Mosasaurus
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Mosasaurus
  • Name Meaning: “Meuse River lizard”
  • Habitat: Seas of Europe and North America
  • Length: 60 ftLength: 18m
  • Weight: 5 tons5,000 kg
  • Stance: Aquatic
  • Diet: Carnivore
  • Age: Late Cretaceous, 70-66 million years ago

Mosasaurus once ruled the Cretaceous seas. An immense seagoing lizard—and not an actual dinosaur—Mosasaurus can use its fearsome array of teeth to catch fish, birds, and other marine reptiles—even great white sharks. In fact, Mosasaurus has a second set of teeth in its upper palate that ensures any prey sliding down its throat will not be able to escape.

Fossil imagery courtesy of Natural History Museum of Los Angeles County.

Mosasaurus
Mosasaurus Attraction

Did you know?


The Komodo dragon and monitor lizards are among the closest living relatives of Mosasaurus.


Size Chart

Tyrannosaurus rex 40′ long × 16′ tall12m long × 5m tall Apatosaurus 75′ long × 15′ tall23m long × 5m tall Suchomimus 32′ long × 14′ tall10m long × 4m tall Triceratops 30′ long × 10′ tall9m long × 3m tall Edmontosaurus 42′ long × 10′ tall13m long × 3m tall Gallimimus 26′ long × 9′ tall8m long × 3m tall Stegosaurus 30′ long × 9′ tall9m long × 3m tall Parasaurolophus 40′ long × 9′ tall12m long × 3m tall Baryonyx 33′ long × 8′ tall10m long × 3m tall Metriacanthosaurus 24′ long × 6′ tall7m long × 2m tall Ankylosaurus 25′ long × 6′ tall8m long × 2m tall Velociraptor 13′ long × 6′ tall4m long × 2m tall Pachycephalosaurus 16′ long × 6′ tall5m long × 2m tall Microceratus 3′ long × 1′ tall1m long × 0.3m tall Mosasaurus 60′ long 18m long Pteranodon 25′ long8m long Dimorphodon 5′ long1.5m long Tyrannosaurus rex 40′ long × 16′ tall12m long × 5m tall Apatosaurus 75′ long × 15′ tall23m long × 5m tall Suchomimus 32′ long × 14′ tall10m long × 4m tall Triceratops 30′ long × 10′ tall9m long × 3m tall Edmontosaurus 42′ long × 10′ tall13m long × 3m tall Gallimimus 26′ long × 9′ tall8m long × 3m tall Stegosaurus 30′ long × 9′ tall9m long × 3m tall Parasaurolophus 40′ long × 9′ tall12m long × 3m tall Baryonyx 33′ long × 8′ tall10m long × 3m tall Metriacanthosaurus 24′ long × 6′ tall7m long × 2m tall Ankylosaurus 25′ long × 6′ tall8m long × 2m tall Velociraptor 13′ long × 6′ tall4m long × 2m tall Pachycephalosaurus 16′ long × 6′ tall5m long × 2m tall Microceratus 3′ long × 1′ tall1m long × 0.3m tall Mosasaurus 60′ long 18m long Pteranodon 25′ long8m long Dimorphodon 5′ long1.5m long
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