Name: Gasosaurus ‭(‬Gas lizard‭)‬.
Phonetic: Ga-so-sore-us.
Named By: Z. Dong‭ & ‬Z. Tang‭ ‬-‭ ‬1985.
Classification: Chordata,‭ ‬Reptilia,‭ ‬Dinosauria,‭ ‬Theropoda,‭ ‬Allosauroidea,‭ ‬Sinraptoridae.
Species: G.‭ ‬constructus‭ (‬type‭)‬.
Diet: Carnivore.
Size: Estimated between‭ ‬3.5‭ ‬and‭ ‬4‭ ‬meters long.
Known locations: China,‭ ‬Sichuan Province‭ ‬-‭ ‬Lower Shaximiao Formation.
Time period: Bathonian to Callovian of the Jurassic.
Fossil representation: Only known from post cranial remains,‭ ‬skull is still unknown.

       Gasosaurus was named in honour of the gasoline company that found the Lower Shaximiao Formation,‭ ‬then known as the Dashanpu fossil quarry.‭ ‬Since its naming Gasosaurus has been the subject of uncertainty‭ ‬regarding its validity and position.‭ ‬There have been claims that it may the same as a slightly older genus called Kaijiangosaurus that is also from the same formation,‭ ‬and like this it has been considered to be a megalosauroid.‭ ‬Gasosaurus has also been considered to be one of the earliest known coelurosaurs,‭ ‬the group of theropods that would go on to produce the tyrannosaurs.‭ ‬Most still credit Gasosaurus as being a member of the Sinraptoridae,‭ ‬the theropod group typified by the genus Sinraptor‭ ‬which is a sub group of the Allosauroidea‭ (‬theropods similar to Allosaurus‭)‬.

Further reading
- A new Mid-Jurassic theropod (Gasosaurus constructus gen et sp. nov.) from Dashanpu, Zigong, Sichuan Province, China. - Vertebrata PalAsiatica. 23(1), 77-82. - Z. Dong & Z. Tang - 1985.


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