MNA Loc. 963: sandstone facies, upper ss, Dakota: Late Cenomanian, Arizona

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Pectinida - Pectinidae
Bivalvia - Pectinida - Plicatulidae
Plicatula cf. ferryi Coquand 1862
Bivalvia - Ostreida - Ostreidae
Lopha staufferi (Bergquist 1944)
Bivalvia - Ostreida - Gryphaeidae
Bivalvia - Ostreida - Pteriidae
Phelopteria dalli Stephenson 1936
Bivalvia - Ostreida - Pinnidae
Bivalvia - Cardiida - Veneridae
Aphrodina cf. munda (Stephenson 1952)
Bivalvia - Cardiida - Cardiidae
Bivalvia - Pholadomyida - Pholadomyidae
Pholadomya sp. Sowerby 1823
Cephalopoda - Ammonitida - Acanthoceratidae
Gastropoda - Naticidae
see common names

Geography
Country:United States State/province:Arizona County:Navajo
Coordinates: 36.0° North, 111.0° West (view map)
Paleocoordinates:43.2° North, 69.7° West (Wright 2013)
Basis of coordinate:stated in text
Geographic resolution:small collection
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:sandstone facies
Local order:bottom to top
Regional section:Coal Shute
Stratigraphic resolution:bed
Stratigraphy comments: Collection comes from the upper Cenomanian Metoicoceras mosbyensis Zone
Lithology and environment
Primary lithology: lithified sandy sandstone
Environment:basinal (siliceous) Tectonic setting:foreland basin
Glacial or sequence phase:transgressive systems tract
Taphonomy
Modes of preservation:mold/impression
Size of fossils:macrofossils
Preservation of anatomical detail:good
Abundance in sediment:common
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:54155
Authorizer:P. Harries Enterer:P. Harries
Modifier:P. Harries Research group:marine invertebrate
Created:2005-09-25 06:11:31 Last modified:2025-02-22 15:12:02
Access level:the public Released:2005-09-25 06:11:31
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]