Chanoides, a marine Eocene otophysan fish (Teleostei: Ostariophysi)
Chanoides, a marine Eocene otophysan fish (Teleostei: Ostariophysi)
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Chanoides，一种海洋始新世耳鱼（Teleostei：Ostariophy）
DOI：
10.1080/02724634.1984.10012021
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发表时间：
1984
影响因子：
1.4
通讯作者：
C. Patterson
中科院分区：
文献类型：
--
作者：
C. Patterson
ABSTRACT Chanoides is a monotypic genus from the marine Eocene of Monte Bolca, Italy. It is the first fossil ostariophysan in which a Weberian apparatus is known in any detail. The Weberian apparatus of Chanoides includes a unique type of tripus, and is more generalized than that of Recent otophysans in several ways. Chanoides has other primitive features, unknown in otophysans, such as a basipterygoid process, a large supramaxilla, and a free second ural centrum. The jaws resemble those of Recent cypriniforms in having a median “kinethmoid,” and in having teeth confined to the fifth ceratobranchial. But the jaws of Chanoides are unique in other ways, and it is concluded that the kinethmoid is not homologous with that of cypriniforms. Chanoides is placed as the sister-group of all Recent otophysans (cypriniforms, characiforms, siluriforms). Comments on other generalized fossil otophysans are included.
