Where: El Paso County, Texas (32.0° N, 106.5° W: paleocoordinates 17.3° S, 76.8° W)

• coordinate estimated from map

• basin-level geographic resolution

When: Aphelognathus grandis conodont zone, Cutter Formation (Montoya Group), Richmondian (449.6 - 445.5 Ma)

• Statigraphy first described in Howe 1965. Cincinnatian.

• formation-level stratigraphic resolution

Environment/lithology: shelly/skeletal limestone

Size class: macrofossils

Preservation: replaced with silica

Reposited in the USNM

Primary reference: H. J. Howe. 1967. Rhynchonellacea From the Montoya Group (Ordovician) of Trans-Pecos Texas. Journal of Paleontology 41(4):845-860 [S. Holland/T. Hanson]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 165279: authorized by Pete Wagner, entered by Pete Wagner on 16.01.2015

Creative Commons license: CC BY (attribution)