7–3 metres

though the exact cause remains debated

with other basal forms such as Sclerocormus parviceps found in the same deposits

ancho 25 mm

en un intervalo marcado por grandes cambios climáticos

Akainacephalus johnsoni Australodelphis 7–3 metresAkainacephalus johnsoni was an ankylosaurid dinosaur from the Late Cretaceous of North America, known from remains recovered from the Kaiparowits Formation in southern Utah, within the ancient island continent of Laramidia. Formally described in 2018 by Wiersma and Randall Irmis, this taxon represents one of the most complete ankylosaurids known from southern Laramidia and provides key information on the regional diversity of armoured dinosaurs during