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meaning: "Callaway's lizard"
Named By: Kenneth Carpenter in 1999
Time Period: Early Cretaceous, Aptian
Location: Columbia - Paja Formation
Size: Body up to 8 meters long, Skull 35 centimetres long
Diet: Piscivore
Fossil(s): Known from a skull and partial post cranial remains. Remains for up to two individuals so far known
Classification: | Chordata | Reptilia | Sauropterygia | Plesiosauria | Elasmosauridae |
Also known as: | Alzadasaurus colombiensis | Callawayosaurus |

Callawayasaurus is a genus of plesiosaur from the family Elasmosauridae. When the first Callawayasaurus fossil was first discovered by Samuel Paul Welles in 1962, it was described as Alzadasaurus colombiensis before being moved into its current genus by Kenneth Carpenter in 1999.

Read more about Callawayasaurus at Wikipedia
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