Nimiokoala fossil map
Where fossils of Nimiokoala 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 →
| Group | Early mammals |
|---|---|
| Lived | 23.04–15.98 million years ago (Aquitanian to Burdigalian) |
| Periods | Neogene |
| Family | Phascolarctidae |
| Named by | Black and Archer 1997 |
| Fossil records | 14 occurrences at 3 locations (PBDB) |
| Found in | Australia |
| Rock formations | txn:40173, System B |
About Nimiokoala
Nimiokoala greystanesi is an extinct marsupial, closely related to the extant koala, that inhabited northwestern Queensland in the Early and Middle subepochs of the Miocene (23–16 million years ago). It is the only species assigned to the genus Nimiokoala. Along with species of sister genus Litokoala, it is the smallest representative of family Phascolarctidae. Based on cladistic analysis, Nimiokoala is one of the more basal genera of Phascolarctidae. It died out due to climate change rendering the environment more arid. It probably had a more generalized diet than that of the modern species, but its exact food preferences are unknown.
Text in “About” is quoted from the Wikipedia article Nimiokoala (revision 1380491204), 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: Q1189148.
