| Thylacinus yorkellus Temporal range: late Miocene - early Pliocene
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|---|---|
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| Holotype left dentary | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Infraclass: | Marsupialia |
| Order: | Dasyuromorphia |
| Family: | †Thylacinidae |
| Genus: | †Thylacinus |
| Species: | †T. yorkellus
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| Binomial name | |
| †Thylacinus yorkellus | |
Thylacinus yorkellus is a fossil species of carnivorous marsupial, a sister species of the recently extinct Thylacinus cynocephalus, the Tasmanian tiger, both of which existed on mainland Australia.