الديناصورات

Oceanodroma monorhis

Oceanodroma monorhis

Carnivore

Odontiphorinidae

Odontiphorinidae

Herbivore

Ocyphaps lophotes

Ocyphaps lophotes

Herbivore

Odontophoridae

Odontophoridae

Herbivore

Odontophorus guttatus

Odontophorus guttatus

Herbivore

Oceanodroma castro

Oceanodroma castro

Carnivore

Pelagornis miocaenus

Pelagornis miocaenus

Carnivore

Oenanthe hispanica

Oenanthe hispanica

Insectivore

Oenanthe

Oenanthe

Insectivore

Oenanthe oenanthe

Oenanthe oenanthe

Insectivore

Saichania chulsanensis

Saichania chulsanensis

Cretaceous Late Herbivore

Onactornis depressus

Onactornis depressus

Carnivore

Salpinctes obsoletus

Salpinctes obsoletus

Carnivore

Zosterops mauritianus

Zosterops mauritianus

Carnivore

Siats meekerorum

Siats meekerorum

Cretaceous Late Carnivore

Oreopholus

Oreopholus

Carnivore

Oreortyx pictus

Oreortyx pictus

Herbivore

Sibirionetta formosa

Sibirionetta formosa

Herbivore

Orionides

Orionides

Jurassic Late Carnivore

Ornitholestes hermanni

Ornitholestes hermanni

Jurassic Late Carnivore

Kievornis rogovitshi

Kievornis rogovitshi

Carnivore

Sibirotitan

Sibirotitan

Cretaceous Early Herbivore

Saltasaurini

Saltasaurini

Cretaceous Late Herbivore

Sibirotitan astrosacralis

Sibirotitan astrosacralis

Cretaceous Early Herbivore

Sidersaura marae

Sidersaura marae

Cretaceous Late Herbivore

Samanadrinda surghari

Samanadrinda surghari

Jurassic Middle Carnivore

Ornithothoraces

Ornithothoraces

Cretaceous Late Carnivore

Ornithurae

Ornithurae

Cretaceous Late Carnivore

Ortalis

Ortalis

Herbivore

Oscaravis

Oscaravis

Carnivore

Sanpasaurus yaoi

Sanpasaurus yaoi

Jurassic Early Herbivore

Otis tarda

Otis tarda

Carnivore

Otididae

Otididae

Carnivore

Sierraceratops turneri

Sierraceratops turneri

Cretaceous Late Herbivore

Procellariidae

Procellariidae

Carnivore

Sanxiasaurus modaoxiensis

Sanxiasaurus modaoxiensis

Jurassic Early Herbivore

Procellariiformes

Procellariiformes

Cretaceous Late Carnivore

Cedarpelta bilbeyhallorum

Cedarpelta bilbeyhallorum

Cretaceous Early Herbivore

Ovaloolithus dinornithoides

Ovaloolithus dinornithoides

Cretaceous Late Herbivore

Otus manadensis

Otus manadensis

Carnivore

Sarahsaurus aurifontanalis

Sarahsaurus aurifontanalis

Jurassic Early

Saraikimasoom vitakri

Saraikimasoom vitakri

Cretaceous Late Herbivore

Similicaudipteryx yixianensis

Similicaudipteryx yixianensis

Cretaceous Early Omnivore

Sarcorhamphus fossilis

Sarcorhamphus fossilis

Carnivore

Overoraptor chimentoi

Overoraptor chimentoi

Cretaceous Late Carnivore

Nesillas lantzii

Nesillas lantzii

Carnivore

Nesoclopeus poecilopterus

Nesoclopeus poecilopterus

Carnivore

Similiyanornis brevipectus

Similiyanornis brevipectus

Cretaceous Early Carnivore