Difunta Group (Cretaceous of Mexico)

Where: Chiapas, Mexico (16.1° N, 92.8° W: paleocoordinates 19.1° N, 67.0° W)

When: Late/Upper Cretaceous (100.5 - 66.0 Ma)

Environment/lithology: lagoonal; calcareous siltstone and concretionary, phosphatic mudstone

Size classes: mesofossils, microfossils

Primary reference: F. Vega, V. Davila-Alocer, and H. F. Filkorn. 2005. Characterization of cuticle structure in Late Cretaceous and Early Tretiary decapod Crustacea from Mexico. Bulletin of the Mizunami Fossil Museum (32)37-42 [C. Schweitzer/E. Johnson]more details

Purpose of describing collection: taphonomic analysis

PaleoDB collection 133542: authorized by Carrie Schweitzer, entered by Evaline Johnson on 16.09.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Malacostraca
 Decapoda - Erymidae
Enoploclytia sp. McCoy 1849 decapod
 Decapoda - Raninidae
Lophoranina cristaspina Vega et al. 2001 crab
Vega, Cosma, Coutino, Feldmann, Nyborg, Schweitzer, and Waugh, 2001
 Decapoda - Palaeoxanthopsidae
Palaeoxanthopsis meyapaquensis Vega and Feldmann 2001 crab
Vega, Feldmann, Garcia-Barrera, Filkorn, Pimentel and Avendano, 2001
 Decapoda -
Megaxantho zoque Vega and Feldmann 2001 crab
Vega, Feldmann, Garcia-Barrera, Filkorn, Pimentel and Avendano, 2001
 Decapoda - Carcineretidae
Carcineretes planetarius Vega 1997 crab
Vega, Feldmann, Ocampo and Pope, 1997
 Decapoda - Retroplumidae
Costacopluma mexicana Vega and Perrilliat 1989 crab
Vega and Perrilliat, 1989
 Decapoda - Dakoticancridae
Dakoticancer australis Rathbun 1935 crab
Rathbun, 1935