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| - Metriacanthosaurus was a large theropod dinosaur from the Early Cretaceous. Its fossil remains are very fragmentary, and little is known about it. Based on the few bones found, it has been classified as an allosaur related to Yangchuanosaurus.
- In 1923, German paleontologist Friedrich von Huene wrote a paper on Jurassic and Cretaceous European carnivorous dinosaurs. In this paper, he examined a specimen, OUM J.12144, including an incomplete hip, a leg bone, and part of a backbone, and believed it was a new species of Megalosaurus: Megalosaurus parkeri. The specific name honours W. Parker who in the nineteenth century had collected the fossils near Jordan's Cliff at Weymouth.[1] In 1932, however, von Huene concluded it was species of Altispinax, A. parkeri.[2]
- 'Metriacanthosaurus is a genus of carnivorous dinosaurs. It belongs to the recently classified Sinraptoridae, which is its own distinct family, in its own right - like so many other Victorian Era discovered theropod Dinosaurs, the fossils of what were to be named Metriacanthosaurus, were dumped in the 'wastebasket taxon' of Megalosaurus, which was thought to have been a genus of dozens of species. In time, Paleontologists shunned the old ways which were lazy and inaccurate, leading to many so called Megalosaurs being reclassified as something else. In some cases, the 'Megalosaur' remains did not even belong to any kind of Dinosaur. Sinraptor, from China, is one of its closest relatives. The only species that is known of this genus is Metriacanthosaurus parkeria. This Theropod lived during
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| abstract
| - 'Metriacanthosaurus is a genus of carnivorous dinosaurs. It belongs to the recently classified Sinraptoridae, which is its own distinct family, in its own right - like so many other Victorian Era discovered theropod Dinosaurs, the fossils of what were to be named Metriacanthosaurus, were dumped in the 'wastebasket taxon' of Megalosaurus, which was thought to have been a genus of dozens of species. In time, Paleontologists shunned the old ways which were lazy and inaccurate, leading to many so called Megalosaurs being reclassified as something else. In some cases, the 'Megalosaur' remains did not even belong to any kind of Dinosaur. Sinraptor, from China, is one of its closest relatives. The only species that is known of this genus is Metriacanthosaurus parkeria. This Theropod lived during the late Jurassic Period of Europe, hunting contemporary herbivores, such as Callovosaurus. In 1923, the paleontologist Friedrich von Hume described a few fossils and concluded that they belonged to a new species of the Megalosaurus genus. In the 1960s Alick Walker concluded that the fossils where to different from Megalosaurus and concluded that this species belonged to a unique genus, he called Metriacanthosaurus. The species was named P'arkeria. In 1977, an almost complete skeleton of large Theropod was discovered in China. It was classified as a new species (shangyouensis) and a member of a new genus (Yangchuanosaurus). According to Gregory S. Paul, the genus Yangchuanosaurus was identical to the genus Metriacanthosaurus and therefore classified the animal in 1988 as Metriacanthosaurus shangyouensis. But this reclassification was later canceled.
- Metriacanthosaurus was a large theropod dinosaur from the Early Cretaceous. Its fossil remains are very fragmentary, and little is known about it. Based on the few bones found, it has been classified as an allosaur related to Yangchuanosaurus.
- In 1923, German paleontologist Friedrich von Huene wrote a paper on Jurassic and Cretaceous European carnivorous dinosaurs. In this paper, he examined a specimen, OUM J.12144, including an incomplete hip, a leg bone, and part of a backbone, and believed it was a new species of Megalosaurus: Megalosaurus parkeri. The specific name honours W. Parker who in the nineteenth century had collected the fossils near Jordan's Cliff at Weymouth.[1] In 1932, however, von Huene concluded it was species of Altispinax, A. parkeri.[2] In 1964, scientist Alick Walker decided these fossils were too different from Altispinax, as it lacked the long vertebral spines, and named a new genus, Metriacanthosaurus.[3] The generic name is derived from Greek metrikos, "moderate", and akantha, "spine". Metriacanthosaurus thus gets its name from its vertebrae, which are taller than typical carnosaurs, like Allosaurus, but lower than other high-spined dinosaurs like Acrocanthosaurus. Metriacanthosaurus was a medium-sized theropod with a femur length of eighty centimetres. Gregory S. Paul in 1988 estimated its weight at a tonne. Originally assigned by Walker to the Megalosauridae, Metriacanthosaurus has since been found to form a family with Yangchuanosaurus and other close relatives, named Metriacanthosauridae in 1988. Contrary to ICZN rules for naming animal groups, this family has been referred to mainly by the junior synonym Sinraptoridae.
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