The holotype individual of the ornithopod dinosaur <i>Leaellynasaura amicagraphica</i> Rich &amp; Rich, 1989 (late Early Cretaceous, Victoria, Australia)

Abstract

Doubt has been cast upon the association of the skull roof and postcranial bones, originally regarded as part of the same individual as the holotype, the left side of the skull, of Leaellynasaura amicagraphica Rich & Rich 1989. The reasons given for these doubts, the form of the prefrontal and the proportions of the supratemporal region being inconsistent with the holotype, are imprecise. The association is supported both by the morphology of the parietal and jugal, which are similar to those of Dryosaurus, and the unique sedimentological setting.