UCMP V99847, San Gregorio section, Half Moon Bay: Piacenzian, California
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia
- Cetacea
- Phocoenidae
|
|||||||
Phocoenidae indet.
(Gray 1825)
|
Boessenecker 2013 | 1 specimen | |||||
Chondrichthyes
- Rajiformes
- Rajidae
|
|||||||
Raja cf. binoculata
Girard 1855
|
|||||||
recombined as Beringraja binoculata | |||||||
Chondrichthyes
- Squalomorphii
- Pristiophoridae
|
|||||||
Pristiophorus sp.
Bleeker 1859
|
1 specimen | ||||||
see common names |
Geography
Country: | United States | State/province: | California | County: | San Mateo |
Coordinates: | 37.3° North, 122.4° West (view map) | ||||
Paleocoordinates: | 37.1° North, 121.5° West | ||||
Basis of coordinate: | based on nearby landmark |
Time
Period: | Neogene | Epoch: | Pliocene |
Stage: | Piacenzian | 10 m.y. bin: | Cenozoic 6 |
Key time interval: | Piacenzian | ||
Age range of interval: | 3.60000 - 2.58000 m.y. ago |
Stratigraphy
Formation: | Purisima | ||||
Stratigraphy comments: Lower Piacenzian, above volcanic ash with 3.3-3.4 Ma tephrochronology age |
Lithology and environment
Primary lithology: | sandstone |
Secondary lithology: | siltstone |
Environment: | coastal indet. |
Geology comments: strong influence of physical processes (waves, etc.) |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Collection methods and comments
Collection methods: | field collection |
Reason for describing collection: | general faunal/floral analysis |
Museum repositories: | UCMP |
Metadata
Database number: | 117472 | ||
Authorizer: | M. Uhen | Enterer: | M. Uhen |
Modifier: | M. Clapham | Research group: | vertebrate |
Created: | 2011-09-22 03:29:04 | Last modified: | 2017-04-01 16:47:59 |
Access level: | the public | Released: | 2011-09-22 03:29:04 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
37795. | R. W. Boessenecker. 2011. A new marine vertebrate assemblage from the Late Neogene Purisima Formation in Central California, Part I: Fossil sharks, bony fish, birds, and implications for the age of the Purisimia Formation west of the San Gregorio Fault. PalArch's Journal of Vertebrate Palaeontology 8(4):1-30 [M. Uhen/M. Uhen/M. Uhen] |
Secondary references:
49737 | R. W. Boessenecker. 2013. A new marine vertebrate assemblage from the Late Neogene Purisima Formation in Central California, part II: Pinnipeds and Cetaceans. Geodiversitas 35(4):815-939 [M. Uhen/M. Uhen/M. Uhen] |