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Otekaikea
''Otekaikea'' is an extinct genus of toothed whale closely related to ''Waipatia''. It is known from the late Oligocene (Chattian) of New Zealand.
==Description==
''Otekaikea'' is a medium-sized odontocete similar to ''Waipatia'' in the following characters: maxilla and occipital partly separated by parietal; flat dorsal surface of periotic; long posterior process of the periotic; and poorly developed ventromedial keel of the bulla. Differences from other archaic odontocetes include: broad dished face; elevated nodular subrhomboidal nasals and elevated frontals; smooth-surfaced premaxillary sac fossae without prominent premaxillary sulci developed posteriorly; premaxillae strongly bifurcated posteriorly, associated with bilateral posterior accessory foramina and elevated crests on the maxillae; periotic with long slender parallel-sided posterior process, and sharp apex of anterior process.〔Tanaka Y, Fordyce RE (2014) Fossil Dolphin Otekaikea marplesi (Latest Oligocene, New Zealand) Expands the Morphological and Taxonomic Diversity of Oligocene Cetaceans. PLoS ONE 9(9): e107972. doi:10.1371/journal.pone.0107972〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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