Estesia
When first described Estesia was considered to be a member of the Varanoidea, the group that contains modern day monitor lizards (i.e. lace monitor, komodo dragon, etc). This relationship was based mostly upon the similarity of the jaws as well as the teeth which were sharp and recurved (curve to face the back of the mouth). Closer analysis of the teeth however later revealed the presence of grooves than ran along the lengths of the teeth, revealing a closer relationship with members of the Helodermatoidea, which include Gila Monsters. By extension, this is a strong indicator that Estesia may have also had a ven...read more