Articles for category: Dinosaur Profiles

Horned dinosaur ceratopsian, Triceratops (Cretaceous, Hell Creek Formation, Corson County, South Dakota)

Was the Triceratops Just a Young Torosaurus? The Ongoing Debate

In the realm of paleontology, few controversies have sparked as much scientific debate as the relationship between Triceratops and Torosaurus. For decades, these iconic horned dinosaurs were classified as distinct genera that lived during the Late Cretaceous period. However, in 2010, a contentious hypothesis emerged suggesting that Torosaurus specimens might actually represent mature Triceratops individuals, ...

Illustration of an dinosaur with a long tail and snout. It has a mottled green and brown pattern on its skin, conveying a realistic prehistoric appearance.

Thescelosaurus: The “Wondrous Lizard” That Survived Until the End in Montana

Thescelosaurus, whose name aptly translates to “wondrous lizard,” stands as one of the final dinosaur species to walk the Earth before the catastrophic extinction event that marked the end of the Cretaceous period. This remarkable herbivore, often overshadowed by its more famous contemporaries like Tyrannosaurus rex and Triceratops, has a fascinating story that deserves telling. ...

Microraptor's aerodynamic feathers hint at gliding or even early flight, soaring through prehistoric skies.

Microraptor: The Four-Winged Glider Smaller Than a Housecat

Imagine a creature soaring through prehistoric forests, smaller than a modern housecat, with gleaming feathers on not just two but four limbs. This remarkable animal was Microraptor, one of the most fascinating dinosaurs ever discovered and a crucial piece in our understanding of avian evolution. Dating back approximately 120 million years to the Early Cretaceous ...

Illustration of two medium-sized sauropod dinosaurs with long necks walking in a sandy landscape; a large carnivorous dinosaur watches them from behind.

Camarasaurus: The Versatile Sauropod Found Across the Western USA

Among the majestic giants that roamed North America during the Late Jurassic period, Camarasaurus stands out as one of the most commonly discovered and well-studied sauropod dinosaurs. With its distinctive arched skull and modest size (compared to other sauropods), this herbivorous behemoth left a significant fossil record throughout the western United States. Appearing approximately 155-145 ...

A reconstruction of Parvicursor sitting on its nest.

From Compsognathus to Microraptor: The Little Dinosaurs That Changed Big Theories

The smallest members of the dinosaur family tree have often yielded the biggest scientific breakthroughs. From the chicken-sized Compsognathus to the gliding Microraptor, these diminutive dinosaurs have repeatedly forced paleontologists to reconsider established theories about dinosaur evolution, behavior, and the origins of birds. While their larger cousins like Tyrannosaurus rex and Brachiosaurus tend to capture ...

A detailed illustration of a bipedal dinosaur with a long tail and clawed limbs. It has a speckled pattern in gray and yellow on its scaly skin.

Herrerasaurus and the Other Lean Hunters of the Triassic Forests

Long before Tyrannosaurus rex and Velociraptor dominated the prehistoric landscape, a different cast of predators roamed the early dinosaur world. The Triassic period (252-201 million years ago) marked the dawn of dinosaur evolution, where early experiments in dinosaur design produced some remarkable predators that would set the stage for the more famous theropods of later ...

Oculudentavis

Meet the Smallest Dinosaur Ever Discovered: The Hummingbird-Sized Oculudentavis

In the world of paleontology, discoveries constantly reshape our understanding of prehistoric life. Among these findings, few have been as fascinating as Oculudentavis khaungraae, a tiny creature that stunned scientists when it was first identified in 2020. Preserved in amber from Myanmar dating back approximately 99 million years, this diminutive animal was initially believed to ...

Illustration of a gray and blue dinosaur with a slender body, long tail, and three-toed front limbs. It has a textured pattern and alert stance.

Eoraptor: The Small, Swift Carnivore That May Have Started It All

In the vast timeline of Earth’s history, few creatures hold as pivotal a position as Eoraptor. This diminutive dinosaur, whose name means “dawn thief,” lived approximately 231 million years ago during the Late Triassic period, making it one of the earliest known dinosaurs. Discovered in Argentina’s Ischigualasto Formation in 1991, Eoraptor has forced paleontologists to ...

Compsognathus

Tiny but Deadly: The Smallest Predatory Dinosaurs in Prehistory

When we think of dinosaurs, colossal beasts like Tyrannosaurus rex and Brachiosaurus often come to mind. However, the prehistoric world was also home to remarkably small predatory dinosaurs that wielded outsized influence in their ecosystems. These diminutive hunters proved that lethal efficiency didn’t always require massive size. From the chicken-sized Compsognathus to the cat-sized Microraptor, ...

Two large dinosaurs are near a water body under a cloudy sky. One drinks from the river, while the other stands nearby. The scene is serene and prehistoric.

The Duck-Billed Dinosaur That Could Sing Through Its Skull

The duck-billed dinosaurs, or hadrosaurs, were among the most successful dinosaurs of the Late Cretaceous period. While their duck-like bills have captured our imagination for generations, recent scientific discoveries about their cranial structures have revealed something even more fascinating: some hadrosaurs may have been capable of producing complex sounds through elaborate hollow chambers in their ...