Tatankacephalus Facts
Pronunciation: tah-TAN-kah-SEF-ah-lus
Name meaning: Bison Head
| Diet | Herbivore |
| Height | 2m |
| Length | 7m |
| Weight | 3 tonnes |
| Environment | Land |
| Era | Cretaceous |
| Period | Early Cretaceous |
| Type | Ankylosaur |
| Location | North America |
Tatankacephalus was a heavily armoured ankylosaur that roamed the landscapes of North America during the Early Cretaceous period, approximately 113 million years ago. This impressive herbivorous dinosaur measured around 7 metres in length and stood about 2 metres tall at the hip, making it a substantial presence in its ancient ecosystem.
As an ankylosaur, Tatankacephalus was built like a living tank, with a low-slung, broad body covered in protective bony plates called osteoderms. Its sturdy four legs supported its considerable bulk as it moved slowly through the Cretaceous forests and plains. The dinosaur's name, meaning 'bison head', reflects the robust nature of its skull, which was discovered in the Cedar Mountain Formation of Utah.
Like other ankylosaurs, Tatankacephalus was a dedicated plant-eater, using its beak-like mouth to crop low-growing vegetation such as ferns, cycads, and early flowering plants. Its simple, leaf-shaped teeth were perfectly adapted for processing tough plant material, whilst its broad gut provided ample space for the lengthy digestion process required to break down fibrous vegetation.
Tatankacephalus represents an important early member of the nodosaurid family, helping palaeontologists understand how these armoured giants evolved during the Cretaceous period. Its discovery has provided valuable insights into the diversity of ankylosaurs that inhabited western North America over 100 million years ago.
What made Tatankacephalus distinctive?
Tatankacephalus possessed a robust, heavily built skull that earned it the name 'bison head', along with extensive body armour made up of bony plates embedded in its skin. Its low, wide stance and tank-like build made it instantly recognisable as a formidable ankylosaur.
Behaviour
Tatankacephalus likely lived a relatively solitary lifestyle, slowly browsing through Early Cretaceous vegetation whilst relying on its impressive armour for protection from predators. When threatened, it probably crouched down to protect its vulnerable belly, presenting only its heavily armoured back and sides to attackers.
Discovery
Tatankacephalus was first described by William Lee Parsons in 2008. The original fossils were discovered at Cedar Mountain Formation, Utah, USA.
Tatankacephalus FAQ
What did Tatankacephalus eat?
Tatankacephalus was a herbivore that fed on low-growing plants such as ferns, cycads, and early flowering plants. It used its beak-like mouth to crop vegetation and had simple, leaf-shaped teeth for processing tough plant material.
How big was Tatankacephalus?
Tatankacephalus was approximately 7 metres long and stood about 2 metres tall at the hip. It weighed an estimated 3 tonnes, making it a substantial but not gigantic member of the ankylosaur family.
When did Tatankacephalus live?
Tatankacephalus lived during the
Early Cretaceous period, specifically around 113.2 million years ago. This places it in the Albian stage of the Cretaceous period.
Where was Tatankacephalus found?
Tatankacephalus fossils were discovered in the Cedar Mountain Formation in Utah, USA. This rock formation has yielded many important
Early Cretaceous dinosaur fossils from western North America.
How do you pronounce Tatankacephalus?
Tatankacephalus is pronounced 'tah-TAN-kah-SEF-ah-lus'. The first part comes from the Lakota word 'tatanka', whilst the second part follows typical Greek pronunciation patterns.
What does Tatankacephalus mean?
Tatankacephalus means 'bison head'. The name combines the Lakota word 'tatanka' (meaning bison) with the Greek word 'cephalus' (meaning head), referring to its robust, heavily built skull.
How fast could Tatankacephalus run?
The speed of Tatankacephalus is unknown, but like other ankylosaurs, it was likely quite slow-moving due to its heavy armour and robust build. It probably relied on its protective plating rather than speed to avoid predators.
What type of dinosaur was Tatankacephalus?
Tatankacephalus was an ankylosaur, specifically a member of the Nodosauridae family. These were heavily armoured, herbivorous dinosaurs known for their tank-like appearance and defensive capabilities.
Was Tatankacephalus related to birds?
Tatankacephalus was not closely related to birds. As an ornithischian dinosaur, it belonged to a different major group from the theropod dinosaurs that eventually gave rise to modern birds.
How many Tatankacephalus fossils have been found?
Tatankacephalus is known from limited fossil material, primarily skull remains discovered in Utah. As with many ankylosaurs, complete skeletons are rare, making each discovery particularly valuable for understanding these armoured dinosaurs.
