Derby Junction, DMNH loc. 692 (Triassic to of the United States)

Where: Garfield County, Colorado (39.9° N, 106.9° W: paleocoordinates 15.8° N, 45.4° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Chinle Formation, Norian to Norian (228.0 - 201.3 Ma)

• "The tetrapod assemblage is regarded as middle–late Norian in age (Revueltian land vertebrate faunachron)" - Pardo et al. (2017)

•From the informally named "red siltstone member"

• bed-level stratigraphic resolution

Environment/lithology: coarse channel fill; lithified, red siltstone and conglomerate

• "Indurated red siltstone"

Size class: macrofossils

Reposited in the DMNH

Collection methods: surface (in situ),

Primary reference: J. W. Martz and B. J. Small. 2019. Non-dinosaurian dinosauromorphs from the Chinle Formation (Upper Triassic) of the Eagle Basin, northern Colorado: Dromomeron romeri (Lagerpetidae) and a new taxon, Kwanasaurus williamparkeri (Silesauridae). PeerJ 7:e7551:1-71 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 206267: authorized by Matthew Carrano, entered by Matthew Carrano on 06.11.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

 Dinosauromorpha - Silesauridae
Kwanasaurus parkeri ornithodiran
DMNH EPV.34579 (femur)