Salado Sur, Lower Member of Agrio Fm., C. ornatum Subzone: Late/Upper Valanginian, Argentina

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Trigoniida - Myophorellidae
Steinmanella pehuenmapuensis Leanza 1998
10 specimens
see common names

Geography
Country:Argentina State/province:Neuquen
Coordinates: 38.3° South, 70.3° West (view map)
Paleocoordinates:37.3° South, 33.2° West
Basis of coordinate:estimated from map
Geographic resolution:small collection
Time
Period:Cretaceous Epoch:Early/Lower Cretaceous
Stage:Valanginian 10 m.y. bin:Cretaceous 1
Key time interval:Late/Upper Valanginian
Age range of interval:140.20000 - 136.40000 m.y. ago
Stratigraphy
Geological group:Mendoza Formation:Agrio Member:Lower
Stratigraphic resolution:group of beds
Stratigraphy comments: P. angulatiformis Zone, C. ornatum Subzone
Lithology and environment
Primary lithology: lithified "mixed carbonate-siliciclastic"
Lithology description: Intercalated shales, sandstones and bioclastic limestones. Shoreface to offshore paleoenvironments on a storm-dominated, shallow marine ramp.
Environment:shoreface
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Metadata
Database number:50184
Authorizer:M. Aberhan Enterer:S. Nurnberg
Modifier:S. Nurnberg Research group:marine invertebrate
Created:2005-05-10 02:40:11 Last modified:2005-05-10 05:40:11
Access level:the public Released:2005-05-10 02:40:10
Creative Commons license:CC BY
Reference information

Primary reference:

13488. D. G. Lazo. 2003. The genus Steinmanella (Bivalvia, Trigonioida) in the lower member of the Agrio Formation (Lower Cretaceous), Neuquen Basin, Argentina. Journal of Paleontology 77(6):1069-1085 [M. Aberhan/S. Nurnberg/S. Nurnberg]