Allosauroidea and Dinosaur

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Difference between Allosauroidea and Dinosaur

Allosauroidea vs. Dinosaur

Allosauroidea is a superfamily or clade of theropod dinosaurs which contains four families — the Metriacanthosauridae, Allosauridae, Carcharodontosauridae, and Neovenatoridae. Dinosaurs are a diverse group of reptiles of the clade Dinosauria.

Allosaurus

Allosaurus is a genus of carnivorous theropod dinosaur that lived 155 to 150 million years ago during the late Jurassic period (Kimmeridgian to early TithonianTurner, C.E. and Peterson, F., (1999). "Biostratigraphy of dinosaurs in the Upper Jurassic Morrison Formation of the Western Interior, U.S.A." Pp. 77–114 in Gillette, D.D. (ed.), Vertebrate Paleontology in Utah. Utah Geological Survey Miscellaneous Publication 99-1.). The name "Allosaurus" means "different lizard" alluding to its unique concave vertebrae (at the time of its discovery).

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Bird

Birds, also known as Aves, are a group of endothermic vertebrates, characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton.

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Carcharodontosauridae

Carcharodontosaurids (from the Greek καρχαροδοντόσαυρος, carcharodontósauros: "shark-toothed lizards") were a group of carnivorous theropod dinosaurs.

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Clade

A clade (from κλάδος, klados, "branch"), also known as monophyletic group, is a group of organisms that consists of a common ancestor and all its lineal descendants, and represents a single "branch" on the "tree of life".

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Genus

A genus (genera) is a taxonomic rank used in the biological classification of living and fossil organisms, as well as viruses, in biology.

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Kevin Padian

Kevin Padian (born 1951) is a Professor of Integrative Biology at the University of California, Berkeley, Curator of Paleontology, University of California Museum of Paleontology and President of the National Center for Science Education.

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Mapusaurus

Mapusaurus ("Earth lizard") was a giant carnosaurian dinosaur from the early Late Cretaceous (late Cenomanian to early Turonian stage) of what is now Argentina and possibly Chile.

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Metriacanthosauridae

Metriacanthosauridae is an extinct family of theropod dinosaurs that lived from the Middle Jurassic to the Early Cretaceous.

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Most recent common ancestor

In biology and genealogy, the most recent common ancestor (MRCA, also last common ancestor (LCA), or concestor) of any set of organisms is the most recent individual from which all the organisms are directly descended.

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Othniel Charles Marsh

Othniel Charles Marsh (October 29, 1831 – March 18, 1899) was an American paleontologist.

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Phylogenetic nomenclature

Phylogenetic nomenclature, often called cladistic nomenclature, is a method of nomenclature for taxa in biology that uses phylogenetic definitions for taxon names as explained below.

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Stage (stratigraphy)

In chronostratigraphy, a stage is a succession of rock strata laid down in a single age on the geologic timescale, which usually represents millions of years of deposition.

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Theropoda

Theropoda (or, from Greek θηρίον "wild beast" and πούς, ποδός "foot") or theropods are a dinosaur suborder characterized by hollow bones and three-toed limbs.

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Thomas R. Holtz Jr.

Thomas Richard Holtz Jr., Ph.D. (born 1965 in Los Angeles) is an American vertebrate palaeontologist and senior lecturer at the University of Maryland's Department of Geology.

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