Where: Entre Rios, Argentina (31.9° S, 60.6° W: paleocoordinates 32.1° S, 57.1° W)

• small collection-level geographic resolution

When: upper Member (Parana Formation), Serravallian (13.8 - 11.6 Ma)

• The fossil-bearing horizon is interpreted as late Miocene (‘‘pre-Huayquerian’’) in age (see below, Section 5.1)

•

•The age of Paraná Formation was fi rst assigned by D’Orbigny (1842) to the Tertiary, and today this unit has been dated as the Upper Miocene by vertebrate and invertebrate fossils (Reinhart 1976; Rossi de García 1966; Aceñolaza 1976; Zabert and Herbst 1977; Herbst and Zabert 1987; Cozzuol 1993). Also, fossil mollusk fauna have suggested Middle to Lower Late Miocene ages (Del Río 1990, 1991, 2000; Martínez and Del Río 2005). Cozzuol 2006: the Parana formation is Serravalian and very early Tortonian in age.

Environment/lithology: shallow subtidal; calcareous sandstone

Size class: macrofossils

Primary reference: A. M. Candela, R. A. Bonini, and J. I. Noriega. 2012. First continental vertebrates from the marine Parana ́ Formation (Late Miocene, Mesopotamia, Argentina): Chronology, biogeography, and paleoenvironments. Geobios 45:515-526 [M. Uhen/M. Uhen/M. Uhen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 199484: authorized by Mark Uhen, entered by Mark Uhen on 24.01.2019

Creative Commons license: CC BY (attribution)