Dinosaures classés par ordre alphabétique
50 - 
- Rocasaurus muniozi -
- Riodevasaurus sp. [nomen nudum] -
- Rinconsaurus caudamirus -
- Ricardoestesia isosceles -
- Revueltosaurus hunti [nomen ex dissertatione → Krzyzanowskisaurus hunti (2005)] -
- Rebbachisaurus tessonei [nomen dubium] -
- Raptorex kriegsteini - Sereno et al.
- Rapetosaurus krausei -
- Rapaxavis pani - Morschhauser et al.
- Rajasaurus narmadensis -
- Rahiolisaurus gujaratensis - Novas et al.
- Pyroraptor olympius -
- Pycnonemosaurus nevesi - KELLNER A.W.A. & CAMPOS D.A.
- Pukyongosaurus millenniumi -
- Puertasaurus reuili - F.E.NOVAS et al.
- Psittacosaurus ordosensis -
- Psittacosaurus neimongoliensis -
- Psittacosaurus mazongshanensis -
- Psittacosaurus major - SERENO P.C. et al.
- Psittacosaurus lujiatunensis - ZHOU C.-F. et al.
- Psittacosaurus gobiensis - Sereno et al.
- Protohadros byrdi -
- Protoceratops hellenikorhinus -
- Protarchaeopteryx robusta -
- Pradhania gracilis - KUTTY T.S. et al.
- Polacanthus rudgwickensis -
- Poekilopleuron valesdunensis [nomen ex dissertatione → Dubreuillosaurus valesdunensis (2005)] - ALLAIN Ronan
- Pneumatoraptor fodori - Ösi et al.
- Platyceratops tatarinovi -
- Planicoxa venenica -
- Phuwiangosaurus sirindhornae -
- Petrobrasaurus [nomen nudum] -
- Penelopognathus weishampeli - Pascal GODEFROIT, Hong LI & Chang-Yong SHANG
- Pelecanimimus polyodon -
- Pekinosaurus olseni -
- Pedopenna daohugouensis - Xing Xu & Fucheng Zhang
- Pawpawsaurus campbelli -
- Parvicursor remotus -
- Paralititan stromeri -
- Pantydraco caducus - GALTON P.M., YATES A.M. & KERMACK D.
- Panphagia protos - Martínez & Alcober
- Paluxysaurus jonesi - ROSE Peter J.
- Ozraptor subotaii -
- Owenodon hoggii - Galton
- Othnielosaurus consors - GALTON P.M.
- Oryctodromeus cubicularis - VARRICCHIO D.J., MARTIN A.J., KATSURA Y.