4 1/2 mi SE of Fort Worth, 1/4 mi S of International Great Northern Railway... (Cretaceous of the United States)

Also known as ...bridge across Sycamore Creek

Where: Tarrant County, Texas (32.7° N, 97.3° W: paleocoordinates 30.5° N, 50.2° W)

When: Pawpaw Formation, Early/Lower Cretaceous (145.0 - 100.5 Ma)

Environment/lithology: marine; claystone

Size classes: macrofossils, mesofossils

• eight specimens, (O. texanus); one left palm, and one abdomen showing segments 3-6, "placed here with doubt", (C. cretacea); fragment of carapace (Linuparus ? sp.); fragments of carapaces (Necrocarcinus ? sp.); one left dactyl and the proximal end, with large tooth, of five large fingers (O. comancheensis); a right palm and immobile finger (A. cretacea); one carapace, holotype, twelve palms, four with fingers, two with wrists, one with arm (C. americanus);

Collected by W.S. Adkins, (209)

• University of Texas, Coll. No. 284: (C. cretacea); University of Texas collection: one fragment (Linuparus ? sp.), carapace fragments (Necrocarcinus ? sp.), various fingers (O. comancheensis); University of Texas, types, Coll. No. 209: holotype and paratype (A. cretacea), one carapace, holotype, twelve palms (C. 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: paleoecologic analysis

PaleoDB collection 141174: authorized by Carrie Schweitzer, entered by Samantha Yost on 21.03.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Malacostraca
 Decapoda - Nephropidae
Oncopareia texanus Rathbun 1935 clawed lobster
 Decapoda - Palinuridae
Linuparus ? sp. White 1847 spiny lobster
 Decapoda - Callianassidae
Callianassa cretacea Rathbun 1935 decapod
 Decapoda - Necrocarcinidae
Necrocarcinus ? sp. Bell 1863 crab
 Decapoda - Xanthidae
Actaea cretacea Rathbun 1935 stone crab
 Decapoda - Macropipidae
Ophthalmoplax comancheensis Rathbun 1935 crab
Caloxanthus
  - Feldmanniidae