Ankylosaurus

Family

Ornithischians

Era

Late Cretaceous, about 70-65 million years ago

Where he lived?

Western USA (Montana) and Canada (Alberta), and near Sucre (Bolivia).

Weight

7.000Kg

Height

1,7m

Length

The Ankylosaurus, whose name means “armored lizard,” is one of the most recognized dinosaurs from the late Cretaceous period, approximately 68 to 66 million years ago. This quadrupedal herbivore is famous for its robust armor and distinctive tail club, features that provided formidable defense against the predators of its time.

Physical Characteristics

The Ankylosaurus was a large dinosaur, with estimates suggesting a length of between 6 and 8 meters and a weight ranging from 4.8 to 8 tons. Its body was wide and low, supported by short but sturdy limbs that allowed it to move with some agility despite its bulk. The head, also protected by bony plates, featured small openings for the eyes and nostrils, indicating significant defensive adaptation.

Feeding and Diet

As a herbivore, the Ankylosaurus fed on a variety of low vegetation. Its broad snout suggests that it had a non-selective diet, consuming ferns, cycads, and possibly some angiosperms that were abundant in its habitat during the late Cretaceous. Although its teeth were relatively small, it is possible that it used a muscular tongue to assist in the intake and processing of food.

Habitat and Distribution

Fossils of Ankylosaurus have been primarily found in North America, in regions corresponding to present-day Montana, Wyoming, and Alberta. These discoveries indicate that it inhabited subtropical coastal plains, characterized by a warm and humid climate, with abundant vegetation that served as its food.

Behavior and Defense

The combination of its body armor and tail club suggests that the Ankylosaurus had highly effective defense mechanisms against predators, such as the Tyrannosaurus rex. The structure of its tail allowed it to use it as a blunt weapon, capable of inflicting significant damage on any attacker. Moreover, its sense of smell was well developed, which would have helped it detect both food sources and potential threats in its environment.

Paleontological Significance

The Ankylosaurus is one of the most studied armored dinosaurs and represents a notable example of defensive adaptations in the evolution of dinosaurs. Its discovery and analysis have provided valuable insights into the diversity and specialization of herbivores during the late Cretaceous.

In summary, the Ankylosaurus is a fascinating example of how evolution endowed certain species with unique features for their survival in a world full of predators. Its armor and tail club not only offered protection but also reflect the complexity and diversity of prehistoric life.