Mosasaurs were a family of extinct carnivorous marine lizards living in the late Cretaceous period, roughly 70 to 66 million years ago. The largest, Mosasaurus, measured up to 18 meters.
Mosasaurs are an extinct group of large marine reptiles. Their first fossil remains were discovered in a limestone quarry at Maastricht on the Meuse in 1764.
The marine reptiles known as mosasaurs were sleek, vicious, and fast, which made them the terrors of the late Cretaceous seas. Here's everything you need to know about these dangerous aquatic predators.
If you want to find sea monsters, there's hardly a better place to look than western Kansas. Not that you're going to see any live ones slithering around. They've been dead for more than 66 million years.
Identifying the animal that left bite marks in the fossilized, coiled shells of sea creatures called ammonoids kept paleontologists busy for decades. Laelaps blogger Brian Switek explains how two very different predatory contenders were narrowed to one.
Mosasaurs are very large extinct marine reptiles with some species reaching lengths of over 50 feet and are considered to be some of the fearsome predators to ever inhabit our oceans.
Mosasaurs are an extinct group of large marine reptiles. Their first fossil remains were discovered in a limestone quarry at Maastricht on the Meuse in 1764.
The marine reptiles known as mosasaurs were sleek, vicious, and fast, which made them the terrors of the late Cretaceous seas. Here's everything you need to know about these dangerous aquatic predators.
If you want to find sea monsters, there's hardly a better place to look than western Kansas. Not that you're going to see any live ones slithering around. They've been dead for more than 66 million years.
Identifying the animal that left bite marks in the fossilized, coiled shells of sea creatures called ammonoids kept paleontologists busy for decades. Laelaps blogger Brian Switek explains how two very different predatory contenders were narrowed to one.
Mosasaurs are very large extinct marine reptiles with some species reaching lengths of over 50 feet and are considered to be some of the fearsome predators to ever inhabit our oceans.
