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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.
Elasmosaurus differed from all other plesiosaurs by having 72 neck vertebrae; more may have been present but were later lost to erosion or after excavation. Only Albertonectes had more neck vertebrae, 76, and the two are the only plesiosaurs with a count higher than 70; more than 60 vertebrae is very derived (or "advanced") for plesiosaurs. [14 ...
The probable food source of plesiosaurs varied depending on whether they belonged to the long-necked "plesiosauromorph" forms or the short-necked "pliosauromorph" species. The extremely long necks of "plesiosauromorphs" have caused speculation as to their function from the very moment their special build became apparent.
Peter's vision of a sheet with animals, the vision painted by Domenico Fetti (1619) Illustration from Treasures of the Bible by Henry Davenport Northrop, 1894. According to the Acts of the Apostles, chapter 10, Saint Peter had a vision of a vessel (Greek: σκεῦος, skeuos; "a certain vessel descending upon him, as it had been a great sheet knit at the four corners") full of animals being ...
Plesiosaur fossils can be found all over the world, Marx said. The combination of both smooth and scaly skin is unusual, and it had different functions, the researchers said.
Plesiosaur gastroliths from Tropic Shale. A gastrolith, also called a stomach stone or gizzard stone, is a rock held inside a gastrointestinal tract. Gastroliths in some species are retained in the muscular gizzard and used to grind food in animals lacking suitable grinding teeth. In other species the rocks are ingested and pass through the ...
"A New Plesiosaur from the Niobrara Cretaceous of Kansas". Transactions of the Annual Meetings of the Kansas Academy of Science. 12: 174– 178. doi:10.2307/3623798. JSTOR 3623798. Williston S. W. (1891). "An Interesting Food Habit of the Plesiosaurs". Transactions of the Annual Meetings of the Kansas Academy of Science. 13: 121– 122.
The genus name comes from the Māori words kai meaning "food" and whekea meaning "squid", together meaning "squid-eater". The specific epithet refers to Kātiki Beach, to the north of the find location. [1] Kaiwhekea was approximately 6.5–7 metres (21–23 ft) long. It lived around 70-69 million years ago.