Where: Sandoval County, New Mexico (35.7° N, 107.0° W: paleocoordinates 36.2° N, 70.3° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Euomphaloceras septemseriatum ammonoid zone, Mancos Shale Formation, Late/Upper Cenomanian (99.6 - 93.5 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Reposited in the USNM

Primary reference: S. C. Hook and W. A. Cobban. 2017. Mecaster batnensis (Coquand, 1862), a late Cenomanian echinoid from New Mexico, with a compilation of Late Cretaceous echinoid records in the Western Interior of the United States and Canada. Acta Geologica Polonica 67:1-30 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 197665: authorized by Matthew Clapham, entered by Matthew Clapham on 21.11.2018

Creative Commons license: CC BY (attribution)