Bayano 10: Late/Upper Miocene, Panama
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Chondrichthyes
- Myliobatiformes
- Myliobatidae
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Rhinoptera sp.
Cuvier 1829
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Chondrichthyes
- Carcharhiniformes
- Galeocerdidae
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Galeocerdo aduncus
(Agassiz 1835)
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Galeocerdo cuvier
Peron and LeSueur 1822
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Chondrichthyes
- Carcharhiniformes
- Sphyrnidae
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Sphyrna zygaena
(Linnaeus 1758)
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Chondrichthyes
- Carcharhiniformes
- Carcharhinidae
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Carcharhinus brevipinna
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Carcharhinus spp.
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Carcharhinus obscurus
(Le Sueur 1818)
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Carcharhinus plumbeus
(Nardo 1827)
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Physogaleus contortus
(Gibbes 1847)
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Chondrichthyes
- Carcharhiniformes
- Hemigaleidae
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Hemipristis serra
Agassiz 1835
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Chondrichthyes
- Lamniformes
- Alopiidae
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Alopias superciliosus
(Lowe 1840)
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Chondrichthyes
- Lamniformes
- Otodontidae
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Carcharocles megalodon
(Agassiz 1835)
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| recombined as Otodus megalodon | |||||||
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Chondrichthyes
- Lamniformes
- Lamnidae
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Isurus oxyrinchus
Rafinesque 1810
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| see common names | |||||||
Geography
| Country: | Panama | State/province: | Panama |
| Coordinates: | 9.1° North, 78.8° West (view map) | ||
| Paleocoordinates: | 8.9° North, 77.5° West |
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 | ||
| Age estimate: | 10 ± 0.5 Ma (Sr isotope) |
Stratigraphy
| Formation: | Chucunaque | ||||
| Stratigraphy comments: From the text "In much of the Darien Province, the Chucunaque Formation of Shelton (1952) is Messinian in age (7.1–5.6 Ma), although Coates et al. (2004) suggested that it could be older than 9.4 Ma in the western part of their study area on the basis of calcareous nannofossil biostratigraphy. This age is consistent with 87Sr/86Sr dates of 10–9.5 Ma derived from calcerous Lindapectin shells that were deposited in association with the chondrichthyan remains" |
Lithology and environment
| Primary lithology: | lithified silty,sandy not reported |
| Environment: | deep subtidal shelf |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | microfossils |
Collection methods and comments
| Collection excludes: | all microfossils |
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 191996 | ||
| Authorizer: | C. Pimiento | Enterer: | J. Villafana |
| Modifier: | J. Villafana | Research group: | vertebrate |
| Created: | 2018-02-27 06:16:18 | Last modified: | 2018-02-27 06:20:20 |
| Access level: | database members | Released: | 2019-02-27 06:16:18 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 64600. | V. J. Perez, C. Pimiento, A. Hendy, G. González-Barba, G. Hubbell and B. J. MacFadden. 2017. Late Miocene chondrichthyans from Lago Bayano, Panama: Functional diversity, environment and biogeography. Journal of Paleontology 91(3):512-547 [C. Jaramillo/C. Pimiento] |