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1 April 2012 Apsopelix miyazakii, a New Species of Crossognathid Fish (Teleostei) from the Upper Cretaceous of Hokkaido, Japan
Yoshitaka Yabumoto, Yoshinori Hikida, Takanobu Nishino
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Abstract

Apsopelix miyazakii sp. nov. is described on the basis of a single specimen from the Upper Cretaceous (Turonian), Nakagawa Town, Hokkaido, Japan. This new species differs from the other species of the genus Apsopelix by the existence of a median frontal convexity near the posterior end of the frontal bones, the articulation of the lower jaw behind the middle of the orbit and the antorbital contacting with the first infraorbital at the ventral half of its posterior margin. This is the first record of the genus Apsopelix and the family Crossognathidae from the eastern part of the Tethys.

© by the Palaeontological Society of Japan
Yoshitaka Yabumoto, Yoshinori Hikida, and Takanobu Nishino "Apsopelix miyazakii, a New Species of Crossognathid Fish (Teleostei) from the Upper Cretaceous of Hokkaido, Japan," Paleontological Research 16(1), 37-46, (1 April 2012). https://doi.org/10.2517/1342-8144-16.1.037
Received: 25 March 2011; Accepted: 1 September 2011; Published: 1 April 2012
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KEYWORDS
Apsopelix miyazakii
Crossognathidae
eastern Tethys
Hokkaido
Late Cretaceous
new species
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