#matheronodon

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Day 19 of my palette challenge (palettes found here) has the scissor-toothed rhabdodontid Matheronodon in #3, taking advantage of a fallen Sabalites palm.

[252mya]

Matheronodon provincialis

Artwork by Joschua Knüppe

This 4.5 m (15 feet) long herbivore belongs to a group called rhabdodontids, relatives of the better known duckbilled dinosaurs. While the giant duckbills had hundreds of small teeth packed together like a grinding stone, rhabdodontids like Matheronodon had a few oversized teeth that worked more like chisels.

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252MYA creates custom-made artwork for private collections and editorial, scientific, or educational project.

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Plant-eating dinosaur had huge chisel-shaped teeth

Rhabdodontids are known from Cretaceous rocks in Europe. They evolved a unique way to break down fibrous plants: scissor-like jaws and teeth. Individual teeth lined up and worked together to form blade-like surfaces capable of slicing tough palm leaves.

Instead of opting for a battery of hundreds of small teeth like its relatives the duck-bill dinosaurs, this rhabdodontid had just a few, giant, chisel-shaped cheek teeth.

Image by Joschua Knüppe

[a-dinosaur-a-day]

Matheronodon provincialis

By Scott Reid on @drawingwithdinosaurs

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Name: Matheronodon provincialis

Name Meaning: Matheron Tooth

First Described: 2017

Described By: Godefroit et al. 

Classification: Dinosauria, Ornithischia, Genasauria, Neornithischia, Cerapoda, Ornithopoda, Iguanodontia 

Hey thanks to a scheduling error we have a nonavian dinosaur today! Matheronodon was a Rhabdodontid - a group of large bipedal ornithopods - from Velauax-La Bastide Neuve in Bouches-du-Rhône France. It lived from about 74 to 72 million years ago, in the Campanian of the Cretaceous, and it is known from parts of the jaw and teeth, indicating it was a rather large for such an early derived Ornithopod, probably around 5 meters in length. It has a short, robust jaw, with a bar like structure on the interior like its relative Rhabdodon; it also has only a few teeth that were very large and emerge in alternating sockets. This would have given Matheronodon teeth like scissors, that would have allowed it to feed and cut off tough plants. This is rather similar, if accomplished differently, to the feeding mechanism of Hadrosaurs, indicating this scissor-like chewing function evolved multiple times. It may have fed on monocots such as palm trees. It lived in a shoreline environment near various invertebrates and the titanosaur Atsinganosaurus, as well as some other unnamed dinosaurs and other animals. 

Source: 

https://en.wikipedia.org/wiki/Matheronodon

[albertonykus]

A selection of new dinosaurs described in 2017.