A new owlet-nightjar (Family: Aegothelidae), Quipollornis koniberi gen. et sp. nov., has been recognized from Miocene lacustrine sediments in eastern New South Wales. It thus establishes the occurrence of the aegothelids in Australia during the Miocene. The new form shows distinct and numerous differences from the other two genera in this family, the living Aegotheles from Australia, New Guinea, and the South-west Pacific and its closely related New Zealand counterpart, Megaegotheles, now extinct.
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Rich et al. (1977) studied this question.
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