|Title:||Archaic baleen whale from the Kokoamu Greensand: earbones distinguish a new late Oligocene mysticete (Cetacea: Mysticeti) from New Zealand||Authors:||C-H TSAI
C-H TSAI et al.
|Issue Date:||2016||Journal Volume:||46||Journal Issue:||2||Start page/Pages:||117-138||Source:||Journal of the Royal Society of New Zealand||Abstract:||
†Whakakai waipata is a new genus and species of Mysticeti from the Kokoamu Greensand (Chattian, Late Oligocene, 25–27 Ma) of ‘The Earthquakes’, North Otago. The holotype of †Whakakai waipata is a partial skull, periotics, tympanic bulla, vertebrae and scapula. The earbone morphology of †Whakakai waipata shows a unique combination of diagnostic features including: massive periotic; flange of posterior process and caudal tympanic process flooring stapedial muscle fossa; and an elongated stylomastoid fossa that invades the robust posterior process of the periotic. The tympanoperiotic features in †Whakakai waipata suggest a different acoustic niche from other Oligocene mysticetes, and by inference different feeding habits and habitat.
|Appears in Collections:||生命科學系|
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