Macroplata Temporal range: Early Jurassic,
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Restoration of Macroplata tenuiceps | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Reptilia |
Superorder: | †Sauropterygia |
Order: | †Plesiosauria |
Family: | †Rhomaleosauridae |
Genus: | †Macroplata Swinton, 1930 |
Type species | |
†Macroplata tenuiceps Swinton, 1930
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Macroplata (meaning "big plate") is an extinct genus of Early Jurassic rhomaleosaurid plesiosaur which grew up to 4.65 metres (15.3 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. It is known from a nearly complete skeleton NHMUK PV R5488 (formerly BMNH R 5488) from the Blue Lias Formation (Hettangian) of Harbury, Warwickshire, UK.[1]
A different species, Macroplata longirostris (previously called Plesiosaurus longirostris), which lived somewhat later, during the Toarcian stage, was also included in the genus; however, in 2011, Benson et al. reclassified it as a pliosaurid in the genus Hauffiosaurus, H. longirostris.[2]
Ketchum2010
was invoked but never defined (see the help page).