Where: Brazos County, Texas (30.7° N, 96.5° W: paleocoordinates 32.8° N, 85.5° W)

When: Eocene (56.0 - 33.9 Ma)

Environment/lithology: marine; lithology not reported

Size classes: macrofossils, mesofossils

Reposited in the USNM

• holotype, Cat. No. 369607 (N. americanus);

Primary reference: M. J. Rathbun. 1935. Fossil Crustacea of the Atlantic and Gulf Coastal Plain. Geological Society of America Special Paper (2)1-160 [C. Schweitzer/S. Yost]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 142974: authorized by Carrie Schweitzer, entered by Samantha Yost on 18.04.2013

Creative Commons license: CC BY (attribution)