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Nimbacinus fossil map

Where fossils of Nimbacinus have been found, shown on the Earth as it looked about 15 million years ago and on today’s map.

Dots are fossil collections recorded in the Paleobiology Database. The “then” view moves today’s fossil sites back to their positions 15 million years ago (the time slice nearest the median age of the fossils) using the Merdith et al. (2021) plate model; positions are approximate. Open on the timeline map →

Nimbacinus
Image: Douglass S. Rovinsky​, Alistair R. Evans, Justin W. Adams, CC BY 4.0, via Wikimedia Commons
GroupEarly mammals
Lived23.04–11.63 million years ago (Aquitanian to Serravallian)
PeriodsNeogene
FamilyThylacinidae
Named byMuirhead and Archer 1990
Fossil records4 occurrences at 2 locations (PBDB)
Found inAustralia
Rock formationsCamfield Beds, txn:40102

About Nimbacinus

Nimbacinus is an extinct genus of thylacinid that contains two species of carnivorous, quadrupedal marsupials in Australia both of which are extinct:

Nimbacinus dicksoni Muirhead & Archer, 1990

Nimbacinus peterbridgei Churchill, Archer & Hand, 2024

Like all thylacinids, Nimbacinus dicksoni was a dog-like marsupial, though its smaller size makes its appearance more comparable to that of a fox. Unlike its relatives, its jaws were likely strong enough for it to take down prey larger than itself.

The name of the genus combines "Nimba" and "cinus", derived from a word meaning "little" in the Wanyi language, indigenous peoples associated with the Riversleigh fossil site, and the Ancient Greek word "kynos", meaning "dog".

Text in “About” is quoted from the Wikipedia article Nimbacinus (revision 1369757708), licensed under CC BY-SA 4.0; introduction excerpted verbatim, formatting removed. Ages, family, authority and fossil records: Paleobiology Database, accessed 23 October 2026. Ages are those of the rock layers the fossils were found in. Wikidata: Q142903.

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