|Named By:||Swinton in 1930|
|Time Period:||199-195 Ma Early Jurassic|
|Location:||England - Blue Lias Formation.|
|Size:||Up to 4.5 meters long|
|Classification:||| Chordata | Reptilia | Sauropterygia | Plesiosaura | Pliosauroidea | Rhomaleosauridae ||
Macroplata (meaning "big plate") is an extinct genus of Early Jurassic basal plesiosaur which grew up to 4.5 metres (15 ft) in length. Like other plesiosaurs, Macroplata probably lived on a diet of fish, using its sharp needle-like teeth to catch prey. Its shoulder bones were fairly large, indicating a powerful forward stroke for fast swimming. Macroplata also had a relatively long neck, twice the length of the skull, in contrast to pliosaurs.
Plesiosaurus longirostris was once assigned to this genus, but it has been re-assigned to Hauffiosaurus, as H. longirostris.