Ogmodirus
| Ogmodirus Temporal range: Late Cretaceous,  | |
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| Paddle bone of KUVP 441 | |
| Cervical series of KUVP 441 | |
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| Genus: | †Ogmodirus Williston and Moodie, 1913 | 
| Binomial name | |
| †Ogmodirus martini Williston & Moodie, 1913 | |
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Ogmodirus is an extinct genus of plesiosaur found in the Cenomanian-Turonian (Late Cretaceous) Greenhorn Limestone of Kansas. The type species, O. martini, was named by Samuel Wendell Williston and Roy Lee Moodie in 1913.