MNA Loc. 337: sandstone facies, upper sandstone, Dakota Fm: Late Cenomanian, Arizona

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Cardiida - Cardiidae
Bivalvia - Carditida - Astartidae
see common names

Geography
Country:United States State/province:Arizona County:Navajo
Coordinates: 35.5° North, 110.5° West (view map)
Paleocoordinates:42.6° North, 69.2° West (Wright 2013)
Basis of coordinate:stated in text
Time
Period: Cretaceous Epoch: Late Cretaceous
Stage: Cenomanian 10 m.y. bin: Cretaceous 5
Key time interval: Late Cenomanian
Age range of interval: 100.5 - 93.9 m.y. ago
Stratigraphy
Formation:Dakota Member:upper sandstone
Local bed:upper sandstone facies
Local order:bottom to top
Regional section:Black Mesa
Stratigraphic resolution:bed
Lithology and environment
Primary lithology: lithified sandstone
Includes fossils?Y
Includes fossils?Y
Environment:basinal (siliceous) Tectonic setting:foreland basin
Glacial or sequence phase:transgressive systems tract
Taphonomy
Modes of preservation:mold/impression,replaced with calcite
Size of fossils:macrofossils
Preservation of anatomical detail:good
Collection methods and comments
Collection excludes:some microfossils
Collection methods:bulk,selective quarrying,field collection
Reason for describing collection:taxonomic analysis
Museum repositories:NMMNH
Metadata
Database number:55633
Authorizer:P. Harries Enterer:P. Harries
Modifier:P. Harries Research group:marine invertebrate
Created:2005-11-02 04:08:35 Last modified:2025-02-22 15:12:02
Access level:the public Released:2005-11-02 04:08:35
Creative Commons license:CC0
Reference information

Primary reference:
14403. J. I. Kirkland. 1996. Paleontology of the Greenhorn cylcothem (Cretaceous: late Cenomanian to middle Turonian) at Black Mesa, northeastern Arizona. New Mexico Museum of Natural History and Science Bulletin 9:1-131 [P. Harries/P. Harries/P. Harries]