Macroplata

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Macroplata
Temporal range: 199–195Ma
Early Jurassic
Macroplata BW.jpg
Macroplata tenuiceps from the Early Jurassic of Europe
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Sauropsida
Order: Plesiosauria[1]
Genus: Macroplata
Species: M. tenuiceps
Binomial name
Macroplata tenuiceps
Swinton, 1930

Macroplata (mack-roh-PLAH-tah), 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.[2]

Two species have been included in this genus: Macroplata tenuiceps, the type species, which lived during the Hettangian age (earliest Jurassic), and Macroplata longirostris, which lived somewhat later, during the Toarcian. However, it is thought that M. longirostris may be a distinct form that should be placed in a separate genus[citation needed]. In 2011, M. longirostris became a new species of Hauffiosaurus, so "M. longirostris" is now H. longirostris.

References[edit]

  1. ^ Ketchum HF, Benson RBJ. Global interrelationships of Plesiosauria (Reptilia, Sauropterygia) and the pivotal role of taxon sampling in determining the outcome of phylogenetic analyses. Biological Reviews
  2. ^ Palmer, D., ed. (1999). The Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals. London: Marshall Editions. p. 76. ISBN 1-84028-152-9. 

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