Big Hollow Wash N (Triassic of the United States)

Where: Apache County, Arizona (35.4° N, 109.4° W: paleocoordinates 11.0° N, 47.9° W)

• coordinate estimated from map

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

• lower part of member; has also been assigned to Bluewater Creek Fm.

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected in 1937, 1946; 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: taxonomic analysis

PaleoDB collection 92912: authorized by Richard Butler, entered by Richard Butler on 08.12.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

Osteichthyes
 Ceratodontiformes - Arganodontidae
Arganodus sp. Martin 1979 Australian lungfish
Amphibia
 Temnospondyli - Metoposauridae
"Buettneria perfecta" = Anaschisma browni
"Buettneria perfecta" = Anaschisma browni Branson 1905 tetrapod
USNM 15837, interclavicle. USNM 15838, fragmentary skull
Reptilia
 Pseudosuchia - Stagonolepididae
"Stagonolepis wellesi" = Calyptosuchus wellesi
"Stagonolepis wellesi" = Calyptosuchus wellesi Long and Ballew 1985 aetosaur
USNM 18313, paramedian scutes and partial ilium
 Phytosauria - Parasuchidae
Leptosuchus sp. Case 1922 archosaur
USNM 15860, vertebrae and pelvic elements. USNM 18313, relatively complete postcranium