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Plesiosaurs, a group of marine reptiles that lived during the Mesozoic Era, went extinct approximately 66 million years ago at the end of the Cretaceous period. This mass extinction event is widely believed to have been caused by a combination of factors, including a catastrophic asteroid impact and extensive volcanic activity, which led to dramatic changes in the Earth's climate and ecosystems. As a result, many species, including plesiosaurs, could not survive the harsh environmental shifts.
What else can I help you with?
What is a plesiosaur?
A plesiosuar was a type of reptile that died like about a million of years ago and was extinct.
What did the Plesiosaur eat?
The plesiosaur ate mostly fish and plants
What is the Loch Ness Monster's closest relative?
The Plesiosaur. Some people believe that the Loch Ness is a Plesiosaur.
What type of a dinosaur is Elasmosaurus?
It was not a dinosaur, but a plesiosaur and the longest plesiosaur. It could grow upto 15 m long.
A dinosaur that lived in the sea?
The plesiosaur or the mosasaurid.
What plesiosaur eat?
what other dinosaurs eat
What eats a plesiosaur?
nothing they are too big
What kind of food did a plesiosaur eat?
they ate fish.
What is the name of a swimming dinosaur with a long neck?
Plesiosaur
What type of animal is a plesiosaur?
a pleasant one xx
Could an archaeopteryx or plesiosaur fly?
An Archaeopteryx may have been able to fly, but a plesiosaur is a swimming reptile, and it doesn't fly. Archaeopteryx could not fly is was too heavey and its wings were way too short to support flight and as for the plesiosaur as the previous person mentioned it was a swimming reptile
Who found the fossils of the plesiosaur and pterodactyl dinosaurs?
The first Pterodactylus fossil discovered was found in the 1700's, and though I don't know who found the fossil, it was first described by Cosimo Alessandro Collini. Plesiosaur vertebrae were discovered as early as the 1600's, but they were believed to belong to fish. In 1719, William Stukely was told by Robert Darwin, the great-grandfather of Charles Darwin, about a partial plesiosaur skeleton preserved in a slab of rock. Stukely then described this plesiosaur.
