Round Rock 2 (UCMP A274) (Triassic of the United States)

Where: Apache County, Arizona (36.5° N, 109.4° W: paleocoordinates 12.1° N, 47.7° W)

• coordinate estimated from map

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 UCMP in 1927; 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 93474: authorized by Richard Butler, entered by Richard Butler on 19.01.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

Amphibia
 Temnospondyli - Metoposauridae
Metoposauridae indet. Watson 1919 tetrapod
Reptilia
 Phytosauria - Parasuchidae
"Pseudopalatinae indet." = Mystriosuchini
"Pseudopalatinae indet." = Mystriosuchini Huene 1915 archosaur
UCMP 27216, right squamosal