Fish Canyon Road, Santa Cruz County (Permian of the United States)

Where: Arizona (31.8° N, 110.8° W: paleocoordinates 6.0° N, 38.0° W)

• 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: CC BY (attribution)

Taxonomic list

Chondrichthyes
 Petalodontiformes - Pristodontidae
Megactenopetalus kaibabanus David 1944 chimaera