Kalmar "Dinornithidae" tana nufin dangin tsuntsayen da ba su tashi ba da aka sani da moa, waɗanda suka kasance a New Zealand. Wannan iyali ya ƙunshi nau'o'in nau'o'in manyan tsuntsaye masu tsire-tsire waɗanda suka rayu a yankin tsawon dubban shekaru kafin su bace a kusan shekaru 500 da suka wuce. Kalmar "Dinornithidae" ta samo asali ne daga kalmomin Helenanci "deinos," ma'anar "mummunan" ko "mai girma mai ban tsoro," da "ornis," ma'ana "tsuntsaye."