Belongs within: Mammalia. The Eutriconodonta are a group of mammals known from the Jurassic and Cretaceous, characterised by triconodont molars with three laterally compressed cusps in a straight alignment (Luo et al. 2007). Synapomorphies (from Krause et al. 2014): Dens not fused to axis; lumbar ribs not fused to vertebrae; tarsal spur absent; premaxilla with… Continue reading Eutriconodonta