Tarkarooloo (Oligocene of Australia)

Where: South Australia, Australia (34.4° S, 139.0° E: paleocoordinates 49.2° S, 134.9° E)

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

• The accepted age for the Namba formation has varied from late Oligocene-early Miocene. Woodburne et al. 1994 suggested a late Oligocene age for the correlated faunas of Zone A in the Etadunna Formation. Martin 1990 also suggested that an early Miocene age was unlikely based on pollen data. Megirian et al. 2010 also used a late Oligocene age of 28-24Ma for the Namba Formation.

Environment/lithology: lacustrine; lithology not reported

• clay mineral smectite were rich where the teeth were discovered.

Size class: mesofossils

Primary reference: T. Flannery and T. H. V. Rich. 1986. Macropodoids from the Middle Miocene Namba Formation, South Australia, and the Homology of Some Dental Structures in Kangaroos. Journal of Paleontology 60(2):418-447 [M. Uhen/V. Choe/V. Choe]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 181814: authorized by Mark Uhen, entered by Victoria Choe on 04.10.2016

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Theriamorpha - Balbaridae
Nambaroo tarrinyeri Flannery and Rich 1986 diprotodont marsupial
right upper molar, left upper molar, trigonid