Sawmill Canyon, near Onyx Mine, Santa Rita Mountains (Permian of the United States)

Where: Arizona (31.7° N, 110.8° W: paleocoordinates 3.8° N, 39.0° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Cisuralian (298.9 - 272.3 Ma)

• Unnamed "Lower Permian" formation

• group of beds-level stratigraphic resolution

Environment/lithology: lithified limestone

Size class: macrofossils

Collected by R.E. King, P.B. King in 1925-1928; reposited in the YPM

Primary reference: R. E. King. 1931. The Geology of the Glass Mountains, Texas, Part II, Faunal summary and correlation of the Permian formations with description of Brachiopoda. The University of Texas Bulletin 3042:1-245 [T. Olszewski/L. Fall/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 151303: authorized by Matthew Clapham, entered by Matthew Clapham on 26.09.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Rhynchonellata
 Rhynchonellida - Pontisiidae
Pontisia sp. Cooper and Grant 1969