Mosasaurus
Mosasaurus hoffmannii · Reptile, Vertebrate, Cold-blooded, Wild (Extinct)
Animal Family
Mosasauridae, order Squamata, class Reptilia
Animal Category
Marine Animal (Prehistoric)
Breed / Variety
Mosasaurus hoffmannii
Conservation Status
Extinct (EX), having died out during the Cretaceous-Paleogene extinction event.
About This Creature
Massive marine reptile reaching lengths of up to 15-18 meters, featuring a streamlined lizard-like body, four flippers, a long powerful tail with a fin, and a large tooth-filled jaw.
Physical Characteristics
Elongated skull, conical sharp teeth including pterygoid teeth on the roof of the mouth, powerful jaws hinged to swallow large prey whole, scaly skin, and paddle-like limbs.
Behavior & Temperament
Apex marine predator, solitary hunter, utilizing ambush tactics in pelagic environments.
Habitat & Diet
Origin Region
Global oceans, particularly Western Europe and North America during the Late Cretaceous
Habitat
Ocean/Marine, Aquatic
Diet & Nutrition
Carnivorous, feeding on fish, sea turtles, ammonites, plesiosaurs, and other marine reptiles.
Lifespan & Health
Extinct for approximately 66 million years; lifespan unknown but estimated to be several decades based on large reptile physiology.
Special Characteristics
Double-hinged jaw similar to modern snakes allowing the consumption of oversized prey, and an exceptionally strong bite force.
Ecological Information
Top apex predator of Late Cretaceous marine ecosystems, regulating populations of large marine animals before its extinction.