IGM-2616 (Cretaceous of Mexico)

Where: San Luis Potosi, Mexico (22.5° N, 99.7° W: paleocoordinates 28.8° N, 80.2° W)

• coordinate stated in text

When: Cardenas Formation, Maastrichtian (72.1 - 66.0 Ma)

• Overlying Formation: Tobaco Formation. Underlying Formation: Tamasopo Fotmation. (Schafhauser et al., 2003). Thickness in this location is 230 m (Vega et al., 1995a).

Environment/lithology: lagoonal; gray, green, blue shale and gray, green, blue mudstone

• The is similar to Locality IGM-2615, except it seems to be the shallow part of a marginal lagoon. (Vega et al., 1995a).
• Gray, green, and gray-blue mudstones and shales (the sediments are more arenaceous and the rocks tend to be grayish blue comnpared to other Cardenas Formation outcrops). Also, bioturbation seems to be scarce at this location. (Vega et al., 1995a).

Size class: macrofossils

Primary reference: F. J. Vega, R. M. Feldmann, and F. Sour-Tovar. 1995. Fossil Crabs (Crustacea: Decapoda) from the Late Cretaceous Cardenas Formation, East-Central Mexico. Journal of Paleontology 69(2):340-350 [A. Miller/B. Anderson/A. Lynch]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 228599: authorized by Joanna Wolfe, entered by Arthur Lynch on 16.12.2022

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Malacostraca
 Decapoda - Dakoticancridae
Dakoticancer australis
Dakoticancer australis Rathbun 1935 crab
 Decapoda - Lithophylacidae
Branchiocarcinus cornatus
Branchiocarcinus cornatus Vega et al. 1995 crab