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ZoomDinosaurs.com
What are Taxonomy and Cladistics How Are Dinosaurs Classified? Dinosaur Genera Not Dinosaurs, but Old and Interesting
Major Dinosaur Families Saurischian Dinosaurs
"Lizard-Hipped"
Ornithischian Dinosaurs
"Bird-Hipped"
Dinosaur Cladogram

Dinosaur Genera: O


A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

This is a list of known dinosaur genera (the plural of genus). Click on a dinosaur's name to go to information about it. After each genus name (in italics), the namer(s) of the dinosaur is listed, along with the year it was named. The bold-faced dinosaurs are scientifically valid; the others are either dubious or not yet formally described. Dinosaurs whose authors are listed in red were carnivores (meat-eaters); dinosaurs listed in green were herbivores (plant-eaters)

Terms used in the dinosaur genera list:

nomen dubium - A genus name is described as a nomen dubiumif its classification is not certain. Usually this is because there is insufficient fossil material available.
nomen nudum - A genus name is described as a nomen nudumif it has been insufficiently described or lacks a type species.
Ichnogenus - An ichnogenus is a genus known only from fossilized footprints (or other trace fossils). These may belong to a dinosaur also known from fossilized bones, but it is virtually impossible to determine this.
vide - A genus that was named by the second listed author, but is attributed to the first author(s) by the second.
/ (slash) - A name preoccupied (already in use) by the second indicated author(s). The first authors were unaware of this when they named the dinosaur.

O

Ohmdenosaurus Wild, 1978
Oligosaurus Seeley, 1881
Omeisaurus Young, 1939
Omosaurus Owen, 1875/Leidy, 1856
Onychosaurus Nopcsa, 1902
Opisthocoelicaudia Borsuk-Bialynicka, 1977
Oplosaurus Gervais, 1852
Orcomimus Triebold, 1997 [nomen nudum]
Orinosaurus Lydekker, 1889
Ornatotholus Galton and Sues, 1983
Orinosaurus Lydekker, 1889 [nomen dubium]
Ornithodesmus Seeley, 1887
Ornithoides Osborn, 1924 [nomen nudum]
Ornitholestes Osborn, 1903
Ornithomerus Seeley, 1881
Ornithomimoides von Huene and Matley, 1933
Ornithomimus Marsh, 1890
Ornithopsis Seeley, 1870
Ornithotarsus Cope, 1869 [nomen dubium]
Orodromeus Horner and Weishampel, 1988
Orosaurus Huxley, 1867/Peters, 1862
Orthogoniosaurus Das-Gupta, 1931
Orthomerus Seeley, 1883
Oshanosaurus Chao, 1985 [nomen nudum]
Othnielia Galton, 1977
Ouranosaurus Taquet, 1976
Oviraptor Osborn, 1924
Ovoraptor Osborn, 1924 [nomen nudum]
Ozraptor
Long and Molnar, 1998

Dinosaur Genera: O


A B C D E F G H I J K L M N O P Q R S T U V W X Y Z




ZoomDinosaurs.com
What are Taxonomy and Cladistics How Are Dinosaurs Classified? Dinosaur Genera Not Dinosaurs, but Old and Interesting
Major Dinosaur Families Saurischian Dinosaurs
"Lizard-Hipped"
Ornithischian Dinosaurs
"Bird-Hipped"
Dinosaur Cladogram




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