Macrogryphosaurus Macrogryphosaurus

"big enigmatic lizard"

You 1.8 m (5.9 ft) tall
Macrogryphosaurus 6 m (19.7 ft) long
4 people holding hands
Length
6 m (19.7 ft)
Period
Cretaceous (145–66 Mya)
Place
Argentina
Food
Herbivore
Clade
Dinosauria

Macrogryphosaurus (meaning “big enigmatic lizard”) is a genus of elasmarian dinosaur from the Coniacian age Upper Cretaceous Sierra Barrosa Formation (Neuquén Group) of Argentina in Patagonia. It was described by Jorge Calvo and colleagues in 2007, with M. gondwanicus as the type and only species.

What we know

  • Named by Calvo et al. 2007.
  • Body length estimated at about 6 m.
  • Fossils found in Argentina.