Where: El Paso County, Texas (31.8° N, 106.5° W: paleocoordinates 17.2° S, 78.6° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Oulodus robustus conodont zone, Aleman Formation (Montoya Group), Maysvillian (450.2 - 449.6 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: deep subtidal; lithified, argillaceous, cherty/siliceous dolomite

Size class: macrofossils

Preservation: replaced with silica

Reposited in the USNM

Primary reference: H. J. Howe. 1965. Dalmanellidae from the Montoya Group (Ordovician) of Trans-Pecos Texas. Journal of Paleontology 39(2):235-247 [S. Holland/S. Holland/S. Holland]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 165280: authorized by Pete Wagner, entered by Pete Wagner on 16.01.2015

Creative Commons license: CC BY (attribution)