Punta la Gorda (Pliocene of Ecuador)

Also known as CRB123b

Where: Esmeraldas, Ecuador (0.6° S, 80.5° W: paleocoordinates 0.8° S, 79.7° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Upper Member (Onzole Formation), Zanclean (5.3 - 3.6 Ma)

• 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.

• bed-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Reposited in the BMNH

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

Purpose of describing collection: taxonomic analysis

PaleoDB collection 151704: authorized by Carlos Jaramillo, entered by Catalina Pimiento on 10.10.2013, edited by Mark Uhen

Creative Commons license: CC BY (attribution)

Taxonomic list

• 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).
Chondrichthyes
 Lamniformes - Otodontidae
"Carcharocles megalodon" = Otodus megalodon
"Carcharocles megalodon" = Otodus megalodon Agassiz 1843 megalodon
Also studied in Pimiento and Balk
 Carchariniformes - Carcharhinidae
Negaprion eurybathrodon Blake 1862 lemon shark
Carcharhinus sp. de Blainville 1816 requiem shark
Carcharhinus egertoni Agassiz 1843 requiem shark
Carcharhinus priscus Agassiz 1843 requiem shark
Rhizoprionodon taxandriae Leriche 1926 sharpnose shark