It is unlikely the dinosaur fed on conifers, cycads, or aquatic vegetation, due respectively to their height, hard and stiff structure, and lack of appropriate habitat. This is unlike the way other sauropods have been restored, with their heads held more horizontally.[1]. The capital city of Nigeria is Abuja, in the middle of the country, although its biggest city is Lagos, on the coast. The lower jaw was S-shaped and divided into the subcylindrical transverse ramus, which contained the teeth, and the back ramus, which was more lightweight and was the location for most of the muscle attachments. [3] It likely lived in habitats dominated by inland floodplains (a riparian zone).[1]. This is further supported by facets on the labial (externally facing) side of the upper teeth, similar to Dicraeosaurus and Diplodocus, which are evidence that food or substrate wore the animal's teeth as it fed. A lower jaw assigned to the titanosaur Antarctosaurus is likewise similar to that of Nigersaurus, but may have evolved convergently. Some of the skull fossils were so thin that a strong light beam was visible through them. This was matched by an identical rotation of the dentary of the lower jaw. (Other sauropods, which had much longer necks, may well have nibbled on the high branches of trees, though even this remains a matter of some dispute. The pelvic and pectoral girdle bones were very thin also, often only several millimetres thick. That wide muzzle was perfect for scooping up ferns, horsetails and other low-lying plants. This article appeared on Wikipedia's Main Page as Today's featured article on January 18, 2014. Nigerian definition: 1. belonging to or relating to Nigeria or its people 2. a person from Nigeria 3. belonging to or…. The maxillary tooth row was in its entirety transversely rotated, its normal rear 90° everted towards the front. Creatures of the Jurassic Park Institute Website. With large fenestrae and thin bones, its skull was specialized for feeding. Worn teeth from the lower jaw have not yet been discovered, but they are expected to show opposing tooth-to-tooth wear. Rebbachisauridae is the basalmost family within the superfamily Diplodocoidea, which also contains the long-necked diplodocids and the short-necked dicraeosaurids. Nigersaurus. It was a British colony from 1914 and has been a member of the Commonwealth since becoming independent in 1960, although between 1995 and 1999 its membership was stopped after an argument over the execution of nine men. In 2007, a more detailed description of the skeleton was published, based on a specimen discovered ten years earlier. From Niger + -saurus. A Nigersaurus egy szokatlan, a porszívó szellőzőnyílására emlékeztető szájjal rendelkező növényevő volt, amely több mint száz éles fogával aprította fel az élelmet. Nigersaurus is a featured article; it (or a previous version of it) has been identified as one of the best articles produced by the Wikipedia community.Even so, if you can update or improve it, please do so. [8] Nigersaurus was dubbed a "Mesozoic cow" in the press, and Sereno stressed that it was the most unusual dinosaur he had ever seen. Below is a cladogram following an analysis by Federico Fanti and colleagues (2013), which confirmed the placement of Nigersaurus as a basal nigersaurine rebbachisaurid. a river in W Africa, rising in S Guinea, flowing NE through Mali, and then SE through … Therefore, no intact skulls or articulated skeletons have been found, and these specimens represent the most complete known rebbachisaurid remains. (2020, August 25). These connecting struts of bones were usually less than 2 mm (0.08 in) thick. Thanks to its eccentric maw, Nigersaurus is among the strangest-looking dinosaurs known to man. It further argued that the orientation of the semicircular canals varies significantly within modern species, and is therefore not reliable for determining head posture. The teeth in the lower jaw may have been 20–30% smaller than those in the upper jaw, but few are known, and they are of uncertain maturity. Capital: Niamey. About Nigersaurus Yet another Cretaceous feather in the cap of the globetrotting paleontologist Paul Sereno, Nigersaurus was a rather unusual sauropod , possessing a relatively short neck compared to the length of its tail; a flat, vacuum-shaped mouth packed with hundreds of teeth, arranged in about 50 columns; and almost comically wide jaws. Like other sauropods, its limbs were robust, contrasting with the extremely lightweight construction of the rest of the skeleton. Its brain-to-body-mass ratio was average for a reptile, and smaller than those of ornithischians and non-coelurosaurian theropods. https://www.thoughtco.com/nigersaurus-1092922 (accessed February 1, 2021). 458,976 sq. In contrast to Nigersaurus, sauropods with lower tooth replacement rates and broader tooth crowns are thought to have been canopy browsers. Nigersaurus had a wide muzzle filled with over 500 teeth, which were rapidly replaced about every 14 days. The snout was also proportionately shorter, and the tooth row was not at all prognathous, the snout tip not protruding relative to the remainder of the tooth series. It is one of the most commonly found vertebrates in the formation. There are 339 nigersaurus-related words in total, with the top 5 most semantically related being sauropod, elephant, fern, angiosperms and theropods.You can get the definition(s) of a word in the list below by tapping the question-mark icon next to it. Hi there! Nearly all rebbachisaurids had relatively short necks and a length of 10 m (33 ft) or less. HELL NO. 12 Followers. Stream Tracks and Playlists from NIGERSAURUS on your desktop or mobile device. The vertebral arches were so heavily pierced by extensions of the external air sacs that of their side walls little remained but 2 mm (0.08 in) thick intersecting laminae, the ridges between the pneumatic openings. [12] This was supported by a 2013 study that suggested the methods used by Sereno's team were imprecise, and that Nigersaurus habitually held its head like other sauropods. As a result, no other tetrapod had all of its teeth located as far to the front as Nigersaurus. Nigersaurus (meaning "Niger reptile") is a genus of Diplodocus-like sauropod dinosaur. Nigersaurus also bears signs of low-angle tooth-to-tooth wear on the inside of the maxillary crowns, which suggests that jaw movement was limited to precise up-and-down motions. English Wikipedia has an article on: Nigersaurus. The ability to raise their heads well above the ground does not necessarily mean they browsed on items there, and the short neck of Nigersaurus would have restricted the browsing range compared to other diplodocoids. It had a strange shovel-shaped head that it used to graze side to side to cut grass and eat it. Nigersaurus was a Rebbachisaurid sauropod that lived in what is now the countries Niger and Nigeria. ), What many people don't know is that Paul Sereno didn't actually discover this dinosaur; the scattered remains of Nigersaurus (in northern Africa's Elrhaz formation, in Niger ) were described by a French paleontologist in the late 1960's and introduced to the world in a paper published in 1976. Yet another Cretaceous feather in the cap of the globetrotting paleontologist Paul Sereno, Nigersaurus was a rather unusual sauropod, possessing a relatively short neck compared to the length of its tail; a flat, vacuum-shaped mouth packed with hundreds of teeth, arranged in about 50 columns; and almost comically wide jaws. Based on this biomechanical analysis, the team concluded that the head and muzzle were habitually oriented 67° downwards and close to ground level, as an adaptation for ground-level browsing. Like all sauropods, Nigersaurus was a megafaunal quadruped with a small head, thick hind legs, and a prominent tail. Though the nasal bones are not completely known, it appears the front margin of the bony nostril was closer to the snout than in other diplodocoids. [1] Nigersaurus lived in what is now Niger about 115 to 105 million years ago, during the Aptian and Albian ages of the mid-Cretaceous. Nigersaurus was suggested by Sereno and colleagues to be a ground-level, non-selective browser. The name Nigersaurus means "Niger's Lizard" and it was one of the oddest dinosaurs ever found. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. The Dinosaurs and Prehistoric Animals of Spain, Prosauropods - The Ancient Cousins of the Sauropods. It may have weighed around four tonnes, comparable to a modern elephant. Below is a massive list of nigersaurus words - that is, words related to nigersaurus. It lived in the middle of the Cretaceous period in what is now the Republic of Niger.Fossils of this dinosaur were first described in 1976, but it was only named in 1999 after more complete remains were found and described. Apart from this, the teeth were identical. The genus name Nigersaurus ("Niger reptile") is a reference to the country where it was discovered, and the specific name taqueti honours Taquet, who was the first to organize large-scale palaeontological expeditions to Niger. The same article also named Jobaria, another sauropod from Niger. The skull of Nigersaurus was delicate, with the four side fenestrae (openings in the skull) larger than in other sauropodomorphs. The front ends of the jaws had grooves that indicate the presence of a keratinous sheath. The fossils, along with a reconstructed skeleton mount and a plastic model of the head and neck, were subsequently presented at the National Geographic Society in Washington. pronoun. Bob Strauss is a science writer and the author of several books, including "The Big Book of What, How and Why" and "A Field Guide to the Dinosaurs of North America.". Nigersaurus was named and described in more detail by Sereno and colleagues only in 1999, based on remains of newly found individuals. Limb material and a scapula found nearby were also referred to the same specimen. This phase ranges from the Aptian to the Albian and even extents in the Cenomanian ages. The enamel on the teeth of Nigersaurus was highly asymmetrical, ten times thicker on the outwards facing side than on the inner side. Proper noun . The base genome of the Nigersaurusis brown skin with a lighter colored underbelly. Nigersaurus is known from the Elrhaz Formation of the Tegama Group in an area called Gadoufaoua, located in Niger. ThoughtCo. Despite this, the skull was resistant to the sustained shearing of the teeth. Learn more. Nearly all rebbachisaurids had relatively short necks and a length of 10 m (33 ft) or less. Strauss, Bob. a republic in NW Africa: formerly part of French West Africa. km). Vi fandt 6 synonymer for niger.Se nedenfor hvad niger betyder og hvordan det bruges på dansk. Another unique trait it had among sauropodomorphs was a closed supratemporal fenestra. The study noted that the "neutral" head and neck posture of modern animals does not necessarily correspond to their habitual head posture. In typically colorful fashion, Sereno described Nigersaurus as a cross between Darth Vader and a vacuum cleaner and also called it a "Mesozoic cow" (not an inaccurate description, if you ignore the fact that a full-grown Nigersaurus measured 30 feet from head to tail and weighed up to five tons!). After the iguanodontian Lurdusaurus, Nigersaurus was the most numerous megaherbivore. Its remains are judged to be about 115 to 98 million years old. Retrieved from https://www.thoughtco.com/nigersaurus-1092922. The subfamily Nigersaurinae, which includes Nigersaurus and closely related genera, was named by John A. Whitlock in 2011. Teeth similar to those of Nigersaurus have been found on the Isle of Wight and in Brazil, but it is unknown whether they belonged to relatives of this taxon, or to titanosaurs, whose remains have been found in the vicinity. On the basis of microtomography scans of skull elements of the holotype specimen, Sereno's team created a "prototype" Nigersaurus skull they could examine. Kentrosaurus Size compared to a human. Sereno and Jeffrey A. Wilson provided the first detailed description of the skull and feeding adaptations in 2005. This condition is otherwise known only in advanced ornithischians. 31 x 12 x 12 cm (LWH) Scale 1:20 Animal Figures fornisce i migliori prodotti dai migliori produttori. Nigerian Baby Names Below you will find our wide selection of Nigerian boy names and Nigerian girl names, as categorized by our name experts research, our readers feedback and other sources. Nigersaurus is the only known tetrapod animal to have had jaws wider than the skull and teeth that extended laterally across the front. It had little to no cancellous bone, making the centra thin bone plates filled with air spaces. Comparable in size to a modern African elephant, Nigersaurus was a fairly small quadruped dinosaur with a small head, relatively short neck, thick hind legs, and a prominent tail. ThoughtCo uses cookies to provide you with a great user experience. Remains thought to belong to Nigersaurus were first discovered during a 1965–72 expedition to the Republic of Niger led by French paleontologist Philippe Taquet, and first mentioned in a paper published in 1976. Nigersaurus is a genus of rebbachisaurid sauropod dinosaur that lived during the middle Cretaceous period, about 115 to 105 million years ago.It was discovered in the Elrhaz Formation in an area called Gadoufaoua, in the Republic of Niger. Like all sauropods, Nigersaurus was a megafaunal quadruped with a small head, thick hind legs, and a prominent tail. Had slightly curved crowns, which also contains the long-necked diplodocids and the marvels of skull! Nigersaurus, but may have evolved convergently tetrapod had all of its teeth as. 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