Morrosaurus is an extinct genus of herbivorous elasmarian dinosaur that lived in the late Cretaceous in Antarctica. The only known species is the type Morrosaurus antarcticus.
Morrosaurus
Size compared to a human.
Metatarsals of ornithopods from above; these bones in Morrosaurus (C) and other elasmarians (A, B, D, E, P) demonstrate their developed running abilities and have been studied to evaluate their growth rates
Proximity of the southern continents when Morrosaurus lived allowed faunal interchange
Elasmaria is a clade of ornithopods known from Cretaceous deposits in South America, Antarctica, and Australia that contains many bipedal ornithopods that were previously considered "hypsilophodonts".
Elasmaria