791 Records Found

#	Taxon	Nominal Author	Taxon Status	Definitional Author	Defn Type
481	Omeisauridae	Wilson 2002			INACTIVE
482	Omnivoropterygidae	Czerkas and JI 2002			INACTIVE
483	Omnivoropterygiformes	Czerkas and Ji 2002			INACTIVE
484	Omosauria	Seeley 1887			INACTIVE
485	Omosauridae	Lydekker 1888			INACTIVE
486	Opisthocoela	Cope 1883			INACTIVE
487	Opisthocoelia	Owen 1860			INACTIVE
488	Opisthocoelicaudiinae	McIntosh 1990	Wilson and Upchurch 2003	node	ACTIVE
489	Orbitoscuta	Bakker 1986			INACTIVE
490	Ornithischia	Seeley 1888	Sereno 2005	stem	ACTIVE
491	Ornithischiformes	Cooper 1985			INACTIVE
492	Ornithodira	Gauthier 1986			INACTIVE
493	Ornithomimidae	Marsh 1890	Sereno 2005	stem	ACTIVE
494	Ornithomimiformes	Sereno 2005	Sereno 2005	stem	ACTIVE
495	Ornithomiminae	Marsh 1890			INACTIVE
496	Ornithomimoidea	Marsh 1890			INACTIVE
497	Ornithomimosauria	Barsbold 1976	Sereno 2005	stem	ACTIVE
498	Ornithopectae	Chiappe 1991			INACTIVE
499	Ornithopoda	Marsh 1881	Sereno 2005	node	ACTIVE
500	Ornithopodidae	Zittel 1895			INACTIVE
501	Ornithopodoidea	Zittel 1895			INACTIVE
502	Ornithoscelida	Huxley 1870			INACTIVE
503	Ornithoscelidae	Zittel 1887-1890			INACTIVE
504	Ornithosuchia	Huene 1908			INACTIVE
505	Ornithosuchidae	Huene 1908	Sereno 2005	stem	ACTIVE
506	Ornithosuchinae	Huene 1908			INACTIVE
507	Ornithosuchoidea	Huene 1908			INACTIVE
508	Ornithotarsidae	Cope 1871			INACTIVE
509	Ornithothoraces	Chiappe and Calvo 1994	Sereno 2005	node	ACTIVE

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