B4-Portezuelo Ancho Pass, Bed 1285, Mendoza: Pliensbachian, Argentina

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia
Bivalvia indet. Linnaeus 1758
Bivalvia - Arcida - Parallelodontidae
Parallelodon sp. Meek and Worthen 1866
Bivalvia - Arcida - Cucullaeidae
Cucullaea cf. rothi
Bivalvia - Pectinida - Neitheidae
Weyla unca (Philippi 1899)
Bivalvia - Ostreida - Malleidae
Pulvinites (Hypotrema) sp. Blainville 1824
Bivalvia - Ostreida - Pinnidae
Pinna cf. folium Young and Bird 1822
Bivalvia - Mytilida - Mytilidae
Modiolus sp. (Lamarck 1801)
Bivalvia - Trigoniida - Myophorellidae
Myophorella sp. Bayle 1878
see common names

Geography
Country:Argentina State/province:Mendoza
Coordinates: 35.1° South, 70.1° West (view map)
Paleocoordinates:35.5° South, 30.3° West
Basis of coordinate:stated in text
Geographic resolution:small collection
Time
Period:Jurassic Epoch:Early/Lower Jurassic
Stage:Pliensbachian 10 m.y. bin:Jurassic 2
Key time interval:Pliensbachian
Age range of interval:190.80000 - 182.70000 m.y. ago
Stratigraphy
Formation:Puchenque
Local section:Portezuelo Ancho Pass Local bed:1285
Local order:bottom to top
Stratigraphic resolution:bed
Stratigraphy comments: within the Fanninoceras ammonite Zone
Lithology and environment
Primary lithology: sandstone
Secondary lithology: calcareous mudstone
Lithology description: sandstone and mudstone with calcareous mudstones to the top
Environment:marine indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection excludes:some macrofossils
Collection methods:surface (in situ),field collection
Reason for describing collection:taxonomic analysis
Metadata
Database number:33735
Authorizer:A. Miller Enterer:K. Layou
Modifier:A. Khan Research group:marine invertebrate
Created:2003-08-06 12:53:03 Last modified:2013-08-13 22:31:12
Access level:the public Released:2003-08-06 12:53:03
Creative Commons license:CC BY
Reference information

Primary reference:

3975. S. E. Damborenea. 1987. Early Jurassic Bivalvia of Argentina: Part 1, Stratigraphical introduction and superfamilies Nuculanacea, Arcacea, Mytilacea and Pinnacea. Palaeontographica A199(1-3):23-111 [W. Kiessling/W. Kiessling]