Locality 11: Messinian, Mexico
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia
- Cetacea
- Balaenopteridae
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Balaenoptera sp.
Lacépède 1804
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Barnes 1991 | |||||||||
possibly from 45460 instead of 45458 | ||||||||||
Mammalia
- Cetacea
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aff. Plesiocetus sp.
Van Beneden 1859
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Barnes 1991 | 1 specimen | ||||||||
nomen dubium belonging to Mysticeti | ||||||||||
possibly from 45460 instead of 45458 | ||||||||||
Mammalia
- Cetacea
- Lipotidae
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Parapontoporia pacifica n. gen., n. sp.
Barnes 1984
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1 specimen | |||||||||
Mammalia
- Cetacea
- Monodontidae
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Denebola brachycephala n. gen., n. sp.
Barnes 1984
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1 specimen | |||||||||
Mammalia
- Cetacea
- Albireonidae
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Albireo sp.
Barnes 1984
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Barnes 2008 | 1 specimen | ||||||||
Mammalia
- Cetacea
- Phocoenidae
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Delphinoidea indet.
Flower 1865
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Barnes 1991 | |||||||||
= Phocoenidae indet.
Gray 1825
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Barnes 1991 | |||||||||
Piscolithax boreios n. sp.
Barnes 1984
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1 specimen | |||||||||
Piscolithax tedfordi n. sp.
Barnes 1984
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1 specimen | |||||||||
Mammalia
- Carnivora
- Odobenidae
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Aivukus cedrosensis n. gen., n. sp.
Repenning and Tedford 1977
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Repenning and Tedford 1977 | |||||||||
possibly from 45460 instead of 45458 | ||||||||||
Dusignathinae indet.
Mitchell 1968
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Barnes 1991 | |||||||||
possibly from 45460 instead of 45458 | ||||||||||
Dusignathus santacruzensis
Kellogg 1927
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Repenning and Tedford 1977 | 1 specimen | ||||||||
Mammalia
- Carnivora
- Otariidae
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Thalassoleon mexicanus
Repenning and Tedford 1977
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Barnes 1991 | |||||||||
possibly from 45460 instead of 45458 | ||||||||||
Reptilia
- Charadriiformes
- Alcidae
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Mancalla cedrosensis
Howard 1971
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Barnes 1991 | |||||||||
possibly from 45460 instead of 45458 | ||||||||||
? Synthliboramphus sp.
Brandt 1837
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Barnes 1991 | 54 specimens | ||||||||
possibly from 45460 instead of 45458 | ||||||||||
Cerorhinca minor
Howard 1971
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Barnes 1991 | 2 specimens | ||||||||
possibly from 45460 instead of 45458 | ||||||||||
Reptilia
- Procellariidae
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Puffinus sp.
Brisson 1760
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Barnes 1991 | 1 specimen | ||||||||
possibly from 45460 instead of 45458 | ||||||||||
Puffinus tedfordi
Howard 1971
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Barnes 1991 | 2 individuals | ||||||||
possibly from 45460 instead of 45458 | ||||||||||
Reptilia
- Suliformes
- Sulidae
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Morus sp.
Vieillot 1816
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Barnes 1991 | 2 specimens | ||||||||
possibly from 45460 instead of 45458 | ||||||||||
Reptilia
- Phoenicopteriformes
- Palaelodidae
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? Megapaloelodus opsigonus
Brodkorb 1961
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Barnes 1991 | 1 specimen | ||||||||
possibly from 45460 instead of 45458 | ||||||||||
Chondrichthyes
- Lamniformes
- Lamnidae
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Carcharodon cf. carcharias
(Linnaeus 1758)
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Barnes 1991 | |||||||||
possibly from 45460 instead of 45458 | ||||||||||
Chondrichthyes
- Lamniformes
- Otodontidae
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Carcharocles megalodon
(Agassiz 1835)
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Barnes 1991 | 19 elements | ||||||||
recombined as Otodus megalodon | ||||||||||
possibly from 45460 instead of 45458 | ||||||||||
Chondrichthyes
- Carcharhiniformes
- Carcharhinidae
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Carcharhinus sp.
de Blainville 1816
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Barnes 1991 | 2 elements | ||||||||
possibly from 45460 instead of 45458 | ||||||||||
see common names |
Geography
Country: | Mexico | State/province: | Baja California |
Coordinates: | 28.1° North, 115.2° West (view map) | ||
Paleocoordinates: | 26.7° North, 111.7° West | ||
Basis of coordinate: | based on political unit | ||
Geographic resolution: | local area |
Time
Period: | Neogene | Epoch: | Miocene |
Stage: | Messinian | 10 m.y. bin: | Cenozoic 6 |
Key time interval: | Messinian | ||
Age range of interval: | 7.24600 - 5.33300 m.y. ago | ||
Age estimate: | 8 to 6 Ma (unknown) |
Stratigraphy
Lithology and environment
Primary lithology: | not reported |
Lithology description: no lithological description given | |
Environment: | coastal indet. |
Taphonomy
Modes of preservation: | body,original phosphate |
Size of fossils: | macrofossils |
Preservation of anatomical detail: | good |
Articulated whole bodies: | none |
Associated major elements: | none |
Disassociated major elements: | many |
Disassociated minor elements: | some |
Collection methods and comments
Collection methods: | selective quarrying,field collection |
Reason for describing collection: | taxonomic analysis |
Metadata
Database number: | 45458 | ||
Authorizer: | M. Uhen | Enterer: | M. Uhen |
Modifier: | M. Uhen | Research group: | vertebrate |
Created: | 2004-10-24 11:50:10 | Last modified: | 2015-04-29 15:23:17 |
Access level: | the public | Released: | 2004-10-24 11:50:10 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
11878. | L. G. Barnes. 1984. Fossil odontocetes (Mammalia: Cetacea) from the Almejas Formation, Isla Cedros, Mexico. PaleoBios 42:1-46 [M. Uhen/M. Uhen/M. Uhen] |
Secondary references:
12282 | L. G. Barnes. 1991. The fossil marine vertebrate fauna of the latest Miocene Almejas Formation, Isla Cedros, Baja California, Mexico. Memorias Universidad Autonoma de Baja California Sur: Primera Reunion Internacional Sobre Geologia de la Peninsula de Baja California 147-166 [M. Uhen/M. Uhen/M. Uhen] | |
28389 | L. G. Barnes. 2008. Miocene and Pliocene Albireonidae (Ceatcea, Odontoceti), Rare and unusual fossil dolphins from the Eastern North Pacific Ocean. Natural History of Los Angeles County Science Series 41:99-152 [M. Uhen/M. Uhen/P. Wagner] | |
16892 | C. A. Repenning and R. H. Tedford. 1977. Otarioid seals of the Neogene. United States Geological Survey Professional Paper 992:1-93 [M. Uhen/M. Uhen/P. Holroyd] |