Rio Negro (Miocene of Argentina)

Where: Argentina (40.7° S, 64.9° W: paleocoordinates 40.9° S, 63.2° W)

• coordinate based on political unit

• local area-level geographic resolution

When: Messinian (7.2 - 5.3 Ma)

• "Rionegrense"

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Primary reference: D. Gondar. 1974. La presencia de cetaceos Physteridae en el Terciario Superior ("Rionegrense") de la Provincia de Rio Negro. Actas del Primer Congreso Argentino de Paleontologia y Bioestratigrafia 2:349-356 [M. Uhen/M. Uhen/J. Alroy]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 13092: authorized by Mark Uhen, entered by Mark Uhen on 21.01.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

 Arcida - Arcidae
"Arca bonplandiana" = Potiarca bonplandiana1
"Arca bonplandiana" = Potiarca bonplandiana1 d'Orbigny 1842 ark
 Pectinida - Pectinoidae
"Pecten patagonensis" = Chesapecten patagonensis1
"Pecten patagonensis" = Chesapecten patagonensis1 d'Orbigny 1842 scallop
 Ostreida - Ostreidae
"Ostrea alvarezii" = Cubitostrea alvarezii1, "Ostrea patagonica" = Crassostrea patagonica1, "Ostrea ferrarisi" = Crassostrea patagonica1
"Ostrea alvarezii" = Cubitostrea alvarezii1 d'Orbigny 1842 oyster
"Ostrea patagonica" = Crassostrea patagonica1 d'Orbigny 1842 oyster
"Ostrea ferrarisi" = Crassostrea patagonica1 d'Orbigny 1842 oyster
 Cardiida - Veneridae
Venus munsteri1 venus clam
 Odontoceti -
Aulophyseter rionegrensis n. sp. Gondar 1974 toothed whale
 Odontoceti - Ziphiidae
Ziphiidae indet.2 Gray 1850 beaked whale
It is not clear where this specimen is from.