Natchitochia is significantly larger than most other early protocetids, except Eocetus and Pappocetus.
Pappocetus differs from all other known protocetid genera by the step-like notch on the ventral margin of the mandible below M2 and M3; from Indocetus and Rodhocetus by the deciduous double-rooted P1; from Protocetus and Babiacetus by the presence of accessory cuspules; and from Babiacetus by the unfused symphysis terminating just before P3.
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The species is named after Sir Frederick Lugard who sent one of the specimens to Andrews.