Dolores Valley tracksite (CU-MWC 155) (Triassic of the United States)

Also known as Gateway

Where: Mesa County, Colorado (38.6° N, 108.9° W: paleocoordinates 17.2° N, 48.2° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Wingate Sandstone Formation (Glen Canyon Group), Rhaetian (208.5 - 201.3 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; sandstone

Size class: macrofossils

Preservation: mold/impression, trace

Collection methods: surface (float),

Primary reference: M. G. Lockley, S. G. Lucas, A. P. Hunt and R. Gaston. 2004. Ichnofaunas from the Triassic-Jurassic boundary sequences of the Gateway area, western Colorado: implications for faunal composition and correlations with other areas. Ichnos 11:89-102 [M. Carrano/M. Carrano]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 193012: authorized by Matthew Carrano, entered by Matthew Carrano on 03.05.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

Osteichthyes
 Synapsida -
Synapsida indet. synapsid
CU-MWC 155.54, 155.55
Reptilia
 Theropoda - Grallatoridae
Grallator sp. Hitchcock 1858 theropod
CU-MWC 155.54, 155.55
 Pseudosuchia - Chirotheriidae
Brachychirotherium sp. Beurlen 1950 archosaur
CU-MWC 155.56