What Were the Largest Horned Dinosaurs?

Dinosaurs have always fascinated us with their diverse and unique features, but one group that truly stands out are the ceratopsians, more commonly known as horned dinosaurs. These magnificent creatures had horns on their heads, making them some of the most recognizable dinosaurs. In this article, we will delve into the world of these horned giants, discussing the largest ceratopsian, the smallest ceratopsian, and everything in between.

The Ceratopsian Family

The Ceratops family is best known for its horned members, such as the famous three-horned dinosaur, Triceratops. However, there were many other types of ceratopsians, each with its own unique set of horns and frills. Some had a single horn on their nose, others had two or three horns on their heads, and some even had elaborate frills adorned with multiple small horns.

The Triceratops

The Triceratops, whose name means “three-horned face”, is arguably the most famous horned dinosaur. This dinosaur with three horns – two large ones above the eyes and a smaller one on the nose – is often what comes to mind when we think of a “dinosaur with horns”. The Triceratops was a massive creature, reaching up to 9 meters in length and weighing as much as 12 tons.

Triceratops Cousins

There were several dinosaurs that looked like a Triceratops, including the Pentaceratops and the Styracosaurus. The Pentaceratops, meaning “five-horned face”, had an additional pair of horns on its frill. The Styracosaurus, on the other hand, had a single large horn on its nose and multiple smaller horns on its frill.

The One-Horned Dinosaurs

While many ceratopsians had multiple horns, there were also dinosaurs with one horn. The Monoclonius, for instance, was a dinosaur with a single large horn on its nose. Similarly, the Centrosaurus had a single large horn on its forehead and smaller horns over its eyes.

The Dinosaur with 15 Horns

When it comes to the number of horns, the Kosmoceratops takes the crown. This dinosaur has an astounding 15 horns on its head, making it the dinosaur with the most horns. Its name fittingly means “ornate horned face”.

The Largest Ceratopsian

The title of the largest ceratopsian goes to the Titanoceratops. This dinosaur, similar in appearance to the Triceratops but significantly larger, could reach lengths of up to 9 meters and weigh as much as 14 tons. The Eotriceratops, another giant among horned dinosaurs, was also comparable in size to the Titanoceratops.

The Smallest Ceratopsian

On the other end of the spectrum, the smallest ceratopsian was the Gryphoceratops. This little dinosaur was only about 1 meter long and weighed around 30 kilograms. Despite its small size, it still sported a pair of horns on its head.

Horned Carnivorous Dinosaurs?

While all known ceratopsians were herbivores, some carnivorous dinosaurs also had horn-like structures. The Carnotaurus, for instance, had two small horns above its eyes. However, these weren’t true horns like those of the ceratopsians but rather bony protrusions.


The world of horned dinosaurs was incredibly diverse, from the three-horned Triceratops and the one-horned Monoclonius to the 15-horned Kosmoceratops. These fascinating creatures continue to captivate us with their unique appearances and impressive sizes. Whether you’re intrigued by the largest ceratopsian or the smallest, there’s no denying the allure of these horned giants of the past.

Leave a Comment