CWG 1937/13, Billings Gap, (PFV 54) (Triassic of the United States)

Also known as PV54

Where: Apache County, Arizona (34.9° N, 109.7° W: paleocoordinates 10.6° N, 48.2° W)

• coordinate based on nearby landmark

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

• "Upper Petrified Forest Formation"; now known as the Petrified Forest Member (Woody 2003) or the Painted Desert Member of the Petrified Forest Formation (Heckert & Lucas 2002).

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected by C. W. Gilmore in 1937; reposited in the USNM

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/P. Wagner]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 93430: authorized by Richard Butler, entered by Richard Butler on 19.01.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Pseudosuchia - Stagonolepididae
Typothorax coccinarum Cope 1875 aetosaur
USNM, paramedian plate
Paratypothorax sp. Long and Ballew 1985 aetosaur
USNM, paramedian plate
 Phytosauria - Parasuchidae
"Pseudopalatinae indet." = Mystriosuchini
"Pseudopalatinae indet." = Mystriosuchini Huene 1915 archosaur
USNM 15839, skull missing end of snout. USNM 15840, posterior half of skull. USN 15831, lower jaws
Amphibia
 Temnospondyli - Metoposauridae
"Buettneria perfecta" = Anaschisma browni
"Buettneria perfecta" = Anaschisma browni Branson 1905 tetrapod
USNM, 15842, clavicle and interclavicle. USNM 15862, interclavicle