Dinosaurs That Start With M
Explore a complete list of over 71 dinosaurs that start with the letter M.
Each dinosaur listed has a dedicated page with information on classification, diet, size, fossil evidence, geographic distribution, and maps of known fossil locations, where available. Pages may also include size comparison charts, fossil representations, and in-depth descriptions based on current scientific research.
The amount of information varies by species, depending on the completeness of fossil discoveries.
Diet: Omnivoreâ€?Size: Roughly about â€1 meter long.Time Period: Campanian of the Cretaceous.
Diet: Herbivore.Size: Holotype skull roughly reconstructed to have
been about one meter long.†‬Total body size uncertain.Time Period: Campanian of the Cretaceous.
Diet: Herbivore.Size: About†‬3.5†‬meters long.Time Period: Norian of the Triassic.
Diet: Herbivore.Size: Estimates range between†‬10†‬and†‬12â€
‬meters long,†‬but these figures are highly speculative since only
remains of the tail are known.Time Period: Aptian to Barremian of the Cretaceous.
Diet: Herbivore.Size: Roughly estimated to be about†‬9-10†‬meters
long.Time Period: Hauterivian/Barremian of the Cretaceous.
Diet: Herbivore.Size: Estimated†‬12.5 meters†‬long.Time Period: Campanian of the Cretaceous.
Diet: Herbivore.Size: Uncertain due to lack of remains.Time Period: Campanian of the Cretaceous.
Diet: Carnivore.Size: Roughly estimated to be around†‬4†‬meters
long,†‬possibly slightly bigger.Time Period: Mid Jurassic.
Diet: Herbivore.Size: 6†‬meters long.Time Period: Maastrichtian of the Cretaceous.
Diet: Carnivore.Size: Estimated about†‬70†‬centimetres long.Time Period: Campanian of the Cretaceous.
Diet: Herbivore.Size: Uncertain due to lack of remains.Time Period: Santonian of the Cretaceous.â€
Diet: Herbivore.Size: Around†‬9†‬meters long.Time Period: Late Campanian of the Cretaceous.
Diet: Carnivore.Size: Uncertain due to fragmentary nature of
remains,†‬but holotype roughly estimated to have been between nine and
ten meters long.Time Period: Maastrichtian of the Cretaceous.
Diet: Carnivore.Size: 6-7†‬meters long,†‬some fragmentary remains
suggest†‬8†‬meters long.Time Period: Maastrichtian of the Cretaceous.
Diet: Herbivore.Size: Unavailable.Time Period: Turonian/Coniacian of the Cretaceous.
Diet: Herbivore.Size: Approximately†‬16†‬meters long.Time Period: Aptian of the Cretaceous.
Diet: Herbivore.Size: Unknown but possibly about 6 meters long.Time Period: Campanian of the Cretaceous.
Diet: Herbivore.Size: Up to 35 meters long for the largest species M.
sinocanadorum.Time Period: Oxfordian to Tithonian of the Jurassic.
Diet: Herbivore.Size: Unavailable.Time Period: Late Cretaceous.
Diet: Omnivore�Size: Roughly about†‬60-75†‬centimetres long.Time Period: Aalenian–Early Bathonian of the
Jurassic.
Diet: Herbivore.Size: Holotype individual estimated somewhere aboutâ€
‬8-10†‬meters long.†‬Full adult size unknown.Time Period: Campanian of the Cretaceous.
Diet: Herbivore.Size: About†‬7†‬meters long.Time Period: Barremian-Aptian of the Cretaceous.
Diet: Herbivore.Size: Highly speculative given that the genus is
based upon partial remains which have now become lost.†‬Older
estimates from the time when Maraapunisaurus
fossils were attributed to
the Amphicoelias genus and reconstructed as a
diplodocid suggestedâ€
‬anywhere between†‬40†‬and†‬60†‬meters long.†‬Later reconstruction
of Maraapunisaurus as a rebbachisaurid sauropod
dinosaur suggest a
little over†‬30†‬meters long.†‬Original vertebrae had a preserved
height of†‬1.5†‬meters,†‬possibly being as much as†‬2.7†‬meters
high when complete.Time Period: Late Jurassic.
Diet: Herbivore.Size: Uncertain due to lack of remains.Time Period: Maastrichtian of the Cretaceous.
Diet: Carnivore.Size: Estimated bertween†‬5†‬and†‬6†‬meters
long,†‬Skull†‬0.6†‬meters long.Time Period: Kimmeridgian of the Jurassic.
