Mosasaurus
Mosasaurus was a giant marine reptile that ruled the oceans at the end of the Age of Dinosaurs. It was not a dinosaur but a close relative of modern lizards and snakes. With its powerful jaws and long tail, it was a top predator in the sea.1
Cando viviu?
Como era de grande?
Canto medía de longo?
Canto pesaba?
tan longo coma 4 coches aparcados en fila🍌tan longo coma 94 plátanos postos un tras outro
tan pesado coma 1,5 elefantes🍉tan pesado coma 2000 sandías🎒tan pesado coma 12 clases enteiras de nenos🐻❄️tan pesado coma 22 osos polares🏊podería nadar o longo dunha piscina grande (50 m) en 6,9 segundosComo era de grande Mosasaurus comparado CONTIGO?
Só son contas no teu navegador. Non se garda nin se envía nada.
Que velocidade alcanzaba?
Datos curiosos
Mosasaurus was first discovered in 1766 in a limestone quarry near Maastricht, Netherlands, long before the word 'dinosaur' was even invented.1
The first Mosasaurus skull was seized by the French army in 1795 and is still on display in Paris today.1
Mosasaurus had a special joint in its lower jaw that allowed it to open its mouth extra wide, so it could swallow very large prey.1
Unlike most lizards, Mosasaurus gave birth to live young in the open ocean and did not need to come ashore to lay eggs.1
Some Mosasaurus species were warm-blooded, which helped them live in both cold polar waters and warm tropical seas.1
Mosasaurus teeth were curved and sharp, and they sat in sockets like ours, which helped it bite hard without hurting itself.1
Mosasaurus lived during the Late Cretaceous Period, from about 94 million to 66 million years ago, when a huge sea called the Western Interior Seaway covered parts of North America.1

As preguntas máis frecuentes sobre Mosasaurus
?Was Mosasaurus a dinosaur?
No, Mosasaurus was not a dinosaur. It was a giant marine reptile and a close relative of modern lizards and snakes.12
?How big was Mosasaurus?
The largest species, Mosasaurus hoffmanni, may have reached 17 to 18 metres (56 to 59 ft), though many scientists think 11 to 12 metres (36 to 39 ft) is more likely. Other species were about 8 to 10 metres (26 to 33 ft) long.12
?What did Mosasaurus eat?
Mosasaurus was a carnivore that ate fish, sharks, squid, birds, sea turtles, and even other mosasaurs. It could swallow very large prey thanks to a special hinge in its jaw.132
?When did Mosasaurus live?
Mosasaurus lived during the Late Cretaceous Period, from about 82 to 66 million years ago, when it went extinct along with the dinosaurs.2
?Could Mosasaurus swim fast?
Probably up to about 26 km/h (16 mph) in a short burst, about as fast as a grown-up riding a bike. This is an estimate. Mosasaurus swam by swishing its tail, but it probably could not swim very fast for long.34
?Did Mosasaurus have any predators?
Adult Mosasaurus had no natural predators, but young ones were hunted by sharks and giant fish. Mosasaurs also fought and sometimes ate each other.32
?Where have Mosasaurus fossils been found?
Mosasaurus fossils have been found in North and South America, Europe, Africa, Western Asia, and Antarctica, showing it lived in oceans all over the world.2
?Was Mosasaurus bigger than T. rex?
Yes, Mosasaurus was longer than T. rex. The largest Mosasaurus species could reach 17 to 18 metres (56 to 59 ft) long, while T. rex was about 12 metres (40 ft) long.12
?Did Mosasaurus lay eggs?
No, Mosasaurus gave birth to live young in the open ocean. Scientists found a fossil of a pregnant mosasaur with five babies inside.13
?How did Mosasaurus become extinct?
Mosasaurus went extinct about 66 million years ago, at the same time as the dinosaurs, likely because of the asteroid impact that caused a mass extinction.2
Cazamitos
Mito: Mosasaurus is a dinosaur.
Verdade: Mosasaurus is not a dinosaur. It is a marine reptile and a member of the squamate group, which includes modern lizards and snakes.1
Para expertos en dinos
- Nome científico
- Mosasaurus
- Bautizado por
- Parkinson 18225
- Grupo
- Mosasauros
- Familia / clado
- Mosasauridae5
- Clasificación
- Mosasauroidea5
- Idade das rochas
- de 100 a 62 millóns de anos (Cenomanian / Danian)5
- Formacións rochosas
- Navesink, Severn, Pierre Shale5
- Países
- EUA, Siria, Reino Unido, Marrocos, Nova Zelandia, Polonia5
- Rexistros fósiles
- 130 na Paleobiology Database5
- Descubrimento
- The first Mosasaurus fossils were found in 1766 near Maastricht, Netherlands. The animal was named Mosasaurus in 1822 by James Parkinson, after the Meuse River. The famous French naturalist Georges Cuvier later confirmed it was a giant lizard.51
- Aínda en debate
- Scientists are still debating the exact sizes of different Mosasaurus species, because only a few complete skeletons have been found.1
De onde veñen os datos
- What is a mosasaur? Facts about Mosasaurus and its relatives | Natural History Museum (nhm.ac.uk)
- Mosasaurus (Wikipedia) (Wikipedia)
- Mosasaur: Apex Predator of the Western Interior Seaway (U.S. National Park Service) (nps.gov)
- Russian Geological Research Institute (karpinskyinstitute.ru)
- Mosasaurus in The Paleobiology Database (CC BY 4.0): idade, lugares, formacións rochosas, clasificación.
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