Kaye Quarry PFV 410, UWBM C2226 (Triassic of the United States)

Where: Arizona (35.1° N, 109.8° W: paleocoordinates 10.7° N, 48.3° W)

• coordinate based on political unit

When: Adamanian other zone, Sonsela Member (Chinle Formation), Norian (228.0 - 208.5 Ma)

• the quarry lies near the base of the Jim Camp Wash Beds (Sonsela Member, Chinle Formation) but its position relative to the "persistent red silcrete" approximating the Adamanian-Revueltian boundary has been difficult to establish. The vertebrate assemblage suggests that the site may be in the Adamanian land vertebrate holochronozone

Environment/lithology: terrestrial; mudstone

• mottled purple mudstone with reduction halos commonly around fossils and occasional extra-basinal clasts.

Size class: macrofossils

Primary reference: G. S. Gonçalves and C. A. Sidor. 2019. A new drepanosauromorph, Ancistronychus paradoxus n. gen. et sp.,from the Chinle Formation of Petrified Forest National Park, Arizona, USA. PaleoBios 36:1-10 [P. Holroyd/P. Holroyd/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 207035: authorized by Patricia Holroyd, entered by Patricia Holroyd on 15.12.2019, edited by Bryan Gee

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Diapsida -
Ancistronychus paradoxus n. gen. n. sp.
Ancistronychus paradoxus n. gen. n. sp. Gonçalves and Sidor 2019 diapsid
 Saurischia -
Saurischia indet. Seeley 1888 saurischian
PEFO 42987/ UWBM 117640, left femur (distal end)
 Theropoda -
Theropoda indet. Marsh 1881 theropod
PEFO 39273/ UWBM 108212, left femur (proximal end); PEFO 39422/ UWBM 108882, right tibia (proximal end)
Neotheropoda indet. Bakker 1986 neotheropod
PEFO 39421/ UWBM 108881, right tibia (proximal end); PEFO 39563/ UWBM 109902, left femur (proximal end)
 Dinosauromorpha - Silesauridae
Silesauridae indet. Langer et al. 2010 ornithodiran
PEFO 39373/ UWBM 108379, left femur (proximal end)