Punta la Colorada (Pliocene of Ecuador)

Also known as CRB123

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)

• Age after Boessenecker et al., 2019.

•Onzole Fm. considered Miocene in Longbottom (1979). Most recently, Punta La Colorada locality has been considered Pliocene by Cione et al. 2007, based on Aalto and Miller, 1999.

• 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 151705: authorized by Carlos Jaramillo, entered by Catalina Pimiento on 10.10.2013

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
 Squaliformes - Dalatiidae
Isistius triangulus Probst 1879 elasmobranch
 Plagiostomi - Squalidae
"Carcharocles megalodon" = Otodus megalodon
"Carcharocles megalodon" = Otodus megalodon Agassiz 1843 megalodon
Also studied in Pimiento and Balk
 Lamniformes - Odontaspididae
Odontaspis acutissima Agassiz 1843 sand tiger shark
 Carchariniformes - Carcharhinidae
Negaprion eurybathrodon Blake 1862 lemon shark
Galeocerdo aduncus Agassiz 1843 tiger shark
Carcharhinus sp. de Blainville 1816 requiem shark
Carcharhinus egertoni Agassiz 1843 requiem shark
Carcharhinus priscus Agassiz 1843 requiem shark
 Carchariniformes - Hemigaleidae
"Hemipristis serra" = Hemipristis heteropleurus
"Hemipristis serra" = Hemipristis heteropleurus Agassiz 1844 ground shark