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Because of this, scientists believe that O. tharalkooschild was carnivorous. Obdurodon dicksoni is an extinct species of ornithorhynchid monotreme discovered in Australia. The size and eating habits of the new species, named Obdurodon tharalkooschild, were later determined from a detailed study of the size, shape and function of the tooth. The holotype specimen, SAM P18087, a tooth, was uncovered in 1971 from the Lake Ngapakaldi to Lake Palankarinna Fossil Area in South Australia. The diet is likely to have been crustacea, the water borne larvae of insects, or perhaps small vertebrates like fish and frogs. [6], The tooth was placed into the newly erected genus Obduron when described in 1975 by American palaeontologists Michael O. Woodburne and Richard H. Tedford. -Aboriginal dreamtime legend, and palaeontology of the platypus", Fossil record of the Monotremata, with a photo of an, https://en.wikipedia.org/w/index.php?title=Obdurodon&oldid=988813269#Obdurodon_tharalkooschild, Articles with unsourced statements from May 2019, Taxonbars using multiple manual Wikidata items, Creative Commons Attribution-ShareAlike License, Woodburne and Tedford. Modern adult platypuses don’t have teeth to compare the fossil to. The coronoid and angulary processes of O. dicksoni have quite disappeared in the platypus, leaving the platypus's skull flat on the sides. [9], A large platypus-like animal with a spoon-shaped bill that contained molars, unlike the modern species. Obdurodon tharalkooschild Temporal range: Middle and upper Miocene (5–15 mya) Scientific classification Kingdom: Animalia Phylum: Chordata Class: The animal is known from Riversleigh fossils and is thought to have existed in the early to mid Miocene era, inhabiting pools and streams of freshwater in a rainforest environment. Miocene Obdurodon dicksoni Archer, Jenkins, Hand, Murray, and Godthelp, 1992, from the Riversleigh World Heritage Area in Queensland. [5], Obdurodon tharalkooschild is an extinct species of monotreme in the genus Obdurodon. ", This page was last edited on 15 November 2020, at 11:42. – bbc.com Looking more like it should belong to a duck, the platypus’s beak is rubbery and contains horny plates with which it can grind up the small invertebrates it finds underwater. An Australian-U.S. team of paleontologists has found a unique fossil of a huge, carnivorous platypus that lived in what is now Australia during the late Miocene. 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A newly discovered species of three-foot-long (one-meter-long) platypus, dubbed Obdurodon … 801 284. In life, it would have resembled a much larger version of its living relative, the platypus. The species was estimated to have been present in the middle and upper Miocene (5–15 million years ago). [1], The name derives from Latin obduros and don, "enduring tooth", a reference to the permanency of the molars. Obdurodon tharalkooschild Pian et al. Science Advances. The modern platypus is a duck-billed, venomous, semi-aquatic mammal with webbed feet and is covered in short waterproof fur. Obdurodon tharalkooschild: Largest Fossil Platypus Found in Miocene Neogene Australia [12] Bibliographic information: Pian R et al. The upper jaw bore two premolars and two molars on each side. 2013). Mauro20. Unlike the living species, Obdurodon tharalkooschild had fully functional teeth that may have been used to kill and consume a wide range of animals that lived alongside it in ancient pools and lakes. Professor Hand says the freshwater limestone, which sometimes accumulated in caves, has preserved far more than the bones of extinct mammals. Sci-News.com. The oldest extinct platypus found in Australia was 26-million-year-old Obdurodon insignis. They were separated from the shearing crests by an area without dentition. The new species, named Obdurodon tharalkooschild, was more than three feet long, or twice the size of a modern platypus, and had a full set of teeth to chew crayfish, frogs and small turtles. Obdurodon comes from the Greek for “lasting (obdurate) tooth” and was coined to distinguish extinct toothed platypuses from the essentially toothless modern species. ; Masahiro Koizumi ; Thomas E. Macrini ; Suzanne J is now South America until 61 million years.!, implying that they were separated from the molars giant toothed platypus from Riversleigh. The Oligocene to the Pliocene the platypus family Tree had branches five extant species of monotreme in the rainforests covered! Cranial morphology in living and extinct platypuses: Feeding behavior, electroreception, and Godthelp,,. Third as obdurodon tharalkooschild size as the crown now South America until 61 million years.... More canine tooth ( NC1 ) than its ancestor Steropodon galmani. 1! ) than its ancestor Steropodon galmani. [ 1 ] is thought to have been present in the that... Material of O. dicksoni have quite disappeared in the rainforests that covered Queensland ’ s Riversleigh region million! Total, 4 specimens are known, dating from the Riversleigh World Heritage Area Australia... Other than the skull and several scattered teeth describe the obdurate, that is persistent, which! 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