Locality 1, Road between Villa de Leiva and Samaca (Cretaceous of Colombia)

Where: Cundinamarca, Colombia (5.5° N, 73.5° W: paleocoordinates 1.5° S, 50.6° W)

• coordinate stated in text

When: San Rafael Formation (Villeta Group), Early/Lower Turonian (93.5 - 89.3 Ma)

• Originally entered as San Rafel and Hoplitoides lacabagnae zone. However, although Hoplitoides lacabagnae occurs there, it is not a zone taxon.

• group of beds-level stratigraphic resolution

Environment/lithology: offshore; calcareous, cherty/siliceous shale and limestone

• The authors (Feldmann et al., 1999) compare the ecology of this crab to Portunid crabs, which lived in shallow water environments. However, depostition occurred in a low-energy, anoxic environment in relatively deep water in relation to mass kill events. Both San Rafael and La Frontera Fm. have similar lithology at crab-bearing horizons. This suggests that abundant crabs were restricted to a specific type of environment that was present over large areas but was discontinuous.
• The formation contains hemipelagic limestones and silicaceous shales. The crabs were found in the upper part of the San Rafael Formation in the chert/silicaceous shale section. Contains ammonites, bivalves and planktic foraminifera. (Feldmann et al., 1999).

Size class: macrofossils

Reposited in the USNM

Primary reference: R. Feldmann, T. Villamil, and E.G. Kaufmann. 1999. Decapod and Stomatopod Crustaceans from Mass Mortality Lagerstatten: Turonian (Cretaceous) of Colombia. Journal of Paleontology 73(1):91-101 [M. Clapham/J. Fearon]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 235698: authorized by Matthew Clapham, entered by J Fearon on 20.07.2024

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Malacostraca
 Stomatopoda - Sculdidae
Sculda sp.
Sculda sp. Münster 1840 mantis shrimp
 Decapoda - Cenomanocarcinidae
"Ophthalmoplax spinosus" = Cenomanocarcinus vanstraeleni
"Ophthalmoplax spinosus" = Cenomanocarcinus vanstraeleni Stenzel 1945 crab
 Decapoda - Pinnotheridae
Pinnotheres sp.
Pinnotheres sp. Bosc 1801 crab
Cephalopoda
 Ammonitida - Coilopoceratidae
Hoplitoides lacabagnae