Құрып кеткен Obdurodon туысы

Extinct genus of monotremes
Automatic taxobox
| fossil range = Late Oligocene Late Miocene~
| image = AMNH 128880 Obdurodon skull. jpg
| image caption = Obdurodon dicksoni skull at the American Museum of Natural History
| taxon = Obdurodon
| authority = Woodburne & Tedford 1975 The second specimen discovered there, AMNH 97228, is an upper right molar. The holotype tooth was placed into the newly erected genus Obdurodon upon description in 1975 by American palaeontologists Michael O. Woodburne and Richard H. Tedford. They named the genus from the Latin obduro "persist" and the Greek ὀδών (odṓn) "tooth", in reference to the permanency of the molars, The species name insignis "remarkable" refers to the importance of the new taxon's "distinguishing mark" in the fossil record. The second species named, Obdurodon dicksoni, occasionally called the Riversleigh Platypus, was described by Archer et al (1992) who detailed a skull and several teeth found in lower middle Miocene deposits from the Riversleigh Ringtail Site. The type specimen, an exceptionally well preserved skull, is one of the most intact fossil skulls to be excavated from Riversleigh. The type locality is referred to as the Ringtail Site. Other than the skull and teeth, no other fossilized material of O. dicksoni has been identified. The holotype tooth was discovered in 2012 at the "Two Trees Site", The species was described the following year by a team from the University of New South Wales including Rebecca Pian, Mike Archer, and Suzanne Hand, who published the article in the Journal of Vertebrate Paleontology. The specific name was chosen in honour of an indigenous Australian creation story for the platypus, where a duck named Tharalkoo gives birth to a chimeric creature after being ravished by a rakali. retaining molars and incisors.

O. insignis is thought to have had a similar build to the modern platypus. The holotype is the front molar of the upper right jaw, corresponding to the M2 molar, with the unusual character of six roots.

Obdurodon tharalkooschild is assumed to be very similar in form to a modern platypus, but larger, exceeding Monotrematum in size and length. An illustration of O. dicksoni by Jeanette Muirhead, depicted on a rock in a stream within a rainforest, was published by the magazine Natural History (AMNH) in 1994.