Plesiosaur - Wikipedia
The Plesiosauria[ a ][ 4 ] or plesiosaurs are an order or clade of extinct Mesozoic marine reptiles, belonging to the Sauropterygia. Plesiosaurs first appeared in the latest Triassic Period, possibly in the Rhaetian stage, about 203 million years ago. [ 5 ] .
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.
Plesiosaurs 101 | National Geographic - YouTube
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...
Plesiosaurs 101 - Education
2023年10月19日 · Plesiosaurs 101. 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.
Plesiosaurs, the Beautiful Bottom-Feeders - National Geographic
2011年6月6日 · Plesiosaurs, the Beautiful Bottom-Feeders. By Riley Black. June 6, 2011. • 8 min read. In 1821, British geologists Henry De la Beche and William Conybeare presented a bizarre,...
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.”
Plesiosaur - New World Encyclopedia
Plesiosaurs (Greek: plesios meaning "near" or "close to" and sauros meaning "lizard") were carnivorous, aquatic (mostly marine) reptiles that lived from the Triassic to the Cretaceous periods. They were the largest aquatic animals of their time.
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: Overview, Size, Habitat, & Other Facts
Plesiosaurs were fascinating marine reptiles that roamed Earth’s oceans during the Mesozoic era. Their social behavior and reproduction patterns remain a topic of interest and research. Here’s a closer look at what is known about their group dynamics and reproduction cycle.