Minmi paravertebra (Molnar 1960, early Cretaceous, 3m) was recovered as the most basal anklylosaur by Thompson et al. 2011. Derived from a sister to Scelidosaurus, Minmi was close to al other ankylosaurs and nodosaurs.

Overall smaller than most ankylosaurs, the skull was larger, the torso shorter and the legs relatively longer. Distinct from Scelidosaurus the torso of Minmi was wider than tall. The pubis was a vestige. The limbs were all subequal in length, the ilia were largely horizontal, acting like armor plates, the armor plates were larger, no temporal fenestra appear on the skull.

Gut contents consist of fragments of fibrous or vascular plant tissue, fruiting bodies, spherical seeds, and vesicular tissue (possibly from fern sporangia). The fragments are uniform in size and cut cleanly, indicating oral processing supported by inset teeth probably within cheeks.

Kunbarrasaurus ieversi (Leahy et al. 2015) is the new name for the skull above, formerly Minmi sp.

Liaoningsaurus paradoxus (IVPP V12560; Xu et al. 2001; 24cm in length) was considered an odd sort of baby ankylosaur. Several are known. Note the splayed limbs and reduced armor.