Kelly Ranch Core (SDSNH 4925): Uintan, California

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Primates - Omomyidae
see common names

Geography
Country:United States State/province:California County:San Diego
Coordinates: 33.1° North, 117.3° West (view map)
Paleocoordinates:
Basis of coordinate:based on political unit
Time
Period: Paleogene Epoch: Eocene
10 m.y. bin: Cenozoic 2-3
Key time interval: Uintan Mammal zone:  Ui3
Age range of interval: 46.2 - 39.7 m.y. ago
Age estimate: 42.5 to 41.5 Ma (paleomagnetic)
Stratigraphy
Formation:Santiago Member:C
Stratigraphic resolution:bed
Stratigraphy comments: Prothero (2001b) found the strata of Member C of the Santiago Formation to be entirely reversed and suggested it correlated with Chron C19r (42.5 Ma-41.5 Ma),
Lithology and environment
Primary lithology: siltstone
Lithology description: ~0.6 m thick, gray-green, fine grained sandy siltstone
Environment:fluvial indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils
Collection methods and comments
Collection methods:selective quarrying,sieve
Reason for describing collection:taxonomic analysis
Collection method comments: approximately ~2900 kg of sediment were hand quarried and screenwashed
Metadata
Database number:196550
Authorizer:P. Holroyd Enterer:P. Holroyd
Research group:vertebrate
Created:2018-09-22 15:52:38 Last modified:2025-02-22 15:12:02
Access level:the public Released:2018-09-22 15:52:38
Creative Commons license:CC0
Reference information

Primary reference:
66860. S. López-Torres, M. T. Silcox, and P. A. Holroyd. 2018. New omomyoids (Euprimates, Mammalia) from the late Uintan of southern California, USA, and the question of the extinction of the Paromomyidae (Plesiadapiformes, Primates). Palaeontologia Electronica 21.3.37A:1-28 [P. Holroyd/P. Holroyd/P. Holroyd]