Wakaleo

Wakaleo (indigenous Australian waka, "little", "small", and Latin leo, "lion") was a genus of medium-sized thylacoleonids that lived in Australia in the late Oligocene and Miocene epochs. Although much smaller than its close relative the marsupial lion (Thylacoleo carnifex), Wakaleo would have been a successful hunter. It had teeth specially designed for cutting and stabbing. The genus is from an extinct family of Vombatiformes, so is distantly related to the herbivorous wombats.[2]

Wakaleo
Temporal range: Miocene
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Infraclass: Marsupialia
Order: Diprotodontia
Family: †Thylacoleonidae
Genus: †Wakaleo
Clemens & Plane, 1974[1]
Species

†W. alcootaensis
†W. oldfieldi
†W. pitikantensis (Rauscher, 1987)
†W. schouteni
†W. vanderleuri Clemens and Plane, 1974 (type)

Taxonomy

Wakaleo was erected in 1974 by W. A. Clemens and M. Plane.[1] Five species are known:

  • Wakaleo alcootaensis was found in the Miocene Waite Formation in the Northern Territory in 1974. It was slightly larger than the other two species.
  • Wakaleo oldfieldi was found by a group of scientists working in the Miocene Wipijiri Formation in southern Australia in 1971. They found a nearly complete left dentary which included a few well-preserved teeth.
  • Wakaleo pitikantensis described by Rauscher as the type of genus Priscileo in 1987[3] and placed with this genus in a revision published in 2017.[4]
  • Wakaleo schouteni Gillespie, Archer & Hand, 2017, a mid-sized species of the genus.[4]
  • Wakaleo vanderleuri was first found by field workers in 1967 in the Miocene Camfield Beds in the Northern Territory. Many more specimens have been found since then.

Description

Wakaleo is a genus of the thylacoleonid family of predatory mammals, which are known as marsupial lions. The size of Wakaleo species increases from smaller animals in the early part of the fossil record, an apparent morphocline that terminated in a predator able to kill animals much larger than itself.[4]

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References
  1. Clemens, W.A.; Plane, M. (1974). "Mid-Tertiary Thylacoleonidae (Marsupialia, Mammalia)". Journal of Paleontology. 48 (4): 653–660. ISSN 0022-3360.
  2. The Book of Life. Stephen Jay Gould, John Barber, Peter Andrews. Norton, W.W.& Company Inc. 2001. ISBN 0-393-32156-8
  3. B. Rauscher. 1987. Priscileo pitikantensis, a new genus and species of thylacoleonid marsupial (Marsupialia: Thylacoleonidae) from the Miocene Etaduma formation, South Australia. Possums and Opossums: Studies in Evolution 2:423-432
  4. Gillespie, A.K.; Archer, M.; Hand, S.J. (6 December 2017). "A new Oligo–Miocene marsupial lion from Australia and revision of the family Thylacoleonidae". Journal of Systematic Palaeontology. 17 (1): 59–89. doi:10.1080/14772019.2017.1391885.
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