Where: New Mexico (35.8° N, 106.9° W: paleocoordinates 5.6° S, 43.8° W)

• local area-level geographic resolution

When: Arroyo Penasco Formation, Carboniferous (358.9 - 298.9 Ma)

• The Arroyo Penasco Fm. is underlain unconformable by Precambrian rocks and overlain unconformably by Pennsylvanian rocks. The fossils in this collection were found 110-130 ft. above the Precambrian rock.

Environment/lithology: limestone

Collection methods: chemical, peel or thin section, sieve,

Primary reference: A. K. A. Armstrong. 1967. Biostratigraphy and Carbonate Facies of the Mississippian Arroyo Penasco Formation, North - Central New Mexico. State Bureau of Mines and Mineral Resources New Mexico Institute of Mining and Technology, Memoir (20)22-53 [T. Olszewski/M. Gibson/P. Wagner]more details

PaleoDB collection 12908: authorized by Tom Olszewski, entered by Melissa Gibson on 02.01.2002

Creative Commons license: CC BY (attribution)