Tylosaurus
Tylosaurus was a giant marine lizard that swam in the oceans during the Late Cretaceous. It was not a dinosaur, but a mosasaur, a fierce predator with a long snout and paddle-like flippers. It could grow over 13 meters long, as big as a school bus!1
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Tylosaurus had a long, bony snout that stuck out like a prow, which is why one species is named proriger, meaning 'prow-bearing'.1
Fossils show Tylosaurus fought each other, with bite marks on skulls and other bones.1
One Tylosaurus skeleton had the remains of a 2-meter-long mosasaur, a diving bird, a fish, and a shark all in its stomach at once.1
Tylosaurus had an endothermic (warm-blooded) metabolism, unlike most modern lizards and snakes.1
It gave birth to live young, not eggs, based on its close relatives.3
Tylosaurus lived from about 93.9 to 66 million years ago, during the Late Cretaceous.3

Naamne ɓurɗe naamneede fii Tylosaurus
?Was Tylosaurus a dinosaur?
No, Tylosaurus was not a dinosaur. It was a mosasaur, a giant marine lizard that lived in the oceans during the Late Cretaceous.1
?How big was Tylosaurus?
The largest species, Tylosaurus rex, could grow over 13 metres (43 feet) long, about the length of a school bus.12
?What did Tylosaurus eat?
Tylosaurus was an apex predator that ate fish, sea turtles, birds, plesiosaurs, other mosasaurs, sharks, and even giant squid and ammonites.1
?Did Tylosaurus have any predators?
No, Tylosaurus was an apex predator, meaning it had no natural predators. It was one of the largest marine carnivores of its time.1
?Could Tylosaurus swim?
Yes, Tylosaurus was a fully aquatic marine reptile. It had a streamlined body, flippers, and a tail fin for swimming, similar to modern whales.1
?When did Tylosaurus go extinct?
Tylosaurus lived from about 92 to 66 million years ago, going extinct at the end of the Cretaceous period.1
?Did Tylosaurus lay eggs?
No, Tylosaurus likely gave birth to live young, not eggs. This is based on evidence from its close relatives, which have been found with babies inside them.1
?Why did Tylosaurus have a long snout?
The long, bony snout (rostrum) of Tylosaurus may have been used as a ramming weapon or to sense prey. It also gives the animal its name, which means 'knob lizard'.1

Naamnu Rex fii Tylosaurus
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Feññinoowo goonga
Fenaande: Tylosaurus was a dinosaur.
Goonga: Tylosaurus was a mosasaur, a marine reptile more closely related to modern monitor lizards and snakes than to dinosaurs.1
Ngam annduɓe dino
- Innde ganndal
- Tylosaurus
- Inndoowo
- Marsh 18723
- Fedde
- Mosasaurs
- Fedde / clade
- Mosasauridae3
- Fedde
- Mosasauroidea3
- Duuɓi kaaƴe
- 94 haa 66 miliyon duuɓi (Turonian / Maastrichtian)3
- Cuuɗi kaaƴe
- Niobrara, Pierre Shale, Tar Heel3
- Leyɗe
- USA, Sweden, Canada, Angola, Belgium, Germany3
- Fosilji tawaaɗi
- 67 nder Paleobiology Database3
- Tawgol
- The first species, T. proriger, was described in 1869 by Edward Drinker Cope, and the genus Tylosaurus was named in 1872 by Othniel Charles Marsh. The type specimen was found in Kansas, USA, in the late 1860s.1
- Haa jooni ɓe ɗon yeddondira
- Scientists still debate how many species of Tylosaurus existed and how they are related to each other.1
To haalaaji ummii
- Tylosaurus (en.wikipedia.org)
- Giant Mosasaur Species from Texas Named T. rex | AMNH (amnh.org)
- Tylosaurus in The Paleobiology Database (CC BY 4.0): duuɓi, nokkuuje, cuuɗi kaaƴe, pecce.
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