Callawayasaurus colombiensis
- Time
- 119.6–121.4 million years ago
- Period
- Unknown
- Known sites
- 2

Summary
Callawayasaurus is a genus of plesiosaur from the family Elasmosauridae. When the holotype was first described by Samuel Paul Welles in 1962, it was described as Alzadasaurus colombiensis before being moved into its current genus by Kenneth Carpenter in 1999.
Source: Wikipedia - Callawayasaurus
Known Sites
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