Collection 8919, Dragoon Mnts., Mississippian Escabrosa Limestone; Arizona (Carboniferous of the United States)

Where: Cochise County, Arizona (31.7° N, 109.7° W: paleocoordinates 10.0° S, 52.3° W)

• small collection-level geographic resolution

When: Mississippian (358.9 - 323.2 Ma)

• Underlain by Martin limestone and overlain by the Naco group.

Environment/lithology: shelly/skeletal limestone

• The charactersitic rocks of the Escabrosa are white to light-gray, commonly composed largely of fragments of crinoid stems.

Primary reference: J. Gilluly, J. R. Cooper, and J.S. Williams. 1954. Late Paleozoic Stratigraphy of Central Cochise County arizona. United States Geological Survey Professional Paper 266:1-49 [T. Olszewski/M. Gibson/P. Wagner]more details

PaleoDB collection 13248: authorized by Tom Olszewski, entered by Melissa Gibson on 02.02.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

• Also includes crinoid stems.
Rhynchonellata
 Spiriferinida - Punctospiriferidae