List of Extinct Species of Marine Reptiles

Marine reptiles are cold-blooded vertebrate covered in special skin made up of scales, bony plates, or a combination of both which have become secondarily adapted for an aquatic or semiaquatic life in a marine environment. In this article, we are giving the list of Extinct Species of Marine Reptiles which is very useful for the competitive examinations like UPSC-prelims, SSC, State Services, NDA, CDS, and Railways etc.
Created On: Apr 10, 2018 18:59 IST
Modified On: Apr 10, 2018 18:58 IST
List of Extinct Species of Marine Reptiles
List of Extinct Species of Marine Reptiles

Marine reptiles are cold-blooded vertebrate covered in special skin made up of scales, bony plates, or a combination of both which have become secondarily adapted for an aquatic or semiaquatic life in a marine environment. From 280 million to 230 million years ago (Permian) to the contemporary world, there have been numerous groups of extinct reptiles that adapted to life in the marine ecosystem.

List of Extinct Species of Marine Reptiles

1. Mesosaurs

This type of species lived during the Permian era and considers as the first known aquatic reptiles. Mesosauridae and Stereosternum are the extinct genus of mesosaur marine reptile.

2. Phytosaurs

The term phytosaur" means "plant reptile". It is an extinct group of large, mostly semiaquatic Late Triassic archosauriform reptiles. They were long-snouted and heavily armoured just like modern crocodilians in size, appearance.

3. Squamates

This is a large recent order of reptiles. The lizards and snakes are belonging to the genus of this reptile. The fossil record shows the divergence between anguimorphs, iguanians, and advanced snakes dates back roughly 200 Mya to the Late Triassic/Early Jurassic.

4. Protorosaurias

It belongs to the polyphyletic group of achosauromorph reptiles. It lived in the later Permian (Chaghsingian stage) to the early Late Triassic (Carnian stage) of Asia, Europe, North America.

5. Sauropterygians

It is diverse taxon of aquatic reptiles lived in the era between the later-Permian era and the Mesozoic era.

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6. Ichthyosaurs

The term Ichthyosaurs means fish. This types of reptiles founded in the Mesozoic era.

7. Choristoderes

It is a semi-aquatic diapsid reptile lived in the Middle Jurassic, or possibly Late Triassic, to at least the early Miocene. It has been found in North America, Asia, and Europe, and possibly also North Africa and East Timor.

8. Crocodylomorphs

It belongs to the group of archosaurs that includes the crocodilians. This species of reptiles lived in the Mesozoic and early Cenozoic times.

9. Sea turtles

This species of reptiles belongs to the Testudines genus of reptile lived in the Cenozoic Era. There are seven evolved extant species of sea turtles are: the green, loggerhead, Kemp's Ridley, olive Ridley, hawksbill, Flatback, and leatherback.

10. Thalattosaurs

It belongs to the genus of prehistoric marine reptiles that lived during the mid-late Triassic Period. It has long, paddle-like tails and slender bodies just like a modern lizard.

Of the more than 12,000 species and subspecies of extant reptiles, about 100 have re-entered the ocean. Among them are seven species of sea turtles and about 80 species and subspecies of sea snakes, as well as a few other species that are occasionally or regularly found in brackish waters, including various other snakes, and the saltwater crocodile.

Aquatic Biomes of the World

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