Paracyclotosaurus (meaning "Near Wheeled Lizard") is an extinctgenus of temnospondyl, which would have appeared similar to today's salamander – but much larger, measuring up to 2.45 m (8.0 ft) long and weighing between 159 and 365 kg (351 and 805 lb).[1] It lived in the Middle Triassic period, about 235 million years ago, and fossils have been found in Australia, India, and South Africa.
Although they could live on dry land, Paracyclotosaurus probably spent most of its time in water. They had flattened bodies and elongated heads, almost 60 centimetres (2 ft) long, that vaguely resembled those of modern crocodiles.[2]
Discovery and namingedit
Paracyclotosaurus davidi restoration
The type species P. davidi is only known from one complete specimen recovered from Australia. It was discovered by quarry miners in a brick pit in St. Peters in Sydney, New South Wales. The discovery, made in 1910, was from a large ironstone nodule within Ashfield Shale which contained the nearly complete skeleton. The reconstruction was finished in July 1914, and was initially determined to be closely related to Cyclotosaurus.[3] The original bone of the P. davidi holotype specimen was in very bad condition, but after the bone was removed from the hard ironstone matrix, casts were made from the matrix mold, and a mold was made from those casts. Casts of the original bone show a fair amount of detail.
^Hart, L.J.; Campione, N.E.; McCurry, M.R. (2022). "On the estimation of body mass in temnospondyls: a case study using the large-bodied Eryops and Paracyclotosaurus". Palaeontology. 65 (6): e12629. doi:10.1111/pala.12629.
^Palmer, D., ed. (1999). The Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals. London: Marshall Editions. p. 53. ISBN1-84028-152-9.
^ abD. Watson (1958). "A New Labyrinthodont (Paracyclotosaurus) From Trias of New South Wales". Bulletin of the British Museum (Natural History). 3.
Patricia Vickers-Rich and Thomas Hewett Rich 1993, Wildlife of Gondwana, ISBN0-7301-0315-3 Reed.
External linksedit
The Paleobiology Database: Paracyclotosaurus
January 01, 1970
paracyclotosaurus, this, article, needs, additional, citations, verification, please, help, improve, this, article, adding, citations, reliable, sources, unsourced, material, challenged, removed, find, sources, news, newspapers, books, scholar, jstor, october,. This article needs additional citations for verification Please help improve this article by adding citations to reliable sources Unsourced material may be challenged and removed Find sources Paracyclotosaurus news newspapers books scholar JSTOR October 2022 Learn how and when to remove this message Paracyclotosaurus meaning Near Wheeled Lizard is an extinct genus of temnospondyl which would have appeared similar to today s salamander but much larger measuring up to 2 45 m 8 0 ft long and weighing between 159 and 365 kg 351 and 805 lb 1 It lived in the Middle Triassic period about 235 million years ago and fossils have been found in Australia India and South Africa ParacyclotosaurusTemporal range Middle Triassic 247 2 242 0 Ma PreꞒ Ꞓ O S D C P T J K Pg N Paracyclotosaurus davidi in the Natural History Museum of London Scientific classification Domain Eukaryota Kingdom Animalia Phylum Chordata Order Temnospondyli Suborder Stereospondyli Clade Capitosauria Family Mastodonsauridae Genus ParacyclotosaurusWatson 1958 Species P davidi Watson 1958 type P crookshanki Damiani 2001 P morganorum Damiani and Hancox 2003 Although they could live on dry land Paracyclotosaurus probably spent most of its time in water They had flattened bodies and elongated heads almost 60 centimetres 2 ft long that vaguely resembled those of modern crocodiles 2 Discovery and naming edit nbsp Paracyclotosaurus davidi restoration The type species P davidi is only known from one complete specimen recovered from Australia It was discovered by quarry miners in a brick pit in St Peters in Sydney New South Wales The discovery made in 1910 was from a large ironstone nodule within Ashfield Shale which contained the nearly complete skeleton The reconstruction was finished in July 1914 and was initially determined to be closely related to Cyclotosaurus 3 The original bone of the P davidi holotype specimen was in very bad condition but after the bone was removed from the hard ironstone matrix casts were made from the matrix mold and a mold was made from those casts Casts of the original bone show a fair amount of detail Paracyclotosaurus davidii was named after Sir Edgeworth David the man who arranged for the British Museum Natural History to acquire the specimen 3 nbsp Paracyclotosaurus davidi skeletal diagram nbsp Paracyclotosaurus davidi skeletal reconstruction nbsp Paracyclotosaurus crookshanki life restorationReferences edit nbsp Wikispecies has information related to Paracyclotosaurus nbsp Wikimedia Commons has media related to Paracyclotosaurus nbsp Paleontology portal Hart L J Campione N E McCurry M R 2022 On the estimation of body mass in temnospondyls a case study using the large bodied Eryops and Paracyclotosaurus Palaeontology 65 6 e12629 doi 10 1111 pala 12629 Palmer D ed 1999 The Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals London Marshall Editions p 53 ISBN 1 84028 152 9 a b D Watson 1958 A New Labyrinthodont Paracyclotosaurus From Trias of New South Wales Bulletin of the British Museum Natural History 3 Patricia Vickers Rich and Thomas Hewett Rich 1993 Wildlife of Gondwana ISBN 0 7301 0315 3 Reed External links editThe Paleobiology Database Paracyclotosaurus Paracyclotosaurus davidi at the Natural History Museum Retrieved from https en wikipedia org w index php title Paracyclotosaurus amp oldid 1212652463, wikipedia, wiki, book, books, library,
