Section A in Hacienda El Americano, Sierra de los Organos, western Cuba - VI: Late Berriasian - Early Valanginian, Cuba

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Protozoa - Calpionellida
unclassified
see common names

Geography
Country:Cuba
Coordinates: 22.7° North, 83.6° West (view map)
Paleocoordinates:2.0° North, 43.2° West (Wright 2013)
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period: Cretaceous Epoch: Early Cretaceous
Stage: Berriasian - Valanginian 10 m.y. bin: Cretaceous 1
Key time interval: Late Berriasian - Early Valanginian
Age range of interval: 139.1 - 132.6 m.y. ago
Stratigraphy
Formation:Guasasa Member:Tumbadero
Stratigraphic resolution:member
Lithology and environment
Primary lithology: lithified lime mudstone
Secondary lithology: lithified chert
Lithology description: 40 m. Dark micritic limestone with thin-bedded chert.
Environment:offshore shelf
Geology comments: During the Early Cretaceous the environment of the Sierra de los Organos was one of deeper waters.
Taphonomy
Size of fossils:microfossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:biostratigraphic analysis
Metadata
Database number:57716
Authorizer:M. Aberhan Enterer:S. Nurnberg
Modifier:S. Nurnberg Research group:marine invertebrate,micropaleontology
Created:2005-12-20 03:15:48 Last modified:2025-02-22 15:12:02
Access level:the public Released:2005-12-20 03:15:48
Creative Commons license:CC0
Reference information

Primary reference:

15500. R. Myczynski. 1989. Ammonite biostratigraphy of the Tithonian of Western Cuba. Annales Societatis Geologorum Poloniae 59:43-125 [M. Aberhan/S. Nurnberg]