Where: South Australia, Australia (31.2° S, 140.2° E: paleocoordinates 46.0° S, 136.2° E)

• coordinate stated in text

When: Namba Formation, Late/Upper Oligocene (28.4 - 23.0 Ma)

• top of unnamed member 1; Beck et al. (2020): The Namba Formation has been correlated with the Etadunna Formation, which has been estimated to be 26-24 Ma old (i.e. latest Oligocene) on the basis of isotopic, foraminiferal, magnetostratigraphic and radiometric (Rb-Sr dating of illite) data. More recently, the Etadunna Formation has been proposed to be 26.1-23.6 Ma old based on a best-fit age-model of magnetostratigraphic data. The Pinpa Local Fauna is the oldest of the three distinct faunal units recovered from stratigraphic levels in the Namba Formation, and has been correlated with the oldest faunal zone (Zone A) of the Etadunna Formation, which has been dated as 25.3-24.9 Ma old (chrons 7An and 7Ar) based on magnetostratigraphy. In summary, available evidence suggests a probable age of between approximately 26 and 25 MYA for the Pinpa Local Fauna.

• bed-level stratigraphic resolution

Environment/lithology: lacustrine; claystone

Size class: macrofossils

Preservation: original phosphate

Primary reference: R. H. Tedford and M. O. Woodburne. 1987. The Ilardiidae, a new family of vombatiformes marsupials from Miocene strata of South Australia and an evolution of the homology of molar cusps in the diprotodontia. In M. Archer (ed.), Possums and Opossums: Studies in Evoultion 2:401-418 [J. Alroy/A. Garcia Selles]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 137258: authorized by John Alroy, entered by Albert Garcia Selles on 13.12.2012

Creative Commons license: CC BY (attribution)