Velocisaurus

Ve-los-e-sore-us.
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Emily Green

Paleobotanist

Emily Green brings the ancient world of plants to life through her insightful research and engaging writing. Her expertise lies in examining how prehistoric vegetation influenced climate patterns and animal evolution.

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Name

Velocisaurus ‭(‬swift lizard‭)‬.

Phonetic

Ve-los-e-sore-us.

Named By

Jos� Bonaparte‭ ‬-‭ ‬1991.

Classification

Chordata,‭ ‬Reptilia,‭ ‬Dinosauria,‭ ‬Saurischia,‭ ‬Theropoda,‭ ‬Abelisauria,‭ ‬Noasauridae.

Diet

Carnivore/Ominvore‭?

Species

V.‭ ‬unicus‭

Size

Tibia 14 centimetres long. Total length roughly estimated about‭ ‬1.2 ‭to 1.5 ‬meters long.

Known locations

Argentina,‭ ‬Patagonia‭ ‬-‭ ‬Bajo de la Carpa Formation.

Time Period

Santonian of the Cretaceous.

Fossil representation

Holotype partial leg and foot, additional limb remains now attributed to the genus.

In Depth

       Though only named from a leg and foot,‭ ‬Velocisaurus seems to have been a particularly fast running dinosaur given that the leg shows clear adaptations for‭ ‬running,‭ ‬hence the name which means‭ ‘‬swift lizard‭’‬.‭ ‬When the dinosaur Velocisaurus was first described by Jos� Bonaparte in‭ ‬1991‭ ‬he speculated that Velocisaurus might have been omnivorous given that the only claw found was straight,‭ ‬and not shaped like that seen in a meat eating theropod dinosaur.‭ ‬This might indicate that Velocisaurus was not running after other dinosaurs to eat,‭ ‬however without a skull and ideally confirmed stomach contents,‭ ‬the exact diet of Velocisaurus can only be guessed at.‭ ‬Velocisaurus is currently considered to be a noasaurid dinosaur,‭ ‬and a particularly close relative of Masiakasaurus from Madagascar.

       Velocisaurus should not be confused with Velociraptor,‭ ‬a small but famous genus of dromaeosaur that lived on the other side of the world.

Further Reading

-‭ ‬Los vertebrados f�siles de la Formaci�n Rio Colorado,‭ ‬de la Ciudad de Neuqu�n y Cercan�as,‭ ‬Cret�cico Superior,‭ ‬Argentina.‭ [‬The fossil vertebrates of the Rio Colorado Formation,‭ ‬of the city of Neuqu�n and surroundings,‭ ‬Upper Cretaceous,‭ ‬Argentina‭]‬.‭ ‬-‭ ‬Revista del Museo Argentino de Ciencias Naturales‭ “‬Bernardino Rivadavia‭” ‬e Instituto Nacional de Investigaci�n de las Ciencias Naturales.‭ ‬Paleontolog�a‭ ‬4:‭ ‬17-123.‭ ‬-‭ ‬Jos� Bonaparte‭ ‬-‭ ‬1991. – A new specimen of Velocisaurus unicus (Theropoda, Abelisauroidea) from the Paso C�rdoba locality (Santonian), R�o Negro, Argentina. – Journal of Vertebrate Paleontology. 36 (4): e1119156. – F. B. Egli, F. L. Agnol�n & Fernando Novas – 2016.

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