A New Chanidae (Ostariophysii: Gonorynchiformes) from the Cretaceous of Brazil with Affinities to Laurasian Gonorynchiforms from Spain
A New Chanidae (Ostariophysii: Gonorynchiformes) from the Cretaceous of Brazil with Affinities to Laurasian Gonorynchiforms from Spain
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DOI：
10.1371/journal.pone.0037247
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发表时间：
2012-05-21
期刊：
影响因子：
3.7
通讯作者：
Brito, Paulo M.
中科院分区：
文献类型：
--
作者：
Amaral, Cesar R. L.;Brito, Paulo M.
本文描述了长鳍鱼Nanaichthys longipinnus nov. gen.和sp.的一个新属，该属具有几个特征，如眶蝶骨和基蝶骨缺失，下颌方关节前移，上神经外侧扩张，鳃盖前肢间呈锐角，鳃盖前肢间角扩张，和弯曲的上颌关节突它的发生和Chanidae内部的关系加强了地中海特提斯在Aptian/Albian高地之前对冈瓦纳主要裂谷系统的影响。
Based on specimens originally referred to as "Dastilbe minor", a nomem-nudum, we describe a new genus of Chanidae dagger Nanaichthys longipinnus nov. gen. and sp. which exhibits several diagnostic characters such as the absence of orbitosphenoid and basisphenoid, anteriorly displaced quadrate-mandibular articulation, laterally expanded supraneurals, an acute angle between the preopercular limbs, expansion at the angle between the preopercular limbs, and a curved maxillary articular process. Its occurrence and supposed relationship within the Chanidae reinforce the influence of the Mediterranean Tethys over the Gondwanan main rift system prior to the Aptian/Albian highstands.