Punta la Gorda: Zanclean, Ecuador

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Chondrichthyes - Lamniformes - Otodontidae
Carcharocles megalodon (Agassiz 1835)
recombined as Otodus megalodon
Also studied in Pimiento and Balk
Chondrichthyes - Carcharhiniformes - Carcharhinidae
Carcharhinus sp. de Blainville 1816
Carillo-Briceño et al. 2014
Carcharhinus priscus Agassiz 1843
Carcharhinus egertoni Agassiz 1843
Negaprion eurybathrodon (Blake 1862)
Rhizoprionodon taxandriae Leriche 1926
see common names

Geography
Country:Ecuador State/province:Esmeraldas
Coordinates: 0.6° South, 80.5° West (view map)
Paleocoordinates:0.8° South, 79.7° West
Basis of coordinate:stated in text
Geographic resolution:outcrop
Time
Period:Neogene Epoch:Pliocene
Stage:Zanclean 10 m.y. bin:Cenozoic 6
Key time interval:Zanclean
Age range of interval:5.33300 - 3.60000 m.y. ago
Age estimate:5.33 to 3.4 Ma (other)
Stratigraphy
Formation:Onzole Member:Upper
Stratigraphic resolution:bed
Stratigraphy comments: Onzole Fm. considered Miocene in Longbottom (1979). Most recently, Punta La Gorda locality has been considered Pliocene (Aalto and Miller, 1999). Also see Cione et al., 2007.
Lithology and environment
Primary lithology: not reported
Environment:marine indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection excludes:some genera
Reason for describing collection:taxonomic analysis
Museum repositories:BMNH
Taxonomic list comments:Originally proposed to occur in transitional strata between Borbon and Onzole Fms. (Longbottom, 1979). Both were formerly considered Miocene. Most recently, they have been propose to be Pliocene (Aalto and Miller, 1999).
Metadata
Also known as:CRB123b
Database number:151704
Authorizer:C. Jaramillo, M. Uhen Enterer:C. Pimiento, M. Uhen
Modifier:M. Uhen
Created:2013-10-10 16:13:02 Last modified:2019-02-19 12:45:00
Access level:the public Released:2013-10-10 16:13:02
Creative Commons license:CC BY
Reference information

Primary reference:

48478. A. E. Longbottom. 1979. Miocene Sharks' teeth from Ecuador. Bulletin of The British Museum (Natural History) Geology 32:57-70 [C. Jaramillo/C. Pimiento]

Secondary references:

11138 K. R. Aalto and W. Miller. 1999. Sedimentology of the Pliocene Upper Onzole Formation, an inner-trench slope succession in northwestern Ecuador. Journal of South American Earth Sciences 12:69-85 [A. Miller/A. Hendy/A. Hendy]
13595 R. W. Boessenecker, D. J. Eheret, D. J. Long, M. Churchill, E. Martin and S. J. Boessenecker. 2019. The Early Pliocene extinction of the mega-toothed shark Otodus megalodon: a view from the eastern North Pacific. PeerJ 7:e6088 [M. Uhen/M. Uhen/M. Uhen]
61721 J. D. Carillo-Briceño, O. A. Aguilera, and F. Rodriguez. 2014. Fossil Chondrichthyes from the central eastern Pacific Ocean and their paleoceanographic significance. Journal of South American Earth Sciences 51:76-90 [M. Uhen/B. Shipps/M. Uhen]
49081 C. Pimiento and M. Balk. 2015. The extinct giant shark Carcharocles megalodon: A model for understanding deep-time body size trends of marine apex predators. [C. Jaramillo/C. Pimiento/C. Pimiento]