Upper Cady Mountains: Hemingfordian, California
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia
- Carnivora
- Canidae
|
||||||||||
Tomarctus cf. hippophaga
(Matthew and Cook 1909)
|
||||||||||
"hippophagus" | ||||||||||
Mammalia
- Perissodactyla
- Equidae
|
||||||||||
Merychippus tehachapiensis
Buwalda and Lewis 1955
|
||||||||||
synonym of Parapliohippus carrizoensis | ||||||||||
Mammalia
- Perissodactyla
- Rhinocerotidae
|
||||||||||
Diceratherium sp.
Marsh 1875
|
||||||||||
= Rhinocerotidae indet.
Gray 1821
|
Woodburne 1998 | |||||||||
Mammalia
- Camelidae
|
||||||||||
Miolabis tenuis
Matthew 1924
|
||||||||||
recombined as Paramiolabis tenuis | ||||||||||
cf. Aepycamelus sp.
Macdonald 1956
|
||||||||||
Mammalia
- Antilocapridae
|
||||||||||
Merycodus sp.
Leidy 1854
|
||||||||||
presumably sensu Frick | ||||||||||
Mammalia
- Rodentia
- Castoridae
|
||||||||||
cf. Anchitheriomys sp.
Roger 1885
|
||||||||||
Mammalia
- Rodentia
- Heteromyidae
|
||||||||||
Proheteromys sulculus
Wilson 1960
|
||||||||||
see common names |
Geography
Country: | United States | State/province: | California | County: | San Bernardino |
Coordinates: | 34.8° North, 117.0° West (view map) | ||||
Paleocoordinates: | 33.9° North, 111.4° West | ||||
Basis of coordinate: | based on political unit |
Time
Period: | Neogene | Epoch: | Miocene |
Stage: | Burdigalian | 10 m.y. bin: | Cenozoic 5 |
*Period: | Tertiary | ||
Key time interval: | Hemingfordian | ||
Age range of interval: | 20.43000 - 15.97000 m.y. ago | ||
Age estimate: | 17.03 Ma (paleomagnetic)maximum 17.9 ± 0.3 Ma (K-Ar) | ||
* legacy (obsolete) database fields |
Stratigraphy
Formation: | Hector | ||||
Local section: | CadyM | Local bed: | 3 | ||
Local order: | bottom to top | ||||
Stratigraphic resolution: | group of beds | ||||
Stratigraphy comments: multiple localities from a 100 m interval outcropping across about 2 km, most of which are about 65 m above an ignimbrite dated at 17.9 +/- 0.3 Ma (K-Ar according to MacFadden et al. 1990)
in chron C5Cr according to paleomag, which seems reliable based on two KA dates: MacFadden et al. 1990; this spans 16.726 to 17.277 Ma (avg 17.03 Ma): Cande and Kent 1995 |
Lithology and environment
Primary lithology: | not reported |
Environment: | terrestrial indet. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Collection methods and comments
Reason for describing collection: | general faunal/floral analysis |
Metadata
Database number: | 19586 | ||
Authorizer: | J. Alroy | Enterer: | J. Alroy |
Modifier: | B. Allen | Research group: | vertebrate |
Created: | 1995-01-05 00:00:00 | Last modified: | 2023-07-29 06:34:59 |
Access level: | the public | Released: | 1995-01-05 00:00:00 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
3759. | M. O. Woodburne, S. T. Miller, and R. H. Tedford. 1982. Stratigraphy and geochronology of Miocene strata in the central Mojave Desert, California. Geologic excursions in the California deserts and adjacent transverse ranges: fieldtrip guidebook and volume prepared for the joint meeting of the Cordilleran Section--GSA and Pacific Section--AAPG, April 9-11, 2001, Universal City, California : fieldtrips 1-4 47-64 [J. Alroy/J. Alroy/J. Marcot] |
Secondary references:
6294 | J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari] | |
3757 | M. O. Woodburne. 1998. Arikareean and Hemingfordian faunas of the Cady Mountains, Mojave Desert Province, California. Geological Society of America Special Paper 325:197-210 [J. Alroy/J. Alroy/J. Marcot] |