Tanner's Crossing, MNA 491 (Triassic of the United States)

Where: Coconino County, Arizona (35.9° N, 111.4° W: paleocoordinates 11.7° N, 49.4° W)

• coordinate estimated from map

• local area-level geographic resolution

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

• Probably derived from the Cameron Member, also referred to as the Cameron Formation. Some of the material may have been collected from the Shinarump or Blue Mesa members

• member-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collection methods: MNA: Museum of Northern Arizona

Primary reference: A. B. Heckert, S. G. Lucas, and J. W. Estep. 2002. Lower Chinle Group (Upper Triassic: Upper Carnian) tetrapods from the vicinity of Cameron, Arizona. In A. B. Heckert, S. G. Lucas (eds.), Upper Triassic Stratigraphy and Paleontology, New Mexico Museum of Natural History and Science Bulletin 21:73-76 [R. Butler/R. Butler]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 93569: authorized by Richard Butler, entered by Richard Butler on 25.01.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Phytosauria -
"Parasuchia indet." = Phytosauria
"Parasuchia indet." = Phytosauria Jaeger 1828 phytosaur
MNA pl. 691, tooth. MNA pl. 694, distal tibia. MNA Pl. 698, proximal femur. MNA Pl. 699, left femur
Amphibia
 Temnospondyli - Metoposauridae
Metoposauridae indet., "Buettneria perfecta" = Anaschisma browni
Metoposauridae indet. Watson 1919 tetrapod
MNA V. 703, occipital condyle. MNA V. 704, skull fragments
"Buettneria perfecta" = Anaschisma browni Branson 1905 tetrapod
MNA V. 701, skull. MNA V. 705, 706, 707, clavicle and interclavicles