Also known as LP12

Where: South Australia, Australia (31.1° S, 140.2° E: paleocoordinates 46.0° S, 136.1° E)

• coordinate estimated from map

• small collection-level geographic resolution

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

• 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.

• member-level stratigraphic resolution

Environment/lithology: lacustrine; claystone and siltstone

Size class: macrofossils

Primary reference: K. M. Thorn, M. N. Hutchinson, M. S. Y. Lee, N. J. Brown, A. B. Camens and T. H. Worthy. 2021. A new species of Proegernia from the Namba Formation in South Australia and the early evolution and environment of Australian egerniine skinks. Royal Society Open Science 8(201686) [P. Mannion/G. Varnham/G. Varnham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 224282: authorized by Philip Mannion, entered by Grace Varnham on 07.02.2022

Creative Commons license: CC BY (attribution)