North American Plesiosaurs: Elasmosaurus, Cimoliasaurus, and Polycotylus

North American Plesiosaurs: Elasmosaurus, Cimoliasaurus, and Polycotylus
Author: Samuel Wendell Williston
Publisher: Good Press
Total Pages: 32
Release: 2022-01-06
Genre: Nature
ISBN:

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This is a detailed study of the Plesiosaurs, a group of giant, long-necked marine reptiles that belong to the order Plesiosauria. These animals emerged in the Late Triassic period and became especially predominant during the Jurassic period.

North American Plesiosaurs

North American Plesiosaurs
Author: Samuel Wendell Williston
Publisher:
Total Pages: 16
Release: 1906
Genre: Plesiosauria
ISBN:

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North American Plesiosaurs

North American Plesiosaurs
Author: Samuel Wendell Williston
Publisher:
Total Pages: 77
Release: 1903
Genre: Cimoliasaurus
ISBN:

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North American Plesiosaurs

North American Plesiosaurs
Author: Samuel Wendell Williston
Publisher:
Total Pages: 718
Release: 1907
Genre: Plesiosauria
ISBN:

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North American Plesiosaurs

North American Plesiosaurs
Author: Samuel Wendell Williston
Publisher:
Total Pages:
Release: 1903
Genre: Plesiosauria
ISBN:

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Reptiles

Reptiles
Author: Nicolae Sfetcu
Publisher: Nicolae Sfetcu
Total Pages: 320
Release: 2014-05-13
Genre: Pets
ISBN:

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Today there are 6,800 reptile species on earth; the major groups are alligators and crocodiles, turtles, lizards, and snakes. Reptiles are tetrapods and amniotes, animals whose embryos are surrounded by an amniotic membrane. Today they are represented by four surviving orders: crocodilia (crocodiles, caimans and alligators), sphenodontia (tuataras from New Zealand, squamata (lizards, snakes and amphisbaenids - "worm-lizards"), and testudines (turtles).