Marr Ranch clay pits, Tularosa (YPM coll) (Carboniferous of the United States)

Where: New Mexico (33.1° N, 106.0° W: paleocoordinates 1.5° S, 37.4° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Bursum Formation, Gzhelian (303.7 - 298.9 Ma)

• Listed as Asselian but Bursum Formation is uppermost Pennsylvanian (Virgilian=Gzhelian). Middle part of formation.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, concretionary shale

• Calcareous concretions in dark shale matrix

Size class: macrofossils

Collected by C.L. Baker, N.F. Drake; reposited in the YPM

• All these specimens were purchased by Charles Schuchert from Bose's estate and are reposited at Yale University.

Primary reference: W. M. Furnish and B. F. Glenister. 1971. Permian Gonioloboceratidae (Ammonoidea). Smithsonian Contributions to Paleobiology 3:301-312 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 108528: authorized by Matthew Clapham, entered by Matthew Clapham on 01.05.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Cephalopoda
 Goniatitida - Neoicoceratidae
Eoasianites subtilicostatus n. sp.
 Goniatitida - Gonioloboceratidae
Mescalites discoidalis n. gen. n. sp.
Mescalites discoidalis n. gen. n. sp. Bose 1920 ammonite