known as Kenton, Coopers Arroyo

Where: Cimarron County, Oklahoma (37.0° N, 103.0° W: paleocoordinates 31.6° N, 49.6° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Cimarron Member (Morrison Formation), Kimmeridgian (157.3 - 152.1 Ma)

• orig. assigned to the "brown silt member" of the Morrison Fm. 2 track-bearing layers, then to the Bell Ranch Fm.

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; sandstone and brown siltstone

• "sandy track beds are "mid-cracked" with finer brownish silty interbeds and an overlying conglomeratic sandstone which fills the mudcracks of the upper bed"

Size class: macrofossils

Preservation: mold/impression, trace

Collected by M. Lockley in 1985

Collection methods: surface (in situ),

Primary reference: M. G. Lockley. 1986. A Guide to Dinosaur Tracksites of the Colorado Plateau and American Southwest. University of Colorado at Denver Geology Department Magazine, Special Issue 1:1-56 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 92285: authorized by Richard Butler, entered by Richard Butler on 04.11.2009, edited by Matthew Carrano

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Theropoda -
cf. Gypsichnites sp. Sternberg 1932 theropod
 Theropoda - Grallatoridae
cf. Grallator sp. Hitchcock 1858 theropod
smaller