Pierce Canyon (Ordovician of the United States)

Also known as near Lake Valley, Sierra Co., NM

Where: Sierra County, New Mexico (32.8° N, 107.7° W: paleocoordinates 12.3° S, 90.5° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Sierrite Formation (El Paso Group), Gasconadian (485.4 - 477.7 Ma)

• "from the lower 15 feet of the El Paso [...]" (p. 63); "From the lower Sierrite beds of the El Paso group, 10 to 15 feet above the top of the Bliss-El Paso contact." (explanation of plate 15 fig. 6).

• group of beds-level stratigraphic resolution

Environment/lithology: limestone

• "The lower Canadian portion [of the El Paso succession] consists largely of thin bedded limestones, with wavy bedding, in which solution along bedding planes was involved." (p. 146)

Size class: macrofossils

Preservation: cast

Reposited in the USNM

• RHF = collection of Rousseau H. Flower, transferred to the Smithsonian Institution/U.S. National Museum (see Wolberg, 1990, J. Paleont. 64(3, 5, 6))

Primary reference: R. H. Flower. 1964. The Nautiloid Order Ellesmeroceratida (Cephalopoda). State Bureau of Mines and Mineral Resources New Mexico Institute of Mining and Technology, Memoir 12:234 p. [B. Kröger/T. Liebrecht/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 88875: authorized by Björn Kröger, entered by Torsten Liebrecht on 23.04.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Cephalopoda
 Ellesmerocerida - Ellesmeroceratidae
Dakeoceras sp.
Dakeoceras sp. Ulrich and Foerste 1931
RHF 227