Alexander Wash, UCMP 7034 (Triassic of the United States)

Also known as Lithodendron Wash, Adamana

Where: Navajo County, Arizona (35.0° N, 109.9° W: paleocoordinates 10.7° N, 48.4° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

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

• lower part of member

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected by C. Camp, L. Kellogg, A. Alexander in 1921

Collection methods: quarrying, surface (in situ),

Primary reference: D. D. Gillette, S. R. Ash, and R. A. Long. 1986. Paleontology of the Petrified Forest National Park, Arizona. In J. D. Nations, C. M. Conway, & G. A. Swann (eds.), Geology of Central and Northern Arizona. Field Trip Guidebook for Geological Society of America Rocky Mountain Section Meeting 58-69 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 192008: authorized by Matthew Carrano, entered by Matthew Carrano on 28.02.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Phytosauria - Parasuchidae
"Machaeroprosopus lithodendrorum n. sp." = Smilosuchus lithodendrorum
"Machaeroprosopus lithodendrorum n. sp." = Smilosuchus lithodendrorum Camp 1930 archosaur
UCMP 26688, poorly preserved skull and postcrania