Aletopelta Facts
Pronunciation: ah-LEE-toe-PEL-tah
Name meaning: Wandering Shield
| Diet | Herbivore |
| Height | 1.5m |
| Length | 5m |
| Weight | 2 tonnes |
| Environment | Land |
| Era | Cretaceous |
| Period | Late Cretaceous |
| Type | Ankylosaur |
| Location | United States |
Aletopelta was a heavily armoured ankylosaur that roamed the coastal regions of what is now Southern California during the Late Cretaceous period, approximately 83.6 million years ago. This impressive herbivorous dinosaur measured around 5 metres in length and weighed about 2 tonnes, making it a substantial member of the ankylosaur family. Its fossils were discovered in the Point Loma Formation, providing valuable insights into the diverse dinosaur communities that existed along the ancient western coastline of North America.
Like other ankylosaurs, Aletopelta was a quadrupedal plant-eater built like a living tank. Its body was covered in protective bony plates called osteoderms, which formed a natural suit of armour that would have deterred most predators. These osteoderms are amongst the best-preserved parts of the fossil skeleton, giving palaeontologists detailed information about how this dinosaur's defensive system worked. Aletopelta would have browsed on low-growing plants, using its broad, flat teeth to process tough vegetation.
What makes Aletopelta particularly fascinating is the unique preservation of its remains. After the dinosaur died, its body became a miniature reef on the ancient seafloor, attracting various marine invertebrates that made their homes on the bones. Evidence shows that sharks also scavenged the carcass, leaving behind tooth marks that tell the story of this dinosaur's final resting place in the ancient ocean.
What made Aletopelta distinctive?
Aletopelta was characterised by its extensive body armour consisting of bony osteoderms embedded in its skin. The preserved remains show a robust, tank-like build typical of ankylosaurs, with a broad body and strong, pillar-like legs to support its considerable weight.
Behaviour
Aletopelta would have been a slow-moving browser, using its low-slung head to crop vegetation close to the ground. As a heavily armoured herbivore, it likely relied on its defensive plating rather than speed to avoid predators, possibly crouching down to protect its vulnerable underside when threatened.
Discovery
Aletopelta was first described by W. P. Coombs Jr. and T. A. Deméré in 1996. The original fossils were discovered at Point Loma Formation, Southern California, USA.
Aletopelta FAQ
What did Aletopelta eat?
Aletopelta was a herbivore that fed on plants. Like other ankylosaurs, it would have used its broad, flat teeth to process tough, fibrous vegetation such as ferns, cycads, and conifers that grew in its coastal environment during the
Late Cretaceous period.
How big was Aletopelta?
Aletopelta was approximately 5 metres long and weighed around 2 tonnes. It would have stood roughly 1.5 metres tall at the hip, making it a substantial but not gigantic member of the ankylosaur group.
When did Aletopelta live?
Aletopelta lived during the
Late Cretaceous period, approximately 83.6 million years ago. This places it in the later part of the dinosaur era, well before the mass extinction event that ended the age of dinosaurs.
Where was Aletopelta found?
Aletopelta fossils were discovered in the Point Loma Formation in Southern California, United States. This area was once a coastal marine environment during the
Late Cretaceous period.
How do you pronounce Aletopelta?
Aletopelta is pronounced 'ah-LEE-toe-PEL-tah', with emphasis on the second syllable. The name rolls off the tongue once you break it down into its component parts.
What does Aletopelta mean?
Aletopelta means 'Wandering Shield' in reference to its heavily armoured body and the fact that its remains were found far from other known ankylosaur discoveries, suggesting it had 'wandered' into this coastal region.
How fast could Aletopelta run?
The speed of Aletopelta is unknown, but like other heavily armoured ankylosaurs, it was likely a slow-moving dinosaur. Its bulky build and protective armour were designed for defence rather than speed.
What type of dinosaur was Aletopelta?
Aletopelta was an ankylosaur, one of the heavily armoured plant-eating dinosaurs. More specifically, it belonged to the family Ankylosauridae, which includes the most heavily armoured members of this group.
Was Aletopelta related to birds?
Aletopelta was not closely related to birds. As an ankylosaur, it belonged to the ornithischian ('bird-hipped') dinosaurs, but this group is not actually ancestral to modern birds, which evolved from theropod dinosaurs.
How many Aletopelta fossils have been found?
Only one Aletopelta specimen has been found - the holotype discovered in Southern California. This partial skeleton preserves important osteoderms (bony armour plates) that help scientists understand this dinosaur's appearance and defensive capabilities.
