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Well, they died out 65.5 million years ago (give or take a few million years). There was no recorded human history, so there wasn't anyone to record a "year". I guess you could call the year 65,000,000 BC.
Wiki User
∙ 13y ago
Wiki User
∙ 15y agoActually, no one knows when the plesiosaur became extinct. The Lochness Monster is maybe a plesiosaur.
Wiki User
∙ 9y agoDespite the name, the Tylosaurus was not a dinosaur. It was a carnivorous animal that was about 45 feet long and went extinct at the end of the Cretaceous period.
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When tyrannosaurus rex lived?
Tylosaurus lived from 88 to 80.5 million years ago. This spans from the Coniacian stage to the Campanian stage of the Late Cretaceous.
When was Tylosaurus created?
Tylosaurus was created in 1872.
Who were the ceratosaurus' enemies?
first of fall plesiosaurs is an order of extinct marine reptiles and their enemie was the tylosaurus
What is the classification of the tylosaurus?
Tylosaurus was not a dinosaur. It was a type of mosasaur, which were large, carnivorous marine reptiles.
When will lions and tigers go extinct?
Most scientists believes that in the year 2,050 AD, lions and tigers will probably go extinct.
What year did SIX flags go bankrupt?
the year that pickles became extinct
When did the tylosaurus live?
Tylosaurus was a type of mosasaur (mosasaurs were large, carnivorous, marine lizards). Tylosaurus existed about 83 million years ago. That was during the late Cretaceous time period of the Mesozoic era.
Did the tylosaurus lived?
Tylosaurus was a type of mosasaur (mosasaurs were large, carnivorous, marine lizards). Tylosaurus existed about 83 million years ago. That was during the late Cretaceous time period of the Mesozoic era.
What does a tylosaurus eat?
The tylosaurus mostly ate fish but also snacked on sharks, flightless diving birds and even plesiosaurs.
What is a sentence with the word extinct?
Why did the dinosaurs go extinct? Humans will never go extinct!
How did the neanderthal go extinct Was there more than 1 reason it could have went extinct?
There are several theories on why Neanderthals went extinct around 40,000 years ago. Some proposed reasons include competition with modern humans, climate change, lack of adaptability, and possible interbreeding with modern humans. It is likely that a combination of these factors contributed to their extinction.
How do you spell tylasaurus?
The word is spelled tylosaurus. You were close!
