Proplanicoxa Facts
Pronunciation: pro-PLAN-ih-COX-ah
Name meaning: Forward flat hip
| Diet | Herbivore |
| Height | 1.5m |
| Length | 4m |
| Weight | 500 kg |
| Environment | Land |
| Era | Cretaceous |
| Period | Early Cretaceous |
| Type | Ornithopod |
| Location | North America |
Proplanicoxa was a medium-sized ornithopod dinosaur that lived during the Early Cretaceous period, approximately 132.6 million years ago. This herbivorous dinosaur roamed the ancient landscapes of what is now Montana, USA, during a time when the climate was much warmer and more humid than today.
Standing about 1.5 metres tall at the hip and measuring roughly 4 metres in length, Proplanicoxa was built for a life of browsing on prehistoric plants. Like other ornithopods, it possessed a beak-like mouth perfect for cropping vegetation, along with rows of grinding teeth further back in its jaws for processing tough plant material. Its body was stocky and well-built, weighing around half a tonne.
What made Proplanicoxa particularly interesting was its hip structure, which gave the dinosaur its name meaning 'forward flat hip'. This unique pelvic arrangement may have provided advantages in movement or posture that helped it thrive in its Early Cretaceous environment. The dinosaur likely moved on both two and four legs, depending on whether it was feeding, running, or simply walking.
Proplanicoxa lived during an important time in dinosaur evolution, when many ornithopod groups were diversifying and developing new adaptations for processing plant food. Its discovery has helped palaeontologists better understand the early evolution of iguanodontian dinosaurs in North America.
What made Proplanicoxa distinctive?
Proplanicoxa had a distinctive forward-angled, flattened hip structure that gave it its name. It possessed a sturdy, medium-sized build with a beak-like snout and grinding teeth typical of plant-eating ornithopods.
Behaviour
Proplanicoxa likely spent much of its time browsing on low-growing plants and ferns, using its beak to crop vegetation. It could probably switch between walking on four legs while feeding and moving on two legs when travelling longer distances or fleeing from predators.
Discovery
Proplanicoxa was first described by Tony Fiorillo in 2003. The original fossils were discovered at Cloverly Formation, Montana, USA.
Proplanicoxa FAQ
What did Proplanicoxa eat?
Proplanicoxa was a herbivore that fed on
Early Cretaceous plants including ferns, cycads, and early flowering plants. It used its beak-like mouth to crop vegetation and had grinding teeth to process tough plant material.
How big was Proplanicoxa?
Proplanicoxa stood about 1.5 metres tall at the hip and measured roughly 4 metres in length. It weighed approximately 500 kilograms, making it a medium-sized ornithopod dinosaur.
When did Proplanicoxa live?
Proplanicoxa lived during the
Early Cretaceous period, approximately 132.6 million years ago. This was a time when flowering plants were beginning to evolve and diversify.
Where was Proplanicoxa found?
Proplanicoxa fossils were discovered in the Cloverly Formation in Montana, USA. This geological formation is famous for preserving many
Early Cretaceous dinosaur species.
How do you pronounce Proplanicoxa?
Proplanicoxa is pronounced 'pro-PLAN-ih-COX-ah', with the emphasis on the second syllable 'PLAN'.
What does Proplanicoxa mean?
Proplanicoxa means 'forward flat hip' in Latin, referring to the distinctive forward-angled and flattened structure of its pelvic bones, which helped scientists identify it as a new species.
How fast could Proplanicoxa run?
The running speed of Proplanicoxa is not well established from current fossil evidence. However, as a medium-sized ornithopod, it could likely move at moderate speeds when necessary to escape predators.
What type of dinosaur was Proplanicoxa?
Proplanicoxa was an ornithopod dinosaur, belonging to the family Iguanodontidae. Ornithopods were plant-eating dinosaurs known for their advanced chewing abilities and often duck-like beaks.
Was Proplanicoxa related to birds?
Like all dinosaurs, Proplanicoxa was distantly related to birds, but as an ornithopod, it was not closely related to the theropod dinosaurs that directly evolved into birds. Ornithopods represent a different branch of the dinosaur family tree.
How many Proplanicoxa fossils have been found?
Proplanicoxa is known from limited fossil material discovered in the Cloverly Formation. The exact number of specimens is not widely published, but like many dinosaur species, it is likely known from a relatively small number of fossil remains.
