日本长崎Iki的一种新的中新世杯状鱼类，Odontobutis hayashitokuei

IF 1.3 4区地球科学 Q3 PALEONTOLOGY

Paleontological Research Pub Date : 2023-03-01 DOI:10.2517/PR210039

Y. Yabumoto, Chun-guang Zhang

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引用次数: 0

摘要

摘要在日本长崎Iki岛中中新世Chojabaru组淡水沉积物中发现了一种新的虾形鱼Odontobutis hayashitokuei sp. nov.。这个新种不同于齿蟾属的其他种，它有21个尾椎骨和一个较小的头。齿蟾(Odontobutis hayashitokuei sp. 11 .)与齿蟾(O. obscura)最相似的是其背鳍和肛鳍的位置几乎相同。这是齿齿龙属的第一个化石物种，表明齿齿龙属的起源可以追溯到中新世中期，大约15 Ma。

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A New Miocene Gobiiform Fish, Odontobutis hayashitokuei from Iki, Nagasaki, Japan

Abstract. A new gobiiform fish Odontobutis hayashitokuei sp. nov. is decribed from middle Miocene freshwater deposits of the Chojabaru Formation in Iki Island, Nagasaki, Japan based on a single specimen. This new species differs from other species of the genus Odontobutis in having 21 caudal vertebrae and a smaller head. Odontobutis hayashitokuei sp. nov. is most similar to O. obscura in having almost the same position of dorsal and anal fins. This is the first fossil species of the genus Odontobutis and suggests that the origin of the genus extends to the middle Miocene, about 15 Ma.

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来源期刊

Paleontological Research PALEONTOLOGY-

CiteScore

1.60

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Paleonotological Research (PR) is a quarterly, peer-reviewed international journal, which focuses on original contributions primarily in the area of paleontology but also covering a wide range of allied sciences. It has been published since 1997 as a successor to the former journal Transactions and Proceedings of the Palaeontological Society of Japan. The emphasis of contributions will include global and local perspectives, and contents can cover all ages (Precambrian to the Quaternary, including the present time).