Caldera, Bahia Inglesa Unit 1: Late/Upper Miocene, Chile
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Actinopteri
- Istiophoriformes
- Istiophoridae
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Istiophoridae indet.
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1 specimen | |||||||||
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Reptilia
- Theropoda
- Spheniscidae
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Spheniscidae indet.
Bonaparte 1831
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1 specimen | |||||||||
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Reptilia
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Crocodyliformes indet.
Hay 1930
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Walsh and Suárez 2005 | |||||||||
| SGO−PV−834 (right dentary fragment) | ||||||||||
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Mammalia
- Carnivora
- Phocidae
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Acrophoca sp.
Muizon 1981
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5 elements | |||||||||
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Mammalia
- Cetacea
- Balaenopteridae
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Balaenoptera sp.
Lacépède 1804
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Canto et al. 2010 | |||||||||
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Mammalia
- Cetacea
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Odontoceti indet.
Flower 1867
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1 individual | |||||||||
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Mammalia
- Cetacea
- Phocoenidae
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Phocoenidae indet.
(Gray 1825)
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Canto et al. 2010 | 1 specimen | ||||||||
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Mammalia
- Cetacea
- Pontoporiidae
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Pontistes sp.
Burmeister 1885
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Canto et al. 2010 | 2 specimens | ||||||||
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cf. Brachydelphis sp.
Muizon 1988
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Gutstein et al. 2005 | 5 specimens | ||||||||
| juvenile | ||||||||||
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= Brachydelphis sp.
Muizon 1988
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Canto et al. 2010 | |||||||||
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Pliopontos sp.
Muizon 1983
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Canto et al. 2010 | 2 specimens | ||||||||
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Mammalia
- Cetacea
- Kogiidae
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Kogiidae indet.
Miller 1923
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Canto et al. 2010 | 1 specimen | ||||||||
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Echinoidea
- Clypeasteroida
- Mellitidae
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Encope chilensis
Philippi 1887
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Grant and Hertlein 1938 | |||||||||
| see common names | ||||||||||
Geography
| Country: | Chile | State/province: | Atacama |
| Coordinates: | 27.1° South, 70.9° West (view map) | ||
| Paleocoordinates: | 27.4° South, 68.8° West | ||
| Basis of coordinate: | stated in text | ||
| Geographic resolution: | local area |
Time
| Period: | Neogene | Epoch: | Miocene |
| 10 m.y. bin: | Cenozoic 6 | ||
| Key time interval: | Late/Upper Miocene | ||
| Age range of interval: | 11.63000 - 5.33300 m.y. ago |
Stratigraphy
| Formation: | Bahía Inglesa | Member: | Unit 1 | ||
| Local order: | bottom to top | ||||
| Stratigraphy comments: Rojo 1985 regarded the bed as Miocene
Walsh and Naish 2002 uses Diatoms to state that it spans the Miocene-Pliocene boundary and extends as far as the middle Pliocene. | |||||
Lithology and environment
| Primary lithology: | coarse conglomerate |
| Includes fossils? | Y |
| Lithology description: coarse, conglomeratic Charrier and Croft 2015: Entre los sedimentos más finos exsisten intercalaciones de diatomitas, fosforitas y cenizas volcánicas retrabajadas (Rojo, 1985; Marquardt et al. 2000). | |
| Environment: | lagoonal/restricted shallow subtidal |
| Geology comments: lagoonal/restricted shallow subtidal, submarine canyon, upper continental slope to outer shelf
Charrier and Croft 2015: Según los autores mencionados, estos depósitos se acumularon en la plataforma continental en ambientes sublitorales a neríticos a profundidades comprendidas entre 0 y 500 m. Algunos niveles clásticos gruesos corresponderían a flujos de detritos provenientes de áreas emergidas | |
Taphonomy
| Modes of preservation: | body,original phosphate |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | some macrofossils,some microfossils |
| Reason for describing collection: | biostratigraphic analysis |
Metadata
| Also known as: | Franja costera de Caldera | ||
| Database number: | 80365 | ||
| Authorizer: | M. Uhen, P. Mannion | Enterer: | M. Uhen, P. Mannion |
| Modifier: | G. Varnham | ||
| Created: | 2008-04-15 11:00:58 | Last modified: | 2022-03-02 04:12:43 |
| Access level: | database members | Released: | 2008-10-15 11:00:58 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 27020. | S. Walsh and D. Naish. 2002. Fossil seals from late Neogene deposits in South America: A new pinniped (Carnivora, Mammalia) assemblage from Chile. Palaeontology 45(4):821-842 [M. Uhen/M. Uhen] |
Secondary references:
| 34357 | J. Canto, J. Yanez, and J. Rovira. 2010. Estado actual del conocimiento de los mamíferos fósiles de Chile. Estudios Geologicos 66(2):255-284 [M. Uhen/M. Uhen/M. Uhen] | |
| 32966 | U. S. Grant and L. G. Hertlein. 1938. The West American Cenozoic Echinoidea. Publications of the University of California at Los Angeles in Mathematical and Physical Sciences 2:1-225 [L. Villier/L. Villier] | |
| 28634 | C. Gutstein, M. A. Cozzuol, and C. L. Schultz. 2005. Juvenil de cf. Brachydelphis (Mammalia, Cetacea, Pontoporiidae) de la Formcion Bahia Inglesia, Neogeno de Chile. Boletim de Resumos, II Congresso Latino-Americano de Paleontologia de Vertebrados 131-132 [M. Uhen/M. Uhen] | |
| 77272 | A. Valenzuela Toro and C. Gutstein. 2015. Mamíferos marinos (Excepto Cetáceos) fósiles de Chile. Publicación Ocasional del Museo Nacional de Historia Natural, Chile 63:385-400 [M. Uhen/M. Uhen] | |
| 46536 | S. A. Walsh and M. Suárez. 2005. First post−Mesozoic record of Crocodyliformes from Chile. Acta Palaeontologica Polonica 50(3):595-600 [P. Mannion/P. Mannion] |