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Can anyone identify this jawbone? Answered

Found in Tasmania , any help appreciated. I can't think of any animal native let alone foreign.
Tusk or why is very sharp almost arrowhead like.

Any help appreciated.

11 Replies

BurfBest Answer (author)2012-01-15

It's a Bennett's kangaroo lower mandible.

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steveastrouk (author)Burf2012-01-15


How did you find THAT ?


...or is the anatomy of the Tasmanian tree Kangaroo a bit of a hobby ?

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Burf (author)steveastrouk2012-01-15

the Animal Planet network.
I saw a documentary on Australian/Tasmanian marsupials a couple of years ago and remembered it making mention of the unusual dentition of the Bennett's kangaroo. A quick Google image search found a nice diagram of the mandible. :)

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rickharris (author)steveastrouk2012-01-15

Geee, everyone knows that one!!!! Well done Burf - But at least it was in my list!

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wildfrog (author)2012-02-03

I am in Melbourne and just found this in my compost bin,(hence the dark colour) so I put it in, which means its either a rat or a ringtail possum. We thought possum but came searching the web to ID it. Not identical but pretty close. This one is the same size but with more of a curve to it. Wow never knew those sweet little possums had tusks!!!

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freeza36 (author)2012-01-15

thycalines are extinct...... to big for a wonbat/tasmanian devil..... tree kangaroo?

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Kiteman (author)2012-01-15

The Natural History Museum has dedicated identification forums. You have to register, but it's free, and you'll be able to upload the photo to the "teeth and skulls" forum.

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Jayefuu (author)2012-01-15

Some kind of pig is my guess.

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rickharris (author)2012-01-15

This is a list of indigenous Tasmanian mammals.

ORDER MONOTREMATA (Echidnas and Platypus)
Family Ornithorhychidae (Platypus)

Platypus Ornithorhynchus anatinus
Family Tachyglossidae (Echidnas)

Short-beaked echidna Tachyglossus aculeatus
ORDER POLYPROTODONTA (Carnivorous Marsupials and Bandicoots)
Family Dasyuridae (Carnivorous Marsupials)

Family Dasyuridae (Carnivorous Marsupials)

Tasmanian devil Sarcophilus harrisii
Spotted-tail quoll Dasyurus maculatus
Eastern quoll Dasyurus viverrinus
Dusky antechinus Antechinus swainsonii
Swamp antechinus Antechinus minimus
White-footed dunnart Sminthopsis leucopus

Family Thylacinidae (Thylacine)

Thylacine (Tasmanian tiger) Thylacinus cynocephalus
Family Peramelidae (Bandicoots)

Family Peramelidae (Bandicoots)

Eastern barred bandicoot Perameles gunni
Southern brown bandicoot Isoodon obesulus

ORDER DIPROTODONTA (Possums, Kangaroos and Wombats)
Superfamily Macropodoidea (Macropods)

Superfamily Macropodoidea (Macropods)

Tasmanian bettong Bettongia gaimadi
Long-nosed potoroo Potorous tridactylus
Forester (Eastern grey) kangaroo Macropus giganteus
Bennetts (Red-necked) wallaby Macropus rufogriseus
Tasmanian pademelon Thylogale billardierii

Family Petauridae


Common ringtail possum Pseudocheirus peregrinus
Sugar glider Petaurus breviceps

Family Phalangeridae


Common brushtail possum Trichosurus vulpecula

Family Burramyidae


Eastern pygmy Possum Cercartetus nanus
Little pygmy possum Cercartetus lepidus

Family Vombatidae (Wombats)

Wombat Vombatus ursinus


Family Vespertilionidae

Little forest bat Vespadelus vulturnis
Southern forest bat Vespadelus regulus
Large forest bat Vespadelus darlingtoni
Chocolate wattled bat Chalinolobus morio
Goulds wattled bat Chalinolobus gouldii
Lesser long-eared bat Nyctophilus geoffroyi
Tasmanian long-eared bat Nyctophilus sp
Eastern falsistrelle Falsistrellus tasmaniensis

ORDER RODENTIA (Rats and Mice)

ORDER RODENTIA (Rats and mice)
Family Muridae

Water rat Hydromys chrysogaster
Long-tailed mouse Pseudomys higginsi
New Holland mouse Pseudomys novaehollandiae
Broad-toothed mouse Mastacomys fucus
Swamp rat Rattus lutreolus


Family Otariidae (Eared Seals)

Australian fur-seal Arctocephalus pusillus
New Zealand fur Seal Arctocephalus fosteri

Family Phocidae (True Seals)

Southern elephant seal Mirounga leonina
Leopard seal Hydrurga leptonyx

ORDER CETACEA (Whales and Dolphins)

ORDER CETACEA (Whales and dolphins)
Family Delphinidae (Dolphins)

Longfin pilot whale Globicephala melaena
Killer whale Orcinus orca
False killer whale Pseudorca crassidens
Common dolphin Delphinus delphis
Bottlenose dolphin Tursiops truncatus

Family Physeteridae (Sperm Whales)

Sperm whale Physeter catodon
Family Balaenidae (Right Whales)

Southern right whale Eubalena australis
Pygmy right whale Caperea marginata
Humpback Megaptera novaeangliae

To that you should add the common domesticated mammals

Pigs (maybe but a bit small)

I wasn't able to find a picture of anything that had such a forward facing canine tooth so possibly it was deformed somewhat.

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steveastrouk (author)rickharris2012-01-15

It ain't a whale or seal, and its not a Tasmanian Devil - my first guess ;-)
So that shortens the list a bit

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