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A new Miocene sirenian from Kutch, India

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Thewissen J. G. M., Bajpai S.

Acta Palaeontologica Polonica

2009

tom 54

nr 1

7-13

We report a new Miocene sirenian from District Kutch, State of Gujarat, India: Domingia sodhae gen. et sp. nov. The new species is a dugongine dugongid with flattened tusk−like upper incisors. Like some other Miocene dugongids, Domningia is large and has complex, bilophodont molars and three−rooted premolars, which are strongly worn. The rostrum is downturned significantly, similar to modern dugongs, and indicative of a specialized feeding mode. Phylogenetically, it is closely related to Dioplotherium, Rytiodus, Corystosiren, and Bharatisiren. Among these, Domningia is most similar to Bharatisiren indica and Dioplotherium manigaulti, in that all three taxa retain multi−rooted premolars. Similar to Bharatisiren, the nasal process of the premaxilla is long. Bharatisiren and Domningia are part of a late Oligocene and early Miocene radiation of dugongines in South Asia.

Ograniczanie wyników

1 Acta Palaeontologica Polonica

1 Bajpai S.

1 Thewissen J. G. M.

1 2009

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A new Miocene sirenian from Kutch, India