Plesiosaurus - Wikipedia
Plesiosaurus (Greek: πλησίος (plesios), near to + σαῦρος (sauros), lizard) is a genus of extinct, large marine sauropterygian reptile that lived during the Early Jurassic. It is known by nearly complete skeletons from the Lias of England.
Plesiosaur | Size, Habitat, & Facts | Britannica
Plesiosaur, any of a group of long-necked marine reptiles found as fossils from the late Triassic Period into the late Cretaceous Period. They inhabited marine areas in the Atlantic near Europe and in the Pacific Ocean, including the waters near Australia, North America, and Asia.
Plesiosaur - Wikipedia
The first plesiosaurian genus, the eponymous Plesiosaurus, was named in 1821. Since then, more than a hundred valid species have been described. In the early twenty-first century, the number of discoveries has increased, leading to an improved understanding of their anatomy, relationships and way of life.
Plesiosaurs, the Beautiful Bottom-Feeders - National Geographic
2011年6月6日 · They called their monster Plesiosaurus. A paddle-legged marine reptile akin to the recently-discovered, shark-shaped animals known as ichthyosaurs, the new animal was cast as “a link between the...
Plesiosaurs 101 | National Geographic - YouTube
0:00 / 3:22. While dinosaurs roamed the Earth, marine reptiles in the order Plesiosauria swam in our planet's prehistoric oceans. Find out which creatures belonged in thi...
Plesiosaurus, the Long-Necked Marine Reptile - ThoughtCo
2019年2月7日 · As you may already have surmised from its name, Plesiosaurus is the eponymous member of the family of marine reptiles known as plesiosaurs, which were characterized by their sleek bodies, wide flippers, and relatively small …
Plesiosaurs 101 - Education
2023年10月19日 · While dinosaurs roamed the Earth, marine reptiles in the order Plesiosauria swam in our planet's prehistoric oceans. Find out which creatures belonged in this group, how they grew to incredible sizes, and how they've captivated both scientists and storytellers alike.
Plesiosaurus | fossil marine reptile | Britannica
Plesiosaurus, an early plesiosaur, was about 4.5 metres (15 feet) long, with a broad, flat body and a relatively short tail. It swam by flapping its fins in the water, much as sea lions do today, in a modified style of underwater “flight.”
Plesiosaurs - Natural History Museum
2015年9月14日 · Plesiosaurs. Plesiosaurs were a group of marine reptiles that evolved from land-living reptiles in the Triassic period about 210 million years ago. They too, like ichthyosaurs had four flippers, a remnant of their terrestrial ancestors.
Plesiosaur - New World Encyclopedia
Major types of plesiosaur are primarily distinguished by head and neck size. The Plesiosauroidea, such as Cryptoclididae, Elasmosauridae, and Plesiosauridae had long necks and may have been bottom-feeders, in shallow waters. The neck of Elasmosaurus was very long, twice the length of the body.