How big can a Plesiosaurus get?
1,100 lbsPlesiosaurus / Mass (Adult)
What is the difference between a plesiosaur and a Plesiosaurus?
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.” The nostrils were located far back on the head near the eyes.
Is a Plesiosaurus a dinosaur?
Marine reptiles, such as ichthyosaurs, plesiosaurs and mosasaurs are not dinosaurs. Nor is Dimetrodon or other reptiles in the same group (previously called ‘mammal-like reptiles’ and now called synapsids). None of these other extinct groups shared the characteristic upright stance of dinosaurs.
What was the lifespan of a plesiosaur?
The order Plesiosauria was comprised of two superfamilies, Plesiosauroidea and Pliosauroidea….Plesiosaur.
| Plesiosaurs | |
|---|---|
| Lifespan | Unknown |
| Average Size | 1.8-20 m |
| Average weight | 75 kg-30 t |
| Diet | Carnivorous |
What did a Plesiosaurus eat?
All plesiosaurs – so far as we know – were predators, the shapes of their teeth and jaws indicating that they preyed variously on swimming and benthic invertebrates, on fish, and also on other aquatic reptiles.
What is the difference between Elasmosaurus and Plesiosaurus?
Plesiosaurs were distinguished by their long, narrow necks, small heads, and streamlined torsos. Elasmosaurus had the longest neck of any plesiosaur yet identified, about half the length of its entire body and supported by a whopping 71 vertebrae (no other plesiosaur had more than 60 vertebrae).
What happened to Plesiosaurus?
All plesiosaurs became extinct as a result of the K-T event at the end of the Cretaceous period, approximately 66 million years ago.
What did Plesiosaurus look like?
The typical plesiosaur had a broad, flat, body and a short tail. Plesiosaurs retained their ancestral two pairs of limbs, which had evolved into large flippers. Plesiosaurs were related to the earlier Nothosauridae, that had a more crocodile-like body.
Can plesiosaur walk land?
“Scientists have long known that the bodies of plesiosaurs were not well suited to climbing onto land and laying eggs in a nest [like dinosaurs].
What was the biggest aquatic dinosaur?
Sea Animal: New research has revealed that the ichthyosaurus species that lived in the dinosaur era was the most gigantic sea creature that ever lived on Earth. New research has revealed that the ichthyosaurus species that lived in the dinosaur era was the most gigantic sea creature that ever lived.