Wonambi

Wonambi
Temporal range: Miocene-Pleistocene 23.03–0.012 Ma
Wonambi naracoortensis and Thylacoleo
Scientific classification
Kingdom:Animalia
Phylum:Chordata
Class:Reptilia
Order:Squamata
Suborder:Serpentes
Family:†Madtsoiidae
Genus:†Wonambi
Type species
Wonambi naracoortensis
Smith, 1976
Species

†Wonambi barriei Scanlon, 2000
†Wonambi naracoortensis Smith, 1976

Wonambi is a genus that consisted of two species of very large prehistoric snakes. These species were not pythons like Australia's other large constrictors of the genus Morelia; they are classified in the extinct family Madtsoiidae. This genus was a part of the extinct megafauna of Australia. It went extinct during the Late Pleistocene.

Diversity

The type species is Wonambi naracoortensis, a five to six metre long snake; the only other known species is Wonambi barriei.[1]

Description

Wonambi is a genus of non-venomous, constrictor snakes, it seems to have been an ambush predator that killed its prey by constriction. The head of the animal was small, restricting the size of its prey.

Taxonomy and naming

Wonambi naracoortensis was first described from fossils collected at Naracoorte, South Australia, the first extinct snake to be found in Australia.[2]

It was given the name Wonambi from the description, by the local Aboriginal people, of a serpent of the Dreamtime. This serpent, a mythological being commonly referred to by both Aboriginal people and Europeans as the Rainbow Serpent, was often held responsible for the creation of major features of the landscape. The Wagyl of the Western Australian Noongar people is thought to correlate to the South Australian people's Wonambi. It is cognate with the Yurlunggur genus, found at Riversleigh in Queensland and in the Northern Territory, which was up to 9 meters long with a body about 30 centimeters in diameter.

The family of this species, Madtsoiidae, became extinct in other parts of the world around 55 million years ago, but new species continued to evolve in Australia. These species are the last known to have existed, becoming extinct in the last 50,000 years.

Ecology

Wonambi naracoortensis lived during the Pleistocene Ice Age period, in natural sun-traps beside local waterholes, where they would ambush kangaroo, wallaby and other prey coming to the water to drink. For this reason, children were forbidden in Aboriginal culture to play at such places, and only allowed to visit when accompanied by an adult. Mapping such locations in Western Australia, has been found to be closely associated with areas the Noongar people regard as Waugal sacred sites.

Tim Flannery claims that this animal, along with other Australian megafauna, became extinct (partly) as a result of activities of the Australian Aborigines (for example, hunting and firestick farming).[3]

See also

References

  1. ↑ John D. Scanlon; Michael S. Y. Lee (January 2000). "The Pleistocene serpent Wonambi and the early evolution of snakes. FIGURE 2. Selected elements of Wonambi exhibiting phylogenetically important characters". Nature. 403: 416–420. doi:10.1038/35000188.
  2. ↑ Ehmann, Harald (1993). "33. Family Boidae". In C.G.Glasby G.J.B.Ross P.L.Beesley. Amphibia and Reptilia (PDF). Fauna of Australia. 2A (Online ed.). Australian Government Publishing Service. p. 15. ISBN 978-0-644-32429-8.
  3. ↑ Flannery, Tim (1994). The Future Eaters: An Ecological History of the Australasian Lands and People, ISBN 0-8021-3943-4 ISBN 0-7301-0422-2
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