Bayano 2: Late/Upper Miocene, Panama

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Chondrichthyes - Myliobatiformes - Myliobatidae
Mobula spp.
Chondrichthyes - Myliobatiformes - Dasyatidae
Dasyatis sp. Rafinesque 1810
Chondrichthyes - Carcharhiniformes - Triakidae
Mustelus sp.
Chondrichthyes - Carcharhiniformes - Carcharhinidae
Carcharhinus brevipinna
Carcharhinus spp.
Carcharhinus (aff. Carcharhinus) macloti (Muller and Henle 1839)
Carcharhinus obscurus (Le Sueur 1818)
Chondrichthyes - Carcharhiniformes - Sphyrnidae
Sphyrna lewini (Griffith and Smith 1834)
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:191988
Authorizer:C. Pimiento Enterer:J. Villafana
Research group:vertebrate
Created:2018-02-27 05:34:42 Last modified:2018-02-27 05:34:42
Access level:database members Released:2019-02-27 05:34:42
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]