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Some species, with the "plesiosauromorph" build, had (sometimes extremely) long necks and small heads; these were relatively slow and caught small sea animals. Other species, some of them reaching a length of up to seventeen metres, had the "pliosauromorph" build with a short neck and a large head; these were apex predators , fast hunters of ...
Plesiosauroidea (/ ˈ p l iː s i ə s ɔːr /; Greek: πλησιος plēsios 'near, close to' and σαυρος sauros 'lizard') is an extinct clade of carnivorous marine reptiles.They have the snake-like longest neck to body ratio of any reptile.
Plesiosaurus gave live birth to live young in the water like most sea snakes. The young might have lived in estuaries before moving out into the open ocean. It has been postulated that the long neck of Plesiosaurus would have been a hindrance when trying to speed up, any bend in the neck creating turbulences. [22]
With a neck that is 15 metres long, Mamenchisaurus sinocanadorum might be a record-holder, researchers said. Scientists identify dinosaur with the longest neck ever seen in an animal Skip to main ...
Paleontologists re-evaluated the dinosaur’s ridiculously long neck by comparing it to closely related species. This dinosaur had the biggest neck on record — as long as a school bus, research ...
Elasmosauridae is an extinct family of plesiosaurs, often called elasmosaurs.They had the longest necks of the plesiosaurs and existed from the Hauterivian to the Maastrichtian stages of the Cretaceous, and represented one of the two groups of plesiosaurs present at the end of the Cretaceous alongside Polycotylidae.
Measuring 10.3 meters (34 ft) in length, Elasmosaurus would have had a streamlined body with paddle-like limbs, a short tail, a small head, and an extremely long neck. The neck alone was around 7.1 meters (23 ft) long.
The neck of Tanystropheus was composed of 13 elongated neck vertebrae, [14] whereas the neck of Dinocephalosaurus was composed of at least 27 neck vertebrae that were not as elongated. Among the 27 vertebrae of Dinocephalosaurus , the longest was the nineteenth, which measured approximately 91 mm (3.6 in) long.