Alto Guayacán (Miocene to of Costa Rica)

Where: Limón, Costa Rica (10.0° N, 83.5° W: paleocoordinates 9.8° N, 82.3° W)

• coordinate based on political unit

When: Upper Member (Guayacán Formation), Late/Upper Miocene to Late/Upper Miocene (11.6 - 3.6 Ma)

• Alto Guayacán beds

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Primary reference: C. A. Laurito. 1996. El género Isistius (Squalidae) en el Alto Guayacán. Formación Uscari (Mioceno Superior-Plioceno Inferior), provincia de Limón, Costa Rica. Revista Geológica de América Central 19-20:87-92 [M. Uhen/M. Uhen/M. Uhen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 220760: authorized by Mark Uhen, entered by Mark Uhen on 14.06.2021

Creative Commons license: CC BY (attribution)

Taxonomic list

Chondrichthyes
 Squaliformes - Dalatiidae
Isistius triangulus Probst 1879 shark
 Chimaeriformes - Chimaeridae
Chimaera sp. Linnaeus 1758 chimaera