CIT loc. 1602, NW side of crest of ridge, highway between Martinez and Crockett: Late/Upper Maastrichtian, California

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda - Neogastropoda - Perissityidae
Perissitys stantoni (Stewart 1927)
Popenoe and Saul 1987
Gastropoda - Naticidae
Gyrodes (Sohlella) expansus (Gabb 1864)
original and current combination Gyrodes expansa
see common names

Geography
Country:United States State/province:California County:Contra Costa
Coordinates: 38.0° North, 122.2° West (view map)
Paleocoordinates:45.2° North, 97.2° West
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
Stage:Maastrichtian 10 m.y. bin:Cretaceous 8
Key time interval:Late/Upper Maastrichtian
Age range of interval:72.10000 - 66.00000 m.y. ago
Stratigraphy
Geological group:Great Valley
Stratigraphic resolution:formation
Lithology and environment
Primary lithology: sandstone
Environment:marine indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Metadata
Also known as:LACMIP loc. 10526
Database number:177889
Authorizer:P. Wagner Enterer:P. Wagner
Modifier:J. Marcot Research group:marine invertebrate
Created:2016-04-11 22:27:08 Last modified:2021-10-08 12:49:20
Access level:the public Released:2016-04-11 22:27:08
Creative Commons license:CC BY
Reference information

Primary reference:
11856. W. P. Popenoe, L. R. Saul, and T. Susuki. 1987. Gyrodiform gastropods from the Pacific coast Cretaceous and Paleocene. Journal of Paleontology 61(1):70-100 [M. Kosnik/M. Kosnik/M. Kosnik]

Secondary references:

243791% 7220W. P. Popenoe and L. R. Saul. 1987. Evolution and classification of the Late Cretaceous-Early Tertiary gastropod Perissitys. Contributions in Science 380:1-37 [W. Kiessling/U. Merkel]