Machairasaurus leptonychus

Machairoceratops cronusi

Macrocollum itaquii

Macrogryphosaurus gondwanicus

Macrurosaurus semnus

Magnamanus soriaensis

Magnapaulia laticaudus

Magnosaurus nethercombensis

Magyarosaurus dacus

Mahakala omnogovae

Mahuidacursor lipanglef

Maiasaura peeblesorum

Maip macrothorax

Majungasaurus crenatissimus

Malarguesaurus florenciae

Malawisaurus dixeyi

Malefica deckerti

Mamenchisaurus constructus

Manidens condorensis

Mansourasaurus shahinae

Mantellisaurus atherfieldensis

Mapusaurus roseae

Maraapunisaurus fragillimus

Marisaurus jeffi

Marshosaurus bicentesimus

Martharaptor greenriverensis

Masiakasaurus knopfleri

Massospondylus carinatus

Matheronodon provincialis

Maxakalisaurus topai

Mbiresaurus raathi

Medusaceratops lokii

Megalosaurus bucklandii

Megaraptor namunhuaiquii

Mei long

Melanorosaurus readi

Mendozasaurus neguyelap

Menefeeceratops sealeyi

Menucocelsior arriagadai

Mercuriceratops gemini

Meroktenos thabanensis

Metriacanthosaurus parkeri

Microceratus gobiensis

Microhadrosaurus nanshiungensis

Micropachycephalosaurus hongtuyanensis

Microraptor gui

Microvenator celer

Mierasaurus bobyoungi

Migmanychion laiyang

Minimocursor phunoiensis

Minmi paravertebrata

Minotaurasaurus ramachandrani

Minqaria bata

Miragaia longicollum

Mirischia asymmetrica

Mnyamawamtuka moyowamkia

Moabosaurus utahensis

Mochlodon suessi

Mojoceratops perifania

Mongolosaurus haplodon

Mongolostegus exspectabilis

Monkonosaurus lawulacus

Monolophosaurus jiangi

Mononykus olecranus

Montanoceratops cerorhynchus

Morelladon beltrani

Moros intrepidus

Morrosaurus antarcticus

Mosaiceratops azumai

Murusraptor barrosaensis

Musankwa sanyatiensis

Mussaurus patagonicus

Muttaburrasaurus langdoni

Muyelensaurus pecheni

Mymoorapelta maysi