Aliso Viejo: Langhian - Serravallian, California
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Chondrichthyes
- Carcharhiniformes
- Galeocerdidae
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Galeocerdo aduncus
(Agassiz 1835)
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13 specimens | ||||||
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Mammalia
- Cetacea
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Odontoceti indet.
Flower 1867
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Parham et al. 2022 | 1 specimen | |||||
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Mammalia
- Cetacea
- Allodelphinidae
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Zarhinocetus errabundus
(Kellogg 1931)
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Parham et al. 2022 | 1 specimen | |||||
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Mammalia
- Perissodactyla
- Paleoparadoxiidae
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Neoparadoxia cecillialina
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Parham et al. 2022 | 1 specimen | |||||
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Neoparadoxia cecilialina n. gen., n. sp.
Barnes 2013
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1 specimen | ||||||
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Mammalia
- Perissodactyla
- Desmostylidae
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Desmostylus sp.
Marsh 1888
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Parham et al. 2022 | 1 specimen | |||||
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Mammalia
- Carnivora
- Desmatophocidae
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Allodesmus sp.
Kellogg 1922
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Parham et al. 2022 | 1 specimen | |||||
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Mammalia
- Carnivora
- Odobenidae
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Neotherium sp.
Kellogg 1931
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Parham et al. 2022 | 1 specimen | |||||
| see common names | |||||||
Geography
| Country: | United States | State/province: | California | County: | Orange |
| Coordinates: | 33.6° North, 117.7° West (view map) | ||||
| Paleocoordinates: | 32.9° North, 113.3° West | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Neogene | Epoch: | Miocene |
| 10 m.y. bin: | Cenozoic 5 | ||
| Key time interval: | Langhian - Serravallian | ||
| Age range of interval: | 15.98000 - 11.63000 m.y. ago |
Stratigraphy
| Formation: | Monterey | Member: | lower | ||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: late Miocene, correlated with the Mohnian foraminiferal stage and ‘‘Margaritan’’ provisional megainvertebrate stage (Addicott, 1972; Barnes, 1977, 1985) and approximately 10 to 11 million years old (Fig. 2). | |||||
Lithology and environment
| Primary lithology: | planar lamination siltstone |
| Secondary lithology: | diatomite |
| Includes fossils? | Y |
| Includes fossils? | Y |
| Lithology description: finely laminated, semiconcretionary diatomites, mudstones, and siltstones | |
| Environment: | slope/ramp reef |
| Geology comments: deeper shelf or upper slope depths | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Feeding/predation traces: | tooth marks |
Collection methods and comments
| Collection methods: | survey of museum collection |
| Reason for describing collection: | general faunal/floral analysis |
Metadata
| Also known as: | LACM 7506, OCPC 1002 | ||
| Database number: | 151009 | ||
| Authorizer: | M. Uhen | Enterer: | M. Uhen |
| Modifier: | M. Uhen | Research group: | vertebrate |
| Created: | 2013-09-19 07:47:59 | Last modified: | 2022-05-02 14:46:20 |
| Access level: | the public | Released: | 2013-09-19 07:47:59 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 48228. | L. G. Barnes. 2013. A new genus and species of Late Miocene paleoparadoxiid (Mammalia, Desmostylia) from California. Contributions in Science 521:51-114 [M. Uhen/M. Uhen] |
Secondary references:
| 81499 | J. F. Parham, J. A. Barron, and J. Velez-Juarbe. 2022. Middle and late Miocene marine mammal assemblages from the Monterey Formation of Orange County, California. Geological Society of America Special Paper 556 [M. Uhen/M. Uhen] |