Where: Sierra County, New Mexico (32.8° N, 107.5° W: paleocoordinates 24.2° S, 54.2° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Percha Formation, Late/Upper Famennian (364.7 - 360.7 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified shale

Size class: macrofossils

Collected by A.L. Bowsher in 1949; reposited in the USNM

Primary reference: A. K. Miller and C. Collinson. 1951. A clymenoid ammonoid from New Mexico. American Journal of Science 249:600-603 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 170918: authorized by Matthew Clapham, entered by Matthew Clapham on 28.06.2015

Creative Commons license: CC BY (attribution)