Sierra del Alamo, Antimonio Formation, Section 2: Norian, Mexico

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Anthozoa - Scleractinia - Reimaniphylliidae
Retiophyllia norica (Frech 1890)
Anthozoa - Scleractinia - Alpinophylliidae
Alpinophyllia flexuosa Roniewicz 1989
Disjectoporidae
Pamiropora sonorensis Stanley 1994
Stromatoporoidea - Stromatoporida - Stromatoporidae
Stromaporidium lamellatum n. sp. Stanley 1994
3
see common names

Geography
Country:Mexico State/province:Sonora
Coordinates: 30.7° North, 112.6° West (view map)
Paleocoordinates:12.0° North, 53.9° West
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period:Triassic Epoch:Late/Upper Triassic
Stage:Norian 10 m.y. bin:Triassic 4
Key time interval:Norian
Age range of interval:227.00000 - 208.50000 m.y. ago
Stratigraphy
Formation:Antimonio Member:Lower
Stratigraphic resolution:group of beds
Stratigraphy comments: based on ammonites
Lithology and environment
Primary lithology:gray "limestone"
Secondary lithology:fine sandstone
Lithology description: dark-gray impure limestones, that alternate with shale, siltstone and fine-grained sandstone
Environment:open shallow subtidal
Taphonomy
Modes of preservation:cast,mold/impression
Size of fossils:macrofossils
Preservation of anatomical detail:medium
Articulated whole bodies:some
Collection methods and comments
Collection methods:bulk,field collection
Reason for describing collection:taxonomic analysis
Metadata
Database number:39171
Authorizer:M. Aberhan Enterer:S. Nurnberg
Modifier:S. Nurnberg Research group:marine invertebrate
Created:2004-05-23 00:28:54 Last modified:2007-01-29 11:33:59
Access level:the public Released:2004-05-23 00:28:54
Creative Commons license:CC BY
Reference information

Primary reference:
10543. G. D. Stanley, Jr., C. Gonzalez-Leon, M. R. Sandy, B. Senowbari-Daryan, P. Doyle, M. Tamura, and D. H. Erwin. 1994. Upper Triassic invertebrates from the Antimonio Formation, Sonora, Mexico. The Paleontological Society Memoir 36:1-33 [M. Aberhan/S. Nurnberg/M. Clapham]