Hatzegopteryx is quite different, though, the researchers point out, having a short, thick neck with extremely wide bones and a spongy filling which added even more strength. sp. Players also bu… [16], Apart from Hatzegopteryx, there are various other unusual denizens of the Haţeg Island ecosystem. [1] In 2018, Mátyás Vremir concluded that Hatzegopteryx likely had a shorter and broader skull, the length of which he estimated at 1.6 metres. This unusual construction differs from that of other pterosaurs, and resembles more closely the structure of expanded polystyrene (used to manufacture Styrofoam). Hatzegopteryx is a member of a group of pterosaurs known as azhdarchids. It feeds on the ground picking up prey with it's long, slender beak. A Hatzegopteryx („hátszegi szárny”) hiányos csontvázát Erdélyben, a Hátszegi-medencében találták meg. Hatzegopteryx ("Hațeg basin wing") is a genus of azhdarchid pterosaur found in the late Maastrichtian deposits of the Densuş Ciula Formation, an outcropping in Transylvania, Romania. Others think they waded and probed sand and mud to find fish, crabs and worms. With a skull nearly 3 meters long and a 10 meter wingspan, it was as tall as a giraffe and the top predator on Hațeg Island. It may have also used its beak like a stork does and scoop up fish from the ocean to gobble down. 582. Additional specimens, including a neck vertebra, were later placed in the genus, representing a range of sizes. He enjoys teaching and talking about physics. Due to lack of remains, the exact size of Hatzegopteryx is uncertain. For most other giant azhdarchids, including Arambourgiania, this surface is less than 2.6 millimetres (0.10 in) thick. Meanwhile, the same vertebrae in the similarly-giant Arambourgiania measured 2.652 metres (8 ft 8.4 in); this indicates that the neck of Hatzegopteryx is about 50–60% the length of what would be expected for a giant azhdarchid of its size. Even the hypothetically longer anterior neck vertebrae of Hatzegopteryx would be able to withstand four to seven body weights. in 2002 based on parts of the skull and humerus. Hatzegopteryx was a pterosaur which lived approximately 65 million years ago during the Late Cretaceous Period. The Hatzegopteryx fossil discovered on the Isle of Wight has shed new light on this magnificent species which some believe was the biggest flying creature of the period. [8], As a consequence of its robust, thick-walled vertebrae, the neck of Hatzegopteryx was much stronger than that of Arambourgiania. Which begs the question: Why was such a large pterosaur living on an island populated by dwarf dinosaurs? It was one of the largest pterosaurs known to exist, a feat shared by Quetzalcoatlus. These were initially the basis of the taxon's referral to the clade Azhdarchidae,[1] but they are also similar enough to be a basis for the synonymy of Hatzegopteryx and Quetzalcoatlus. Unusually among giant azhdarchids, Hatzegopteryx had a very wide skull bearing large muscular attachments; bones with a spongy internal texture instead of hollow; and a short, robust, and heavily muscled neck measuring 1.5 metres (5 ft) long, which was about half the length of other azhdarchids with comparable wingspans, and was capable of withstanding strong bending forces. Based on the inadvertent inclusion of jaw material of another pterosaur species, possibly a Tapejara or a form related to Tupuxuara. [5] However, this is likely not true, since the neck vertebrae of large pterodactyloids generally tend to be wider and larger than the rest of the vertebrae. There are a few things that make the Hatzegopteryx so unique: What did Hatzegopteryx eat? The skull fragments, left humerus, and other fossilised remains indicate it was the largest pterosaur.The skeleton of Hatzegopteryx has been considered identical to the known remains of Quetzalcoatlus northropi. [8] Although initially identified as a third neck vertebra,[5] these traits supports the identification of the vertebra as coming from the rear of the neck, more specifically as being the seventh vertebra. [15] It is significantly larger than any other terrestrial predator from Maastrichtian Europe; due to its large size in an environment otherwise dominated by island dwarf dinosaurs, with no large hypercarnivorous theropods in the region, it has been suggested that Hatzegopteryx played the role of an apex predator in the Haţeg Island ecosystem. [8], Similarities between the humerus of Hatzegopteryx and Quetzalcoatlus northropi have been noted; both have a long, smooth deltopectoral crest, and a thickened humeral head. Posted by 2 years ago. With no other giant predators on the island these Hatzegopteryx were the top of their ecosystem. It would have eaten small dinosaurs such as Magyarosaurus and possibly Bradycneme. Unfortunately, what is known about this animal has only been gathered from a few bones. [8], The size of Hatzegopteryx was initially estimated by comparing the 236 mm (9.3 in) humerus fragment with that of Quetzalcoatlus northropi, which has a 544 mm (21.4 in)-long humerus. Speaking of prey, what exactly did Hatzegopteryx eat? Pteranodon Facts and Figures. Although estimates of pterosaur size based on vertebrae alone are not particularly reliable, the size of this vertebra is consistent with an animal that measured 10 to 12 metres (33 to 39 ft) in wingspan. 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