Where: Coconino County, Arizona (35.9° N, 111.4° W: paleocoordinates 4.5° N, 39.3° 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
Preservation: mold/impression
Collected by S. Welles in 1938-1966; reposited in the UCMP
Primary reference: R. R. Schoch. 2000. The status and osteology of two new cyclotosaurid amphibians from the Upper Moenkopi Formation of Arizona (Amphibia: Temnospondyli; Middle Triassic). Neues Jahrbuch für Geologie und Paläontologie Abhandlungen 216(3):387-411 [R. Butler/R. Butler]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 95089: authorized by Richard Butler, entered by Richard Butler on 06.04.2010
Creative Commons license: CC BY (attribution)
Taxonomic list
Amphibia | |
Eocyclotosaurus wellesi Schoch 2000 tetrapod UCMP 41343, natural mould of nearly complete skull roof. UCMP 55446, posterior skull table
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