Bayano 11: Late/Upper Miocene, Panama

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Chondrichthyes - Carcharhiniformes - Sphyrnidae
Sphyrna zygaena (Linnaeus 1758)
Chondrichthyes - Carcharhiniformes - Carcharhinidae
Negaprion brevirostris Poey 1868
Carcharhinus brevipinna
Carcharhinus spp.
Carcharhinus obscurus (Le Sueur 1818)
Chondrichthyes - Lamniformes - Otodontidae
Carcharocles megalodon (Agassiz 1835)
recombined as Otodus megalodon
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:11.60800 - 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:191997
Authorizer:C. Pimiento Enterer:J. Villafana
Research group:vertebrate
Created:2018-02-27 06:21:24 Last modified:2018-02-27 06:21:24
Access level:database members Released:2019-02-27 06:21:24
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]