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A primitive ichthyosaur that retained a lizard-like body discovered in Chaohu, China. It was also one of the smallest ichthyosaurs, being from 70 to 180 cm long and an estimated weight of 10 kg. Chensaurus [1] [9] Mazin Suteethorn Buffetaut Jaeger Helmcke-Ingavat. 1991. Jr. synonym. N/A N/A Junior synonym of Chaohusaurus. Chonespondylus [9 ...
Ichthyosauria [a] is an order of large extinct marine reptiles sometimes referred to as "ichthyosaurs", although the term is also used for wider clades in which the order resides. Ichthyosaurians thrived during much of the Mesozoic era; based on fossil evidence, they first appeared around 250 million years ago ( Ma ) and at least one species ...
Shonisaurus is a genus of very large ichthyosaurs.At least 37 incomplete fossil specimens of the type species, Shonisaurus popularis, have been found in the Luning Formation of Nevada, USA.
Other ichthyosauriforms were the Ichthyopterygia, containing the Ichthyosauria and allies. The last ichthyosaurs probably became extinct in the middle Cretaceous . Their relationships with other reptiles are unresolved, due to their highly derived morphology and presumed ancient origins, even in their earliest known representatives, [ 3 ...
Cast of the first known complete Ichthyosaurus specimen (originally referred to as Proteosaurus), which was destroyed during WW2. Ichthyosaurus was the first complete fossil to be discovered in the early 19th century by Mary Anning in England; [9] the holotype of I. communis, no coll. number given, [10] was a fairly complete specimen discovered by Mary and Joseph Anning around 1814 in Lyme ...
Ichthyosauridae is an extinct family of thunnosaur ichthyosaurs from the latest Triassic and Early Jurassic (Rhaetian to Pliensbachian stages) of Europe, and possibly also from the middle Early Cretaceous (Hauterivian or Barremian stage) of Iraq.