Nigersaurus and its closest family are grouped throughout the subfamily Rebbachisaurinae (previously considered grouped while in the eponymous Nigersaurinae) of the household Rebbachisauridae, which happens to be Portion of the sauropod superfamily Diplodocoidea. Nigersaurus was possibly a browser, and fed with its head near to the bottom. The location of its brain that detected scent was underdeveloped, Even though its brain sizing was corresponding to that of other dinosaurs.
Reconstructed skeleton of Nigersaurus, showcasing the dinosaur's distinctive 500-tooth jaw composition and elongated body.
Fossils of the dinosaur have been first described in 1976, but it absolutely was only named Nigersaurus taqueti in 1999, soon after even more and more finish continues to be have been uncovered and explained. The genus title usually means "Niger reptile", and the particular identify honours the palaeontologist Philippe Taquet, who found the primary continues to be.
Since various rebbachisaurids inhabited latitudes that would happen to be tropical to subtropical in the center Cretaceous, this pneumaticity could possibly have assisted the animals cope Together with the very large temperatures. In line with Ibiricu and colleagues, this adaptation may be a purpose why rebbachisaurids ended up the only group of diplodocoids that survived to the Late Cretaceous.[21]
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Teeth at various development levels, Museo di Storia Naturale di Venezia The slender teeth experienced a bit curved tooth crowns, which have been oval in cross-area. The crowns had been distinctive in acquiring well known ridges on the margins in their midline and sides. The teeth within the lessen jaw may perhaps have been twenty–30% lesser than People inside the upper jaw, but few are recognized, and they're of unsure maturity. Besides this, the teeth had been equivalent.[4] Under each active tooth there was a column of 9 replacement teeth inside the jaw.
Based upon this biomechanical analysis, the workforce concluded that The top and muzzle had been habitually oriented sixty seven° downwards and shut to ground stage, as an adaptation for floor-stage searching. This really is contrary to how other sauropods have already been restored, with their heads held additional horizontally.[three]
A 2023 research with the French palaeontologist Rémi Lefebvre and colleagues examined the microanatomical composition from the limb bones of Nigersaurus by way of CT-scans, the main this kind of review of the sauropod. Virtual sections of the limb bones sampled from folks of various dimensions ended up explored to ascertain the selection of variation. Large-body weight bearing animals normally have features connected with this situation, influencing the internal structure from the limb bones, nevertheless the variation Nigersaurus involving these kinds of bones is poorly identified.
As it absolutely was a prey animal, it was important for Nigersaurus to have motion hypersensitivity to detect any opportunity threats.
Fossil proof implies it lived in what is currently the Sahara Desert, feeding on ferns and other vegetation in its lush, riverine habitat.
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What dinosaur has five hundred teeth? An unorthodox herbivore, this reptile grazed in what's now the Sahara Desert 110 million years in the past. These sauropod dinosaurs gathered food stuff by using a big, broad mouth; the snout was wider when compared to the back with the creature's head on the initial fossil cranium.
[thirteen] Because of the lateral orientation of your teeth, it in all probability wouldn't have already been capable to chew.[1] Nigersaurus wore its tooth crowns down more quickly than other dinosaurian herbivores,[3] and its tooth substitution fee was the best of any acknowledged dinosaur. Every single tooth was replaced once every fourteen days; the rate experienced Formerly been believed decrease. In contrast to Nigersaurus, sauropods with lessen tooth alternative prices and broader tooth crowns are thought to have been Cover browsers.[12]
Nigersaurus didn't show the same modifications seen while in the jaws of other dinosaurs with dental batteries, or mammals with elaborate chewing features. The lessen jaw was L-formed and divided in the subcylindrical transverse ramus, which contained the teeth, as well as back ramus, which was extra light-weight and was the location for a lot of the muscle mass attachments. It was unique in which the tooth row expanded to the edges in the aircraft of the primary ramus with the reduce jaw.