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Nigersaurus (/niːˈʒɛərsɔːrəs, ˈnaɪdʒərsɔːrəs/) is really a genus of rebbachisaurid sauropod dinosaur that lived throughout the center Cretaceous period of time, about 115 to a hundred and five million a long time back. It was found in the Elrhaz Formation in an area termed Gadoufaoua, in Niger.
Consuming like that could be tough on the dental wellness unless you do have a syteady supply of substitute teeth. Nigersaurus must have worn out its tooth crowns in a rapid-fire speed.
There have been discussion on no matter if its head was habitually held downwards, or horizontally like other sauropods. It lived in the riparian habitat, and its diet program most likely consisted of sentimental vegetation, like ferns, horsetails, and angiosperms. It is actually The most frequent fossil vertebrates found in the region, and shared its habitat with other dinosaurian megaherbivores, together with substantial theropods and crocodylomorphs.
Continuous Tooth Alternative: Teeth had been changed every single 14 times, making certain a sharp, useful dental battery to manage with continual wear from grazing.
Nigersaurus did not exhibit the exact same modifications found within the jaws of other dinosaurs with dental batteries, or mammals with elaborate chewing features. The decrease jaw was L-formed and divided into the subcylindrical transverse ramus, which contained the teeth, and also the back again ramus, which was additional lightweight and was The situation for most of the muscle attachments. It was unique in the tooth row expanded to the edges from the plane of the leading ramus of your lessen jaw.
A 2015 cladistic study by Wilsona plus the French palaeontologist Ronan Allain uncovered Rebbachisaurus itself to team While using the nigersaurines, as well as authors proposed that Nigersaurinae was hence a junior synonym of Rebbachisaurinae (because that title might have precedence).
The secret lies within the creature’s bones. Researchers might need identified a lot more Nigersaurus fossils If your animal had not had these a fragile bone structure. According to a examine by Sereno et al. 2007, this creature experienced an incredibly lightweight cranium. Many of the bones in Nigersaurus
A 2015 cladistic analyze by Wilsona as well as the French palaeontologist Ronan Allain found Rebbachisaurus itself to team While using the nigersaurines, as well as the authors instructed that Nigersaurinae was as a result a junior synonym of Rebbachisaurinae (since that title might have priority).
Nigersaurus also bears indications of minimal-angle tooth-to-tooth dress in on The within of the maxillary crowns, which indicates that jaw motion was restricted to exact up-and-down motions. Worn teeth through the lower jaw have not yet been discovered, but They can be envisioned to show opposing tooth-to-tooth use. A chance to elevate their heads effectively previously mentioned the bottom does not always suggest they browsed on goods there, and the brief neck of Nigersaurus might have limited the searching range in comparison with other diplodocoids.[three]
In comparison, Nigersaurus was within the small facet. What caught Absolutely everyone's notice was the dinosaur's mug.
What dinosaur has 500 teeth? An unorthodox herbivore, this reptile grazed in what's now the Sahara Desert 110 million decades in the past. These sauropod dinosaurs gathered foodstuff having a huge, wide mouth; the snout was wider compared to back with the creature's head on the original fossil cranium.
We are not speaking about AA Duracells here. Dental batteries had been successful foods processing applications used by many plant-eating dinos.
[13] Due to the lateral orientation from the teeth, it likely would not have been able to chew.[one] Nigersaurus Nigersaurus wore its tooth crowns down speedier than other dinosaurian herbivores,[three] and its tooth replacement rate was the best of any regarded dinosaur. Just about every tooth was replaced when each and every 14 times; the speed experienced Formerly been believed decreased. In distinction to Nigersaurus, sauropods with reduced tooth replacement premiums and broader tooth crowns are assumed to are actually Cover browsers.[12]