Where: Union County, Mississippi (34.4° N, 88.9° W: paleocoordinates 37.6° N, 61.6° W)

When: Ripley Formation, Late/Upper Campanian to Late/Upper Campanian (83.5 - 66.0 Ma)

Environment/lithology: marine; lithology not reported

Size classes: macrofossils, mesofossils

• right manus (holotype), left manus, fixed finger, smaller left propodus, and two fragmentary right wrists (P. pilsbryi); fragment of carapace (Linuparus ? sp.);

Collected by L.W. Stephenson, (9508) in 4, 1915; reposited in the USNM

• USNM, Cat. No. 73788 (M. mortoni); Cat. No. 73789 (P. pilsbryi); Cat. No. 73843 (Linuparus ? sp.);

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: paleoecologic analysis

PaleoDB collection 142007: authorized by Carrie Schweitzer, entered by Samantha Yost on 04.04.2013, edited by Mark Uhen

Creative Commons license: CC BY (attribution)