Simojovel road section B-8230: Early/Lower Oligocene, Mexico

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Anthozoa - Scleractinia - Poritidae
Porites douvillei Vaughan 1919
Nummulitidae
Nummulites (Paleonummulites) panamensis
Charentiidae
Peneroplis proteus
see common names

Geography
Country:Mexico State/province:Chiapas
Coordinates: 17.1° North, 92.7° West (view map)
Paleocoordinates:17.6° North, 87.0° West
Basis of coordinate:estimated from map
Geographic resolution:small collection
Time
Period:Paleogene Epoch:Oligocene
Stage:Rupelian 10 m.y. bin:Cenozoic 4
Key time interval:Early/Lower Oligocene
Age range of interval:33.90000 - 27.82000 m.y. ago
Stratigraphy
Geological group:Simojovel Formation:Rancho Berlin Sandstone
Stratigraphic resolution:bed
Lithology and environment
Primary lithology: lithified sandstone
Secondary lithology: lithified "shale"
Lithology description: interbedded blue, buff, and olive-green sandstone, fine grained, and gray to buff silty shale
Environment:coastal indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,microfossils
Preservation of anatomical detail:good
Collection methods and comments
Collection methods:peel or thin section,field collection
Reason for describing collection:taxonomic analysis
Metadata
Database number:85755
Authorizer:W. Kiessling Enterer:U. Merkel
Modifier:U. Merkel Research group:marine invertebrate,micropaleontology
Created:2009-01-15 00:53:15 Last modified:2009-01-15 02:59:05
Access level:authorizer only Released:2010-01-08 10:39:56
Creative Commons license:CC BY
Reference information

Primary reference:
8422. S. H. Frost and R. L. Langenheim, Jr. 1974. Cenozoic Reef Biofacies. Chicago, Northern Illinois University Press 1-388 [W. Kiessling/W. Kiessling/U. Merkel]