USGS 5906a, Chagres River (Miocene of Panama)

Where: Panama (9.2° N, 79.6° W: paleocoordinates 9.0° N, 78.7° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Chagres Formation, Messinian (7.2 - 5.3 Ma)

• Only information is "Pliocene series" (plausibly from the latest Miocene Chagres Formation)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; limestone

Size classes: macrofossils, mesofossils

Collected by D.F. MacDonald in 1911; reposited in the USNM

Primary reference: M. J. Rathbun. 1918. Decapod crustaceans from the Panama region. Bulletin of the United States National Museum 103:123-184 [C. Schweitzer/S. Yost/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 135458: authorized by Carrie Schweitzer, entered by Samantha Yost on 26.10.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

 Balanomorpha - Balanidae
"Balanus glyptopoma" = Arossia glyptopoma
"Balanus glyptopoma" = Arossia glyptopoma Pilsbry 1916 barnacle