Clay Hills Pass (Triassic of the United States)

Where: San Juan County, Utah (37.4° N, 110.3° W: paleocoordinates 13.1° N, 48.3° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Chinle Formation, Norian (228.0 - 208.5 Ma)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; brown, green, red shale and lenticular, gray, calcareous sandstone

• "Shales, brown, red, green, ash, and purple, with many balls and short lenses of limestone conglomerate and a few lenses of gray calcareous sandstone; some dinosaur (?) bones; weathers as a brightly variegated slope and marl-like material."

Size class: macrofossils

Collected by H. Gregory

Collection methods: surface (float),

Primary reference: H. E. Gregory. 1936. The San Juan country. A geographic and geologic reconnassance of southeastern Utah. United States Geological Survey Professional Paper 188:v-123 [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 67996: authorized by Matthew Carrano, entered by Matthew Carrano on 20.12.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Reptilia
 Dinosauria -
? Dinosauria indet.