Also known as San Andres Range, San Andres Mountains
Where: Sierra County, New Mexico (33.2° N, 106.7° W: paleocoordinates 13.0° S, 89.8° W)
• coordinate estimated from map
• small collection-level geographic resolution
When: Cooks Formation (El Paso Group), Demingian (485.4 - 478.6 Ma)
• "first endoceroid zone of the El Paso limestone" (Flower, 1964 p. 103); "The first endoceroid zone is distinguished as the Cooks formation [...] " (ibid. p. 148) actually refers to the rocks exposed in the Cook(e)s Range in Luna Co., NM; In fig. 50 the 1st endoceroid zone of the Cook(e)s Range section corresponds to interval A of Cloud & Barnes (1946, Univ. Texas Publ. 4621) and to the lower part of the Gorman Fm. (= Hag Hills Fm. in Goldhammer et al., 1993, J. Sed. Petr. 63(3)) of the southern Franklin Mts., El Paso Co., TX., and is referred to the middle Canadian.
• member-level stratigraphic resolution
Environment/lithology: perireef or subreef; shelly/skeletal grainstone
Size class: macrofossils
Preservation: cast
Collection methods: NMBM = collections of New Mexico Bureau of Mines and Mineral Resources
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 88833: authorized by Björn Kröger, entered by Torsten Liebrecht on 22.04.2009
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
Rioceras expansum n. sp., ? Rioceras depressum n. sp.
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