''Wonambi'' is an extinct

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

of madtsoiid

snake Snakes are elongated, Limbless vertebrate, limbless, carnivore, carnivorous reptiles of the suborder Serpentes . Like all other Squamata, squamates, snakes are ectothermic, amniote vertebrates covered in overlapping Scale (zoology), scales. Ma ...

s that lived in late

Neogene The Neogene ( ), informally Upper Tertiary or Late Tertiary, is a geologic period and system that spans 20.45 million years from the end of the Paleogene Period million years ago ( Mya) to the beginning of the present Quaternary Period Mya. ...

to late

Quaternary The Quaternary ( ) is the current and most recent of the three periods of the Cenozoic Era in the geologic time scale of the International Commission on Stratigraphy (ICS). It follows the Neogene Period and spans from 2.58 million years ...

Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...

. Species of ''Wonambi'' were constrictor snakes unrelated to Australian

pythons The Pythonidae, commonly known as pythons, are a family of nonvenomous snakes found in Africa, Asia, and Australia. Among its members are some of the largest snakes in the world. Ten genera and 42 species are currently recognized. Distribution ...

Description

''Wonambi'' was a fairly large snake, with the type species (''W. naracoortensis'') exceeding long and the other species (''W. barriei'') reaching less than long. It was a non-venomous, constrictor snake, and may have been an

ambush predator Ambush predators or sit-and-wait predators are carnivorous animals that capture or trap prey via stealth, luring or by (typically instinctive) strategies utilizing an element of surprise. Unlike pursuit predators, who chase to capture prey us ...

that killed its prey by

constriction Constriction is a method used by various snake species to kill or subdue their prey. Although some species of venomous and mildly venomous snakes do use constriction to subdue their prey, most snakes which use constriction lack venom. The snake i ...

. 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 Naracoorte is a town in the Limestone Coast region of South Australia, approximately 336 kilometres south-east of Adelaide and 100 kilometres north of Mount Gambier, South Australia, Mount Gambier on the Riddoch Highway (A66). History Before the ...

, the first extinct snake to be found in Australia. It was given the name Wonambi from the description, by the local Aboriginal people, of a

serpent Serpent or The Serpent may refer to: * Snake, a carnivorous reptile of the suborder Serpentes Mythology and religion * Sea serpent, a monstrous ocean creature * Serpent (symbolism), the snake in religious rites and mythological contexts * Serp ...

of the

Dreamtime The Dreaming, also referred to as Dreamtime, is a term devised by early anthropologists to refer to a religio-cultural worldview attributed to Australian Aboriginal mythology, Australian Aboriginal beliefs. It was originally used by Francis Ja ...

. This serpent, a

mythological Myth is a folklore genre consisting of narratives that play a fundamental role in a society, such as foundational tales or origin myths. Since "myth" is widely used to imply that a story is not objectively true, the identification of a narrat ...

being commonly referred to by both Aboriginal people and Europeans as the

Rainbow Serpent The Rainbow Serpent or Rainbow Snake is a common deity often seen as the creator God, known by numerous names in different Australian Aboriginal languages by the many different Aboriginal peoples. It is a common motif in the art and religion ...

, was often held responsible for the creation of major features of the landscape. The

Wagyl The Wagyl (also written Waugal and Waagal and variants) is the Noongar manifestation of the Rainbow Serpent in Australian Aboriginal mythology, from the culture based around the south-west of Western Australia. The Noongar describe the Wagyl as ...

of the

Western Australian Western Australia (commonly abbreviated as WA) is a state of Australia occupying the western percent of the land area of Australia excluding external territories. It is bounded by the Indian Ocean to the north and west, the Southern Ocean to th ...

Noongar The Noongar (, also spelt Noongah, Nyungar , Nyoongar, Nyoongah, Nyungah, Nyugah, and Yunga ) are Aboriginal Australian peoples who live in the south-west corner of Western Australia, from Geraldton on the west coast to Esperance on the so ...

people is thought to correlate to the South Australian people's Wonambi. It is cognate with the genus ''

Yurlunggur ''Yurlunggur'' is a genus of fossil snake in the extinct family Madtsoiidae. This genus was a part of the extinct megafauna of Australia, and contains the species ''Yurlunggur camfieldensis''. ''Y. camfieldensis'' was a large apex predator t ...

'', found at Riversleigh in Queensland and in the Northern Territory. 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 The Pleistocene ( , often referred to as the ''Ice age'') is the geological Epoch (geology), epoch that lasted from about 2,580,000 to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was fina ...

Ice Age An ice age is a long period of reduction in the temperature of Earth's surface and atmosphere, resulting in the presence or expansion of continental and polar ice sheets and alpine glaciers. Earth's climate alternates between ice ages and gree ...

period, in natural sun-traps beside local waterholes, where they would ambush

kangaroo Kangaroos are four marsupials from the family Macropodidae (macropods, meaning "large foot"). In common use the term is used to describe the largest species from this family, the red kangaroo, as well as the antilopine kangaroo, eastern gre ...

wallaby A wallaby () is a small or middle-sized Macropodidae, macropod native to Australia and New Guinea, with introduced populations in New Zealand, Hawaii, the United Kingdom and other countries. They belong to the same Taxonomy (biology), taxon ...

and other prey coming to the water to drink. Mapping such locations in Western Australia, has been found to be closely associated with areas the

people regard as Waugal

sacred site Sacred space, sacred ground, sacred place, sacred temple, holy ground, or holy place refers to a location which is deemed to be sacred or hallowed. The sacredness of a natural feature may accrue through tradition or be granted through a bless ...

Tim Flannery Timothy Fridtjof Flannery (born 28 January 1956) is an Australian mammalogist, palaeontologist, environmentalist, Conservation biology, conservationist, Exploration, explorer, author, Science communication, science communicator, activist and p ...

claims that this animal, along with other

Australian megafauna The term Australian megafauna refers to the megafauna in Australia during the Pleistocene Epoch. Most of these species became extinct during the latter half of the Pleistocene, and the roles of human and climatic factors in their extinction are ...

, became extinct (partly) as a result of activities of

Aboriginal Australians Aboriginal Australians are the various Indigenous peoples of the Australian mainland and many of its islands, such as Tasmania, Fraser Island, Hinchinbrook Island, the Tiwi Islands, and Groote Eylandt, but excluding the Torres Strait Islands ...

(for example, hunting and

firestick farming Fire-stick farming, also known as cultural burning and cool burning, is the practice of Aboriginal Australians regularly using fire to burn vegetation, which has been practised for thousands of years. There are a number of purposes for doing this ...

).Flannery, Tim (1994). '' The Future Eaters: An Ecological History of the Australasian Lands and People'',

References

{{Taxonbar, from=Q141289 Pleistocene reptiles Miocene reptiles Pliocene reptiles Pleistocene reptiles of Australia Pleistocene genus extinctions Snakes of Australia Fossil taxa described in 1976 Reptiles described in 1976

Description

Taxonomy and naming

Ecology

See also

References