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Carcharodontosauriformes
Carnosauria is an extinct group of carnivorous theropod dinosaurs that lived during the Jurassic and Cretaceous periods. While Carnosauria was historically considered largely synonymous with Allosauroidea, some recent studies have revived Carnosauria as clade including both Allosauroidea and Megalosauroidea (which is sometimes recovered as paraphyletic with respect to Allosauroidea), and thus including the majority of non-coelurosaurian members of theropod clade Tetanurae. Other researchers have found Allosauroidea and Megalosauroidea to be unrelated groups.Cau A. (2024)A Unified Framework for Predatory Dinosaur Macroevolution Bollettino della Società Paleontologica Italiana, 63(1): 1-19. Distinctive characteristics of carnosaurs include large eye sockets, a long narrow skull and modifications of the legs and pelvis such as the thigh (femur) being longer than the shin (tibia). Carnosaurs first appeared in the Middle Jurassic around , and the last definitive carnosaur family ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eocarcharia
''Eocarcharia'' (meaning "dawn shark") is an extinct genus of theropod dinosaurs found in what is now the western Ténéré Desert of Niger. It is known from several skull bones collected in 2000 by an expedition to the Early Cretaceous (Aptian–Albian ages) Elrhaz Formation (Gadoufaoua locality) led by American paleontologist Paul Sereno. They were then described in 2008 by Sereno and Steve Brusatte. The genus contains a Monotypic taxon, single species, ''Eocarcharia dinops''. Sereno and Brusatte identified the remains as a new carcharodontosaurid, but later studies suggested that the species is chimaeric, comprising bones of multiple unrelated taxa. Some of the ''Eocarcharia'' material, including the holotype (name-bearing) specimen, likely belongs to a baryonychine spinosaurid. This would render ''Eocarcharia'' a member of this group, closely related to the coeval ''Suchomimus''. Meanwhile, the definitively carcharodontosaurid bones, a and teeth, belong to a separate distinct ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
