Dyoplosaurus Facts
Pronunciation: die-oh-plo-SORE-us
Name meaning: Double-armoured lizard
| Diet | Herbivore |
| Height | 1.5m |
| Length | 5m |
| Weight | 2 tonnes |
| Speed | 15 km/h |
| Environment | Land |
| Era | Cretaceous |
| Period | Late Cretaceous |
| Type | Ankylosaur |
| Location | Canada |
Dyoplosaurus was a heavily armoured ankylosaur that roamed the ancient landscapes of what is now Alberta, Canada, during the Late Cretaceous period around 83.6 million years ago. This impressive herbivorous dinosaur lived alongside many other famous dinosaurs in the Dinosaur Park Formation, including various ceratopsians and theropods.
As its name suggests, Dyoplosaurus was exceptionally well-protected, featuring a double layer of bony armour plating across its back and sides. This robust ankylosaur measured approximately 5 metres in length and stood about 1.5 metres tall at the hip, weighing around 2 tonnes. Its broad, low-slung body was perfectly adapted for browsing on low-growing vegetation, using its small beak-like mouth to crop ferns, cycads, and other Cretaceous plants.
The dinosaur's most distinctive feature was its extensive defensive armour, consisting of rows of bony plates called osteoderms embedded in its skin. These provided excellent protection against the sharp teeth and claws of contemporary predators. Like other ankylosaurs, Dyoplosaurus likely possessed a club-like tail weapon, though fossil evidence of this feature remains limited.
Dyoplosaurus was closely related to other Canadian ankylosaurs including Scolosaurus and Anodontosaurus, sharing many anatomical features with these contemporaries. Its discovery has helped palaeontologists better understand the diversity and evolution of armoured dinosaurs during the Late Cretaceous period in North America.
What made Dyoplosaurus distinctive?
Dyoplosaurus possessed an exceptionally thick double layer of bony armour plating across its back and sides, giving it unusually robust protection even among ankylosaurs. Its broad, flattened skull featured small spikes and knobs, whilst rows of defensive osteoderms created an almost impenetrable shield along its body.
Behaviour
Dyoplosaurus likely lived in small herds, grazing peacefully on low-growing vegetation throughout the day. When threatened by predators, it would have crouched down to protect its vulnerable belly whilst relying on its impressive armour plating for defence, possibly also using its tail as a weapon.
Discovery
Dyoplosaurus was first described by William Parks in 1924. The original fossils were discovered at Dinosaur Park Formation, Alberta, Canada.
Dyoplosaurus FAQ
What did Dyoplosaurus eat?
Dyoplosaurus was a herbivore that fed on low-growing plants such as ferns, cycads, horsetails, and early flowering plants. It used its small, beak-like mouth to crop vegetation close to the ground, processing plant material with its simple leaf-shaped teeth.
How big was Dyoplosaurus?
Dyoplosaurus measured approximately 5 metres in length and stood about 1.5 metres tall at the hip. It weighed around 2 tonnes, making it a medium-sized ankylosaur with a robust, heavily built frame designed to support its extensive armour plating.
When did Dyoplosaurus live?
Dyoplosaurus lived during the
Late Cretaceous period, approximately 83.6 million years ago. It inhabited the ancient landscapes that would eventually become the Dinosaur Park Formation in Alberta, Canada.
Where was Dyoplosaurus found?
Dyoplosaurus fossils have been discovered in the Dinosaur Park Formation in Alberta, Canada. This formation is famous for preserving a diverse array of
Late Cretaceous dinosaurs and provides excellent insight into ancient North American ecosystems.
How do you pronounce Dyoplosaurus?
Dyoplosaurus is pronounced 'die-oh-plo-SORE-us', with emphasis on the final syllable. The name breaks down into 'dyo' (double), 'plo' (armoured), and 'saurus' (lizard).
What does Dyoplosaurus mean?
Dyoplosaurus means 'double-armoured lizard' in Greek. This name refers to the dinosaur's distinctive double-layered bony armour plating, which provided exceptional protection compared to other ankylosaurs.
How fast could Dyoplosaurus run?
Despite its heavy armour, Dyoplosaurus could likely reach speeds of up to 15 km/h when necessary. Whilst not particularly fast, this would have been sufficient for escaping most predators, especially when combined with its formidable defensive capabilities.
What type of dinosaur was Dyoplosaurus?
Dyoplosaurus was an ankylosaur, a group of heavily armoured herbivorous dinosaurs. More specifically, it belonged to the family Ankylosauridae, which includes some of the most heavily defended dinosaurs that ever lived.
Was Dyoplosaurus related to birds?
As an ankylosaur, Dyoplosaurus belonged to the ornithischian (bird-hipped) dinosaurs, but it was not directly related to modern birds. Birds evolved from theropod dinosaurs, which were saurischians (lizard-hipped), making them only distantly related to Dyoplosaurus.
How many Dyoplosaurus fossils have been found?
Dyoplosaurus is known from limited fossil material, primarily skull and armour plate fragments discovered in the Dinosaur Park Formation. As with many ankylosaurs, complete skeletons are rare, making it a relatively poorly known species compared to some other dinosaurs.
