All the dinosaurs that start with "M"
| Magyarosaurus | 
| Maiasaura | 
| Majungasaurus | 
| Marshosaurus | 
| Masiakasurus | 
| Massospondylus | 
| Megalosaurus | 
| Maxakalisaurus | 
| Melanosroaurus | 
| Microceratus | 
| Micropachycephalosaurus | 
| Microraptor | 
| Monolophusarurus | 
| Mononykus | 
| Mussaurus | 
| Lapparentosaurus | 
| Lambetaurus | 
| Leaellynasaura | 
| Leptoceratops | 
| Lesothosaurus | 
| Liaoceratops | 
| Ligabuesaurus | 
| Liliensternus | 
| Lophostropheus | 
| Lophorhothon | 
| Lufengosaurus | 
| Luurdusaurus | 
| Lycorhinus |