The Daptocephalus Assemblage Zone was first named after the dicynodont Daptocephlaus leoniceps by James Kitching due to the high prevalence, and localized appearance, of this species.
The Daptocephalus Assemblage Zone was initially named after the dicynodont *Daptocephlaus leoniceps* by James Kitching due to its high occurrence and localized presence in that area.