San Luis Potosi, riverbed Arroyo de la Atarjea: Maastrichtian, Mexico

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Anthozoa - Scleractinia - Agariciidae
Trochoseris aperta Duncan 1864
Cyathoseris formosa d'Achiardi 1875
Anthozoa - Scleractinia - Poritidae
Goniopora sp. Blainville 1830
Anthozoa - Scleractinia - Actinacididae
Actinhelia elegans (Goldfuss 1826)
Actinacis parvistella Oppenheim 1930
synonym of Actinacis martiniana
Actinacis haueri Reuss 1854
Anthozoa - Scleractinia - Siderastreidae
Siderastrea adkinsi (Wells 1934)
Siderastrea vancouverensis Clark and Arnold 1923
Anthozoa - Scleractinia - Haplaraeidae
Meandrophyllia oceani (de Fromentel 1877)
Anthozoa - Scleractinia - Placocoeniidae
Placocoenia major Felix 1903
Anthozoa - Scleractinia - Merulinidae
Dictuophyllia conferticostata (Vaughan 1899)
Cladocora cracilis
Cladocora jamaicaensis Vaughan 1899
Antiguastrea cellulosa (Duncan 1863)
Anthozoa - Scleractinia - Brachyphylliidae
Dermosmiliopsis orbignyi Alloiteau 1952
Anthozoa - Scleractinia - Agatheliidae
Multicolumnastraea cyathiformis (Duncan 1865)
see common names

Geography
Country:Mexico
Coordinates: 22.1° North, 101.0° West (view map)
Paleocoordinates:28.6° North, 81.6° West
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
Stage:Maastrichtian 10 m.y. bin:Cretaceous 8
Key time interval:Maastrichtian
Age range of interval:72.10000 - 66.00000 m.y. ago
Stratigraphy
Formation:Cardenas
Stratigraphy comments: The Upper Cretaceous Cardenas Formation is a mixed clastic/
carbonate sequence, and is best exposed north of the city of Cardenas
in east-central Mexico (state San Luis Potosı´) (Fig. 1). Tectonically,
the Cardenas Formation is part of the fold and thrust
belt of the Sierra Madre Oriental. The section is exposed in a riverbed called Arroyo de la Atarjea, which is located approximately 2 km north of Cardenas
The section is 1,200 m thick. The Tabaco Formation overlie the Cardenas Formation.
Lithology and environment
Primary lithology: sandstone
Secondary lithology: poorly lithified siltstone
Lithology description: Lithologies consist of marls, siltstones, and arenites, as well as sparse conglomerates. In addition, the upper and lower members are characterized by carbonate intervals, which bear rudist assemblages in the lower member and rudist-dominated, mixed coralrudist and coral-dominated assemblages in the upper member
Environment:shallow subtidal indet.
Geology comments: The Upper Cretaceous Cardenas Formation is a mixed clastic/
carbonate sequence, and is best exposed north of the city of Cardenas
in east-central Mexico (state San Luis Potosı´) (Fig. 1). Tectonically,
the Cardenas Formation is part of the fold and thrust
belt of the Sierra Madre Oriental. The section is exposed in a riverbed called Arroyo de la Atarjea, which is located approximately 2 km north of Cardenas
The section is 1,200 m thick. The Tabaco Formation overlie the Cardenas Formation.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:general faunal/floral analysis
Metadata
Database number:138913
Authorizer:W. Kiessling Enterer:M. Krause
Modifier:M. Krause Research group:marine invertebrate
Created:2013-02-02 02:18:19 Last modified:2013-02-01 09:20:25
Access level:authorizer only Released:2013-05-02 02:18:19
Creative Commons license:CC BY
Reference information

Primary reference:
44604. R. C. Baron-Szabo, A. Schafhauser, S. Götz and W. Stinnesbeck. 2006. Scleractinian corals from the Cardenas Formation (Maastrichtian), San Luis Potosi, Mexico. Journal of Paleontology 80(6):1033-1046 [W. Kiessling/M. Krause]