Where: Navajo County, Arizona (34.9° N, 110.2° W: paleocoordinates 3.2° N, 38.8° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Holbrook Member (Moenkopi Formation), Aegean to Aegean (247.2 - 242.0 Ma)

• Lucas & Schoch (2002: Lethaia 35: 97-106) inferred the Holbrook member to be earliest Anisian (Aegean–Bithynian) in age based upon tetrapod biostratigraphy (Eocyclotosaurus used to correlate Holbrook Member to German Upper Bundsandstein) and magnetostratigraphy

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected by S. Welles in 1949, 1965, 1966; reposited in the UCMP

Primary reference: S. P. Welles. 1969. Collecting Triassic vertebrates in the Plateau Province. Journal of the West 8(2):231-246 [R. Butler/R. Butler] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 95090: authorized by Richard Butler, entered by Richard Butler on 06.04.2010