Choristodera (from the Greek χωριστός chōristos + δέρη dérē, 'separated neck' ) is an extinct order of semiaquatic diapsid reptiles that ranged from the Middle Jurassic, or possibly Triassic, to the late Miocene (168 to 11.6 million years ago). Choristoderes are morphologically diverse, with the best known … See more Choristodera was erected in 1876, originally as a suborder of Rhynchocephalia by Edward Drinker Cope to contain Champsosaurus, which was described from Late Cretaceous strata of Montana by Cope in the same … See more Choristoderes are universally agreed to be members of Neodiapsida, but their exact placement in the clade is uncertain, due to their mix of primitive and derived features, and a long See more • de Braga M, Rieppel O (1997). "Reptile phylogeny and the interrelationships of turtles". Zoological Journal of the Linnean Society. 120 (3): … See more Choristoderes vary substantially in size, the smallest genera like Cteniogenys and Lazarussuchus had a length of only around 30 cm (12 in), and the largest known choristoderan, See more Choristoderes are exclusively found in freshwater deposits, often associated with turtles, fish, frogs, salamanders and crocodyliformes. They appear to have been almost exclusively found in warm temperate climates, with the range of neochoristoderes … See more Choristoderes must have diverged from all other known reptile groups prior to the end of the Permian period, over 250 million years ago, based … See more WebNov 18, 2024 · The choristoderans (pronounced as Kore-RISS-toe-DEER-rans), also known colloquially as “champsosaurs”, were a peculiar group of prehistoric semi-aquatic freshwater reptiles. Although they have …
choristoderan - English definition, grammar, pronunciation, …
WebMosasaurus is an aquatic lizard which lived approximately 70 million to 65 million years ago during the Late Cretaceous Period. It was first discovered during the mid-18th century in Maastricht, Netherlands and eventually collected by Jean-Baptiste Drouin. However, that fossil was incomplete and consisted of only the skull of the animal. Webchorista: [ ko-ris´tah ] defective development due to, or marked by, displacement of primordial tissue that is histologically normal. sewing a garden
Palaeos Vertebrates: Lepidosauromorpha: Overview
WebChoristodera is an extinct order of semiaquatic diapsid reptiles that ranged from the Middle Jurassic, or possibly Triassic, to the late Miocene . Choristoderes are morphologically … WebAlong with the Archosauromorpha, the Lepidosauromorpha are one of the two main groups of Diapsid reptiles that emerged from younginiform -like ancestors some time during the … WebFeb 24, 2010 · Choristodera is a lineage of semi-aquatic diapsid reptiles, with a fossil record from the Middle Jurassic (Evans 1990 ), or ambiguously the Late Triassic (Storrs and … the true dark history behind thanksgiving