Thylacinus macknessi

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Thylacinus macknessi
Temporal range: Late Oligocene–Early Miocene
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Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Infraclass: Marsupialia
Order: Dasyuromorphia
Family: Thylacinidae
Genus: Thylacinus
Species:
T. macknessi
Binomial name
Thylacinus macknessi
Muirhead, 1992

Thylacinus macknessi lived during the early Miocene and is the oldest known member of the genus Thylacinus . It is named after Brian Mackness, a supporter of Australian vertebrate paleontology.

The Miocene is the first geological epoch of the Neogene Period and extends from about 23.03 to 5.333 million years ago (Ma). The Miocene was named by Charles Lyell; its name comes from the Greek words μείων and καινός and means "less recent" because it has 18% fewer modern sea invertebrates than the Pliocene. The Miocene is preceded by the Oligocene and is followed by the Pliocene.

<i>Thylacinus</i> genus of mammals

Thylacinus is a genus of extinct carnivorous marsupials from the order Dasyuromorphia. The only recent member was the thylacine, commonly known as the Tasmanian tiger or Tasmanian wolf, which became extinct in 1936 due to hunting. The other animals in the group all lived in prehistoric times in Australia. An unidentified species of the genus is known from the Pleistocene of New Guinea.

T. macknessi was a quadrupedal marsupial predator, that in appearance looked similar to a dog with a long snout. Its molar teeth were specialized for carnivory; the cups and crest were reduced or elongated to give the molars a cutting blade.

When the species was first described, only the posterior section of the jaw was known. Two years later in 1995 at the same fossil site, Muirhead and Gillespie found the anterior half of the specimen in a block of limestone. Its fossils have been found in north-western Queensland at the Riversleigh world heritage area at Neville's Garden Site.

Queensland North-east state of Australia

Queensland is the second-largest and third-most populous state in the Commonwealth of Australia. Situated in the north-east of the country, it is bordered by the Northern Territory, South Australia and New South Wales to the west, south-west and south respectively. To the east, Queensland is bordered by the Coral Sea and Pacific Ocean. To its north is the Torres Strait, with Papua New Guinea located less than 200 km across it from the mainland. The state is the world's sixth-largest sub-national entity, with an area of 1,852,642 square kilometres (715,309 sq mi).


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