Section B-1. Bed 08. East-facing escarpment, Baylor Mountains (Ordovician of the United States)

Where: Culberson County, Texas (31.2° N, 104.8° W: paleocoordinates 18.8° S, 78.3° W)

• coordinate stated in text

• outcrop-level geographic resolution

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

• Statigraphy first described in Howe 1965. Cincinnatian.

• group of beds-level stratigraphic resolution

Environment/lithology: limestone

• Calcilutite

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 165299: authorized by Pete Wagner, entered by Pete Wagner on 17.01.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

• Cobbled from 4 taxonomic papers.
Rhynchonellata
 Rhynchonellida - Rhynchotrematidae
Lepidocyclus sp., "? Lepidocyclus capax" = Hiscobeccus capax
Lepidocyclus sp. Wang 1949
"? Lepidocyclus capax" = Hiscobeccus capax Conrad 1842
 Orthida - Platystrophiidae
"Platystrophia prayi" = Gnamptorhynchos prayi
"Platystrophia prayi" = Gnamptorhynchos prayi Howe 1966