Simi Valley Landfill: Duchesnean, California
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
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Mammalia indet.
Linnaeus 1758
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Kelly 1992 | 1 specimen | ||||||||
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Mammalia
- Primates
- Omomyidae
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Omomyidae indet.
Gazin 1958
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1 specimen | |||||||||
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Mammalia
- Primates
- Microsyopidae
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cf. Uintasorex sp.
Matthew 1909
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Kelly 2010 | |||||||||
| LACM 153954 | ||||||||||
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Mammalia
- Rodentia
- Simimyidae
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Simimys simplex
(Wilson 1935)
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| NISP stated nowhere and may be large | ||||||||||
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Simimys sp.
Wilson 1935
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25 specimens | |||||||||
| (4 measurements) | ||||||||||
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= Simimys landeri n. sp.
Kelly 1992
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Kelly 1992 | |||||||||
| said to be new | ||||||||||
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Mammalia
- Rodentia
- Zapodidae
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Zapodidae indet.
Coues 1875
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17 specimens | |||||||||
| (3 measurements) | ||||||||||
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= Simiacritomys whistleri n. sp.
Kelly 1992
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Kelly 1992 | |||||||||
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Mammalia
- Rodentia
- Heliscomyidae
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Heliscomys sp.
Cope 1873
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2 specimens | |||||||||
| said to be new | ||||||||||
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= Heliscomys walshi n. sp.
Kelly 2009
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Kelly 2009 | |||||||||
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Mammalia
- Rodentia
- Eomyidae
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Metanoiamys korthi n. sp.
Kelly and Whistler 1998
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Kelly and Whistler 1998 | 17 specimens | ||||||||
| "Namatomys" sp. said to be new and assigned to Metanoiamys by Chiment and Korth 1996; (16 according to Kelly 1992b) (4 measurements) | ||||||||||
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Paradjidaumo sp.
Burke 1934
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51 specimens | |||||||||
| (4 measurements) | ||||||||||
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= Paradjidaumo reynoldsi n. sp.
Kelly 1992
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Kelly 1992 | |||||||||
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Mammalia
- Rodentia
- Ischyromyidae
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Leptotomus sp.
Matthew 1910
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1 specimen | |||||||||
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Mammalia
- Sespedectidae
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Proterixoides davisi
Stock 1935
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Kelly 1992 | |||||||||
| NISP stated nowhere | ||||||||||
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Sespedectes singularis
Stock 1935
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2 specimens | |||||||||
| Kelly and Whistler 1994 | ||||||||||
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Mammalia
- Oligoryctidae
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cf. Oligoryctes sp.
Hough 1956
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Kelly 2010 | |||||||||
| LACM 153688 | ||||||||||
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Mammalia
- Geolabididae
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Batodonoides walshi n. sp.
Kelly 2010
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Kelly 2010 | |||||||||
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Mammalia
- Praetragulidae
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Simimeryx sp.
Stock 1934
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3 specimens | |||||||||
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= Simimeryx aff. hudsoni
Stock 1934
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Kelly and Whistler 1994 | |||||||||
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Mammalia
- Camelidae
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Camelidae indet.
Gray 1821
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1 specimen | |||||||||
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Mammalia
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Peradectes californicus
(Stock 1936)
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Kelly and Whistler 1994 | 1 specimen | ||||||||
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Herpetotherium sp.
Cope 1873
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Kelly 2010 | |||||||||
| LACM 153689 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | California | County: | Ventura |
| Coordinates: | 34.3° North, 119.0° West (view map) | ||||
| Paleocoordinates: | 33.7° North, 107.3° West | ||||
| Basis of coordinate: | based on political unit | ||||
| Geographic resolution: | small collection |
Time
| Period: | Paleogene | Epoch: | Eocene |
| 10 m.y. bin: | Cenozoic 3 | ||
| *Period: | Tertiary | ||
| Key time interval: | Duchesnean | ||
| Age range of interval: | 39.70000 - 37.00000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
Lithology and environment
| Primary lithology: | not reported |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
Collection methods and comments
| Collection size: | 150 specimens |
| Reason for describing collection: | general faunal/floral analysis |
| Museum repositories: | LACM |
| Taxonomic list comments:middle or late Duchesnean overlies Tapo Canyon, Brea Canyon, Strathern, and Pearson Ranch L.F.'s NISP 124+, apparently <200; 150 seems reasonable said by Kelly and Whistler 1994 to be in a reversed magnetozone, which Prothero et al. 1992 GSA abs. believe is C17R; however, there is no clear tiepoint | |
Metadata
| Also known as: | LACM 5876 | ||
| Database number: | 16813 | ||
| Authorizer: | J. Alroy, J. Marcot | Enterer: | J. Alroy, J. Marcot |
| Modifier: | M. Uhen | Research group: | vertebrate |
| Created: | 1993-09-27 00:00:00 | Last modified: | 2008-11-10 16:33:46 |
| Access level: | the public | Released: | 1993-09-27 00:00:00 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 2072. | T. S. Kelly, E. B. Lander, D. P. Whistler, M. A. Roder, and R. E. Reynolds. 1991. Preliminary Report on a Paleontologic Investigation of the Lower and Middle Members, Sespe Formation, Simi Valley Landfill, Ventura County, California. PaleoBios 13(50):1-13 [J. Alroy/J. Alroy/J. Ju] |
Secondary references:
| 2061 | T. S. Kelly. 1992. New Uintan and Duchesnean (Middle and Late Eocene) Rodents from the Sespe Formation, Simi Valley, California. Bulletin of the Southern California Academy of Sciences 91(3):97-120 [J. Alroy/J. Alroy/M. Uhen] | |
| 57323 | 0 | T. S. Kelly. 2009. A New Species of Heliscomys (Rodentia, Heliscomyidae) From the Duchesnean (Middle Eocene) Simi Valley Landfill Local Fauna, Sespe Formation, California. Paludicola 7(3):67-77 [J. Marcot/J. Marcot] |
| 57281 | T. S. Kelly. 2010. New Records of Marsupialia, Lipotyphla, and Primates From the Duchesnean (Middle Eocene) Simi Valley Landfill Local Fauna, Sespe Formation, California. Paludicola 7(4):158-169 [J. Marcot/J. Marcot] | |
| 2074 | T. S. Kelly and D. P. Whistler. 1994. Additional Uintan and Duchesnean (Middle and Late Eocene) mammals from the Sespe Formation, Simi Valley, California. Contributions in Science, Natural History Museum of Los Angeles County 439:1-29 [J. Alroy/J. Alroy/J. Marcot] | |
| 2075 | T. S. Kelly and D. P. Whistler. 1998. A New Eomyid Rodent from the Sespe Formation of Southern California. Journal of Vertebrate Paleontology 18(2):440-443 [J. Alroy/J. Alroy/J. Ju] |