Canjilon Quarry, UCMP V2816 (Triassic of the United States)

Where: Rio Arriba County, New Mexico (36.3° N, 106.5° W: paleocoordinates 11.5° N, 45.4° W)

• coordinate based on unpublished field data

• outcrop-level geographic resolution

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

• described as "Revueltan" age, Norian; 90 m below contact with Jurassic Entrada Sandstone, 30.8 m below the contact with the Rock Point Member

• bed-level stratigraphic resolution

Environment/lithology: "floodplain"; paleosol/pedogenic, bentonitic, green, red, silty mudstone and green conglomerate

• "bentonitic mudstones that sit just above or are interlayered with an intraformational conglomerate" "purple, red and green mottled mudstone that is locally silty and includes scattered paleocalcrete nodules"

Size class: macrofossils

Collected by C. L. Camp, R. Arrias, H. Anderson, G. Barrington, & S. P. Welles in 1928-1933, 1999-; reposited in the MCZ, UCMP

Collection methods: quarrying, mechanical,

• excavated 1928-1933 by C. L. Camp, R. Arrias, H. Anderson, G. Barrington, and S. P. Welles for UCMP; two specimens of Typothorax collected by Harvard in 1930s

Primary reference: R. A. Long, S. G. Lucas, A. P. Hunt and R. T. McCrea. 1989. Charles Camp: collecting Late Triassic vertebrates in the American southwest during the 1920's and 1930's. In S. G. Lucas and A. P. Hunt (eds.), Dawn of the Age of Dinosaurs in the American Southwest, New Mexico Museum of Natural History, Albuquerque [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 47126: authorized by Matthew Carrano, entered by Matthew Carrano on 14.02.2005, edited by Richard Butler

Creative Commons license: CC BY (attribution)

Taxonomic list

Actinopterygii indet.2 ray-finned fish
UCMP 63920, articulated scales
 Temnospondyli -
Stereospondyli indet.2 tetrapod
UCMP 122455, intercentrum
 Eosuchia - Doswelliidae
Vancleavea campi3 Long and Murry 1995 archosauromorph
GR 148, osteoderm
 Archosauria -
Archosauria indet.2 Cope 1869 archosaur
UCMP 122365. vertebra
 Theropoda -
Theropoda indet.2 theropod
UCMP 152645, partial skeleton. ?UCMP unnumbered, dorsal vertebra
 Pseudosuchia - Stagonolepididae
Typothorax coccinarum4 Cope 1875 archosaur
UCMP 34255, 34248, 34259, partial skeletons. UCMP 34277, paramedian osteoderm
 Pseudosuchia -
Paracrocodylomorpha indet.2 Parrish 1993 archosaur
UCMP 152644, proximal femur
 Phytosauria - Parasuchidae
"Arribasuchus buceros" = Machaeroprosopus buceros1, "Pseudopalatus pristinus" = Machaeroprosopus pristinus1
"Arribasuchus buceros" = Machaeroprosopus buceros1 Cope 1881 archosaur
UCMP V27228, 2816, 34246, 34250, 34258, skulls
"Pseudopalatus pristinus" = Machaeroprosopus pristinus1 Mehl 1928 archosaur
UCMP 27231, 27234, 27235, 34245, 34249, 34251, skulls and skeletons