Where: Arizona (31.8° N, 110.8° W)

• Paleocoordinates: 8.5° N, 36.6° W (Wright 2013)

• coordinate stated in text

• small collection-level geographic resolution

When: Concha Formation, Roadian (272.3 - 268.8 Ma)

• Formation contains Parafusulina boesei

Environment/lithology: lithified limestone

Size class: macrofossils

Collected by Harald Drewes in 1966; reposited in the USNM

Primary reference: M. C. Hansen. 1978. A presumed lower dentition and a spine of a Permian petalodontiform chondrichthyan, Megactenopetalus kaibabanus. Journal of Paleontology 52(1):55-60 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 90287: authorized by Matthew Clapham, entered by Matthew Clapham on 15.07.2009

Creative Commons license: CC0 (CC0)