Thylacoleo crassidentatus
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.

Roderick T. Wells ,Aaron B. Camens · CC BY 4.0 · 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
- ThylacoleoPBDB
- Diet
- omnivorePBDB, for Marsupialia
- Life habit
- scansorialPBDB, for Marsupialia
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Mammalia
Time the record covers
At least 1 million years on record.
The record covers at least 3.6 Mya to 2.58 Mya. No occurrence read is dated outside 5.333 Mya to 774 ka.
2 occurrences of Thylacoleo crassidentatus on record, most of them in the Pliocene. 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
2 occurrences- Pliocene50%
- Pleistocene50%
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.
Thylacoleo crassidentatus and its relatives
PlioceneWhere Thylacoleo crassidentatus and its relatives were recorded in the Pliocene.
Found in the same rock
37 taxa- Antechinus2 sites
- "Dasycerus" worboysi n. sp.1 site
- Baringa nelsonensis1 site
- Cercartetus1 site
- Darcius duggani1 site
- Diprotodon optatum1 site
- Kurrabi merriwaensis1 site
- Lasiorhinus1 site
- Macroderma koppa1 site
- Macropodinae1 site
- Macropus (Macropus) giganteus1 site
- Mastacomys1 site
- Murinae1 site
- Palorchestes parvus1 site
- Palorchestes pickeringi1 site
- Perameles bougainville1 site
- Perameles bowensis1 site
- Perameles gunnii1 site
- Phascolarctos stirtoni1 site
- Protemnodon bandharr1 site
- Protemnodon brehus1 site
- Protemnodon devisi1 site
- Pseudocheirus1 site
- Pseudocheirus stirtoni1 site
The Paleobiology Database records 2 sites for Thylacoleo crassidentatus, 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
2 references- Early Pleistocene mammals from the Nelson Baylocal fauna, Portland, Victoria, Australia1
- The Big Sink local fauna; a lower Pliocene mammalian fauna from the Wellington Caves complex, Wellington, New South Wales1
Each of the 2 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. 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 crassidentatus
- Source
- Wikipedia/Commons
- Credit
- Roderick T. Wells ,Aaron B. Camens
- Licence
- CC BY 4.0
- Commercial use
- the licence allows it
No 3D scan of Thylacoleo crassidentatus 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 itThylacoleo through timeFormations of the PlioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Bartholomai 1962