Blue Mound, near Haslet (Cretaceous of the United States)

Where: Tarrant County, Texas (32.9° N, 97.3° W: paleocoordinates 30.8° N, 50.1° W)

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

Environment/lithology: marine; claystone

• "Denton clay"

Size classes: macrofossils, mesofossils

• an abdomen showing the last five segments and the right tail-fan, (H. anomala); one right palm, holotype (C. cretacea); two specimens, one is holotype (L. adkinsi); one carapace (N. texensis); small, incomplete specimen of carapace (N. parvus); small specimen lacking the anterior and posterior ends of carapace (R. mucronata); one specimen, spined segments 3-7 of abdomen (R. armata);

Collected by W.S. Adkins, W.M. and Hortense T. Winton in 1920

• University of Texas, type, Coll. No. 284 (H. anomala, C. cretacea, L. adkinsi, N. parvus, R. mucronata, R. armata); University of Texas, type, Coll. No. 182 (N. texensis);

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 141130: authorized by Carrie Schweitzer, entered by Samantha Yost on 21.03.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

• C. cretacea, L. adkinsi collected southeast of Haslet and east of Blue Mound in Denton clay by W.S. Adkins and W.M. Minton.

•N. texensis collected near Haslet station at Blue Mound, Northern Tarrant County (W.S. Adkins and W.M. Winton, collectors (241)).

Malacostraca
 Decapoda - Nephropidae
Hoploparia anomala Rathbun 1935 clawed lobster
 Decapoda - Palinuridae
Linuparus adkinsi Rathbun 1935 spiny lobster
 Decapoda - Callianassidae
Callianassa cretacea Rathbun 1935 decapod
 Decapoda - Raninidae
Raninella mucronata Rathbun 1935 crab
= Marylyreidus punctatus, = Notopocorystes parvus (all n. sp. according to Rathbun 1935)
Raninella armata Rathbun 1935 crab
Notopocorystes parvus Rathbun 1935 crab
= Marylyreidus punctatus, = Raninella mucronata (all n. sp. according to Rathbun 1935)
 Decapoda - Necrocarcinidae
Necrocarcinus texensis Rathbun 1935 crab