Presa San Antonio or Rincon Colorado: Late Campanian, Mexico

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Arachnida - Araneae
1 specimen
IGM 8825
Insecta - Blattaria - Blattulidae
2 specimens
IGM 8827, 8828 (2 measurements)
Insecta - Odonata
? Anisoptera indet. Selys-Longchamps and Hagen 1854
1 specimen
IGM 8826 (1 measurement)
see common names

Geography
Country:Mexico State/province:Coahuila
Coordinates: 25.3° North, 101.3° West (view map)
Paleocoordinates:34.3° North, 68.2° West (Wright 2013)
Basis of coordinate:stated in text
Time
Period: Cretaceous Epoch: Late Cretaceous
Stage: Campanian 10 m.y. bin: Cretaceous 7
Key time interval: Late Campanian
Age range of interval: 83.6 - 72.2 m.y. ago
Stratigraphy
Geological group:Difunta Formation:Cerro del Pueblo
Lithology and environment
Primary lithology:gray,green lithified mudstone
Lithology description: Olive-grey mudstone
Environment:pond Tectonic setting:passive margin
Geology comments: "The formation consists of cyclic alternations of marine, estuarine and freshwater environments. The described specimens were deposited in lakes or small ponds, associated with the deltaic system…"
Taphonomy
Modes of preservation:permineralized
Size of fossils:macrofossils,mesofossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Metadata
Also known as:IGM 3500 or IGM 3501
Database number:119500
Authorizer:M. Clapham Enterer:J. Karr
Modifier:M. Carrano Research group:paleoentomology
Created:2011-10-28 16:38:28 Last modified:2025-02-22 15:12:02
Access level:the public Released:2011-10-28 16:38:28
Creative Commons license:CC0
Reference information

Primary reference:
38350. P. Cifuentes-Ruiz, P. Vršanský, F. J. Vega, S. R. S. Cevallos-Ferriz, E. González-Soriano and C. R. Delgado Jesús. 2006. Campanian terrestrial arthropods from the Cerro del Pueblo Formation, Difunta Group in northeastern Mexico. Geologica Carpathica 57(5):347-354 [M. Clapham/J. Karr/M. Clapham]