Lower Billings Gap (UCMP 7042, PF146) (Triassic of the United States)

Where: Apache County, Arizona (34.9° N, 109.8° W: paleocoordinates 10.6° N, 48.3° W)

• coordinate based on nearby landmark

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

• lower part of member

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected by UCMP in 1921; reposited in the UCMP

Primary reference: R. A. Long and P. A. Murry. 1995. Late Triassic (Carnian and Norian) tetrapods from the southwestern United States. New Mexico Museum of Natural History and Science Bulletin 4:1-254 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 93126: authorized by Richard Butler, entered by Richard Butler on 05.01.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Pseudosuchia - Stagonolepididae
"Stagonolepis wellesi" = Calyptosuchus wellesi
"Stagonolepis wellesi" = Calyptosuchus wellesi Long and Ballew 1985 archosaur
UCMP 84916, nearly complete paramedian scute
 Phytosauria - Parasuchidae
Leptosuchus sp. Case 1922 archosaur
UCMP 27017, limb bone fragments