Articles for category: Prehistoric Discoveries

Tullimonstrum

The Fossil That Took 100 Years to Properly Identify

In the dusty corridors of paleontological history lies a remarkable story of scientific perseverance and evolving understanding. The Tully Monster (Tullimonstrum gregarium), discovered in the coal mining pits of Illinois in the 1950s, became one of paleontology’s most perplexing mysteries, confounding scientists for over a century. This bizarre creature’s true identity remained elusive through decades ...

selective focus photography of bird

How Crocodiles, Birds, and Turtles Survived the Asteroid that Ended the Dinosaurs

When a massive asteroid struck Earth approximately 66 million years ago, it triggered catastrophic global changes that wiped out approximately 75% of all species, including the non-avian dinosaurs that had dominated terrestrial ecosystems for over 160 million years. Yet amid this devastation, certain animal groups managed to endure and eventually thrive in the post-impact world. ...

Kronosaurus hunting on the plesiosaur Woolungasaurus

The Sea Monsters of the Mesozoic: Ichthyosaurs, Pliosaurs & Mosasaurs

The depths of Earth’s primordial oceans once teemed with marine predators so formidable that they would eclipse many of today’s apex ocean hunters. During the Mesozoic Era (252-66 million years ago), while dinosaurs dominated the land, the seas belonged to a spectacular array of reptilian creatures that had returned to aquatic lifestyles. Ichthyosaurs with their ...

Bugs Bigger Than Birds

Bugs Bigger Than Birds The Insects of the Carboniferous and Beyond

When we imagine prehistoric giants, dinosaurs typically spring to mind, but millions of years before these reptiles ruled the Earth, another group of creatures grew to astonishing proportions. During the Carboniferous period, approximately 359 to 299 million years ago, insects reached sizes that seem almost impossible by today’s standards. Some species grew larger than many ...

10 Prehistoric Birds That Were Real-Life Monsters

10 Prehistoric Birds That Were Real-Life Monsters

Picture this scene from millions of years ago. A shadow sweeps across an ancient grassland, but it’s not from an airplane overhead. It’s from a bird. A bird so massive that its wingspan stretches further than most school buses are long. Somewhere else, thunderous footsteps echo through prehistoric forests as flightless giants, taller than basketball ...

The Inland Seas That Split North America in Two

The Inland Seas That Split North America in Two

The heart of North America once harbored vast prehistoric seas that divided the continent into separate landmasses. These ancient inland waterways, which existed during various geological periods, fundamentally shaped the continent we know today. From the Western Interior Seaway of the Cretaceous period to earlier Paleozoic seas, these massive bodies of water created unique ecosystems, ...

Close-up of a large, brown Chinese giant salamander in a clear water tank. Its textured skin and small eyes are visible, conveying a serene presence.

Giant Amphibians and Their Vanishing World

Deep in the world’s remaining old-growth forests, hidden in crystal-clear mountain streams, and lurking beneath the murky waters of ancient lakes, Earth’s giant amphibians have thrived for millions of years. These remarkable creatures—some reaching lengths of over five feet—represent living connections to prehistoric times when amphibians ruled much of the planet. Today, however, these magnificent ...

Studies suggest dinosaurs grew faster than reptiles but slightly slower than similar-sized mammals.

Giant Crocodiles That Hunted Dinosaurs

In the shadowy waters of prehistoric rivers and coastal regions, enormous crocodilian predators lurked, some growing large enough to prey upon dinosaurs that ventured too close to the water’s edge. These ancient reptiles were not the crocodiles we recognize today but were their distant relatives, often larger and more terrifying. Some of these massive predators ...

A large shark swims gracefully over a sunlit, seaweed-covered ocean floor. The clear blue water adds a serene yet commanding presence to the scene.

Life in the Shadows: Deep Ocean Creatures During the Age of Dinosaurs

While dinosaurs dominated the land during the Mesozoic Era (252-66 million years ago), an equally fascinating but less celebrated evolutionary story was unfolding in the depths of Earth’s oceans. The marine ecosystems of this period hosted an extraordinary array of creatures that thrived in darkness, adapting to changing ocean conditions and evolving remarkable survival strategies. ...