Welcome to Prehistoric World
Discover the fascinating creatures that once roamed our planet
Featured Creatures
Featured Creatures
Giganotosaurus carolinii
Cretaceous
The Giganotosaurus, a colossal theropod that roamed the southern continents of what is now South America during the late Cretaceous ...
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Irish elk
Paleogene
The Irish Elk was one of the largest species of deer to have ever lived, roaming across Europe, Asia, and ...
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Spinosaurus maroccanus
Cretaceous
Not much is known about this type of Spinosaurus or whether if it actually existed
Learn MoreLatest Discovery
Updated: February 14, 2025 at 6:47 PM
Dimetrodon limbatus
Period: Permian
Dimetrodon, an extinct genus of non-mammalian synapsids belonging to the family Sphenacodontidae, lived during the Cisuralian age of the Early ...
Did You Know?
Ordovician-Silurian extinction
The Ordovician-Silurian extinction, around 445 million years ago, was caused by a rapid ice age and fluctuating sea levels, eliminating nearly 85% of marine species.
Not All Dinosaurs Were Giants
While many famous dinosaurs were enormous, the smallest known dinosaur was the Compsognathus, only about the size of a chicken!
First Land Animals
Tiktaalik, living 375 million years ago, was one of the first vertebrates to venture onto land, with primitive lungs and leg-like fins.
Earth's Oxygen Revolution
About 2.4 billion years ago, the "Great Oxidation Event" dramatically increased Earth's oxygen levels, making complex life possible.
The First Flower
The first flowering plants appeared around 130 million years ago, during the Cretaceous period, revolutionizing plant evolution.
The Great Dying
The Permian-Triassic extinction event, known as "The Great Dying," wiped out about 95% of marine species and 70% of land species.
Walking Whales
Early whales like Ambulocetus had legs and could walk on land, showing the remarkable transition of mammals back to marine life.
Birds Are Living Dinosaurs
Modern birds are actually living theropod dinosaurs, having evolved from a group of dinosaurs called maniraptors.
The K-Pg extinction
The K-Pg extinction, caused by an asteroid impact 66 million years ago, wiped out 75% of species, including non-avian dinosaurs, due to climate shifts, wildfires, and tsunamis.
Snowball Earth
Around 700 million years ago, Earth was almost completely covered in ice during the "Snowball Earth" period, with temperatures as low as -50°C.