Blue Mesa NW (UCMP V82244, PFV 113) (Triassic of the United States)

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

• coordinate stated in text

• small collection-level geographic resolution

When: Blue Mesa Member (Chinle Formation), Norian (228.0 - 208.5 Ma)

• Long & Murry (1995) listed this as "lower Petrified Forest"; Parker & Irmis (2005: fig. 8) show this as in the upper part of the Blue Mesa Member

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; siltstone

• "variegated siltstone bed"

Size class: macrofossils

Collected by UCMP in 1982; 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/P. Wagner]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 93118: authorized by Richard Butler, entered by Richard Butler on 05.01.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

Osteichthyes
 Ceratodontiformes - Arganodontidae
Arganodus sp. Martin 1979 Australian lungfish
 Dicynodontia - Stahleckeriidae
? Placerias sp. Lucas 1904 dicynodont
UCMP, radius with tooth marks
Reptilia
 Phytosauria - Parasuchidae
Leptosuchus sp. Case 1922 archosaur
UCMP, left and right squamosals, partial scapula, ilium, scute
 Pseudosuchia - Stagonolepididae
"Stagonolepis wellesi" = Calyptosuchus wellesi
"Stagonolepis wellesi" = Calyptosuchus wellesi Long and Ballew 1985 aetosaur
UCMP 126947, knob of paramedian scute
Amphibia
 Temnospondyli - Metoposauridae
"Buettneria perfecta" = Anaschisma browni
"Buettneria perfecta" = Anaschisma browni Branson 1905 tetrapod
UCMP, mandible and plate fragments