1 mi SE of Oil City, Fresno Co. (Eocene of the United States)

Where: Fresno County, California (35.4° N, 118.9° W: paleocoordinates 37.4° N, 103.6° W)

• coordinate estimated from map

When: Eocene (56.0 - 33.9 Ma)

• Eocene (Tejon of Arnold)

Environment/lithology: marine; lithology not reported

Size classes: macrofossils, mesofossils

• One specimen of carapace with anterior margin lacking (M. hannae); one specimen of the left manus (C. fresnoensis);

Collected by G. Dallas Hanna; reposited in the CAS

• California Academy of Sciences, Loc. 874; M. hannae holotype in California Academy of Sciences; C. fresnoensis, left manus holotype in California Academy of Sciences;

Primary reference: M. J. Rathbun. 1926. The fossil stalk-eyed Crustacea of the Pacific slope of North America. United States National Museum Bulletin 138:1-155 [C. Schweitzer/S. Yost/M. Uhen]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 139893: authorized by Carrie Schweitzer, entered by Samantha Yost on 20.02.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Malacostraca
 Decapoda - Orithopsidae
Marycarcinus hannae Rathbun 1926 crab
originally named Necrocarcinus hannae by Rathbun in 1926, but has since been reclassified as Marycarcinus hannae
 Decapoda - Callianassidae
Callianassa fresnoensis Rathbun 1926 decapod