Elasmaria

† Elasmaria is a clade of small to medium iguanodontian ornithopod dinosaurs restricted to Gondwanan landmasses during the Cretaceous, with members in Argentina and Antarctica. Characterised by thin, plate-like ilia, these biped herbivores browsed on low vegetation in the floodplains and forests of southern Gondwana. Their isolation from northern ornithopods led to distinctive anatomical features. Elasmarian diversity in Patagonia documents the parallel evolution of ornithopod radiations on sepa