Thylacoleo
Thylacoleo is an extinct genus of carnivorous marsupials that lived in Australia from the late Pliocene to the Late Pleistocene, often known as marsupial lions. They were the largest and last members of the family Thylacoleonidae, occupying the position of apex predator within Australian ecosystems. The largest and last species, Thylacoleo carnifex, had an estimated average weight of 101 to 130 kg, approaching the weight of a modern lioness.

Uncredited · via Wikipedia/Commons. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.
On record
Recorded, not inferred- Sits inside
- ThylacoleonidaePBDB
- Diet
- omnivorePBDB, for Marsupialia
- Life habit
- scansorialPBDB, for Marsupialia
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Mammalia
- Length
- 114 cmWikidata
- Mass
- 130 kgWikidata
Time the record covers
At least 3.4 million years on record.
The record covers at least 3.6 Mya to 129 ka. No occurrence read is dated outside 5.333 Mya to 0 Mya.
35 occurrences of Thylacoleo on record, most of them in the Pleistocene. Bar height is expected occurrences, not a count: each fossil is spread across the span it is dated to, so a tall narrow bar means tight dating and a low wide one means loose.
When
35 occurrences- Pliocene10%
- Pleistocene90%
- Holoceneunder 1%
These are dates about fossils, not the animal: the record can only begin after it arose and end before it died out, so either end may reach further. Shares are expected occurrences: a fossil dated to a span is counted partly in each period it straddles. More on what this infers.
Found in
2 formations
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The named rock units Thylacoleo has been recovered from, largest first. Drawn where the rock is now, not where it formed. 33 occurrences have no formation on record, which is common for older literature.
Thylacoleo and its relatives
PleistoceneWhere Thylacoleo and its relatives were recorded in the Pleistocene.
Found in the same rock
266 taxa- Macropus13 sites
- Thylacinus cynocephalus13 sites
- Macropus (Macropus) giganteus12 sites
- Simosthenurus occidentalis11 sites
- Protemnodon10 sites
- Vombatus ursinus10 sites
- Zygomaturus trilobus10 sites
- Dasyurus viverrinus9 sites
- Diprotodon optatum9 sites
- Mastacomys9 sites
- Phascolarctos cinereus9 sites
- Pseudomys9 sites
- Sthenurus andersoni9 sites
- Bettongia8 sites
- Macropus rufogriseus8 sites
- Perameles gunnii8 sites
- Protemnodon brehus8 sites
- Sarcophilus laniarius8 sites
- Simosthenurus8 sites
- Simosthenurus maddocki8 sites
- Varanus8 sites
- Cercartetus nanus7 sites
- Isoodon obesulus7 sites
- Protemnodon anak7 sites
The Paleobiology Database records 33 sites for Thylacoleo, and this reads all of them. The number is how many of those sites it was catalogued from too. The 24 sharing the most are listed.
This is not a list of everything alive at the time. It is only what has come out of the same ground as this animal and been written down.
Entered from
27 references- Pleistocene fossil vertebrate sites of the South East region of South Australia4
- Early Pleistocene mammals from the Nelson Baylocal fauna, Portland, Victoria, Australia3
- Marsupial fossils from Wellington Caves, New South Wales; the historic and scientific significance of the collections in the Australian Museum, Sydney3
- Pleistocene fossil vertebrate sites of the South East region of South Australia II2
- A diverse Pleistocene marsupial trackway assemblage from the Victorian volcanic plains, Australia1
- Pedal morphology of the marsupial lion Thylacoleo carnifex (Diprotodontia: Thylacoleonidae) from the Pleistocene of Australia1
- Palaeontological excavation and taphonomic investigation of the late Pleistocene fossil deposit in Grant Hall, Victoria Fossil Cave, Naracoorte, South Australia1
- Mesozoic to early Quaternary mammal faunas of Victoria, South-East Australia1
- In Situ Taphonomic Investigation of Pleistocene Large Mammal Bone Deposits from The Ossuaries, Victoria Fossil Cave, Naracoorte, South Australia1
- Systematics and evolution of the sthenurine kangaroos1
- The Big Sink local fauna; a lower Pliocene mammalian fauna from the Wellington Caves complex, Wellington, New South Wales1
- Magnetic polarity stratigraphy of Pliocene and Pleistocene fossil vertebrate localities in southeastern Australia1
Each of the 35 occurrences read was entered from one of these publications, ordered by how many each accounts for. This is not a search for papers mentioning the name. 15 further references are not listed. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content1
Picture of Thylacoleo
- Source
- Wikipedia/Commons
- Credit
- nobody named on the record
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
No 3D scan of Thylacoleo was found in Sketchfab.
Smithsonian Open Access and MorphoSource were not reached for this taxon, so this list is what the others held rather than everything there is.
The description on this site
- Source
- Wikipedia, “Thylacoleo”
- Licence
- CC BY-SA 4.0
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itThylacoleonidae through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Owen 1852