The first record of Late Jurassic crossognathiform fishes from Europe and their phylogenetic importance for teleostean phylogeny
The first record of Late Jurassic crossognathiform fishes from Europe and their phylogenetic importance for teleostean phylogeny
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DOI：
10.1002/mmng.201000005
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发表时间：
2010-01-01
期刊：
影响因子：
1.4
通讯作者：
Tischlinger, Helmut
中科院分区：
文献类型：
--
作者：
Arratia, Gloria;Tischlinger, Helmut
晚侏罗世Bavarichthys incognitus，n.一般的;一般的sp.的一种新变种。新的物种代表了欧洲最古老的crossognathiform记录，并与来自南美洲牛津的Chongichthys一起站在包括crossognathids和pachyrhizodontoids的分支的基础水平。此外，新的鱼代表了在Solnhofen石灰岩中的第一个交叉颌形的记录。新属的特征包括：眶下骨1-3独立，4 + 5融合，两块上颌骨，第2上颌骨明显短于第1上颌骨，无前背突，一系列神经外肌间骨、中枢肌间骨和胸膜上肌间骨发育良好，第1、2下骨和第1下骨部分融合，一系列轴上基底支点，第2上颌骨和第2上颌骨之间有明显的融合。以及一些与尾鳍的背侧前缘相关的细长的边缘支点。
The Late Jurassic Bavarichthys incognitus, n. gen. n. sp. from Ettling, Bavaria, is described. The new species represents the oldest record of a crossognathiform in Europe and together with Chongichthys from the Oxfordian of South America stands at the basal levels of a clade including crossognathids and pachyrhizodontoids. In addition, the new fish represents the first record of a crossognathiform in the Solnhofen Limestones. The new genus is characterized by numerous features such as the presence of infraorbitals 1-3 independent and 4 + 5 fused; two supramaxillary bones present; supramaxilla 2 considerably shorter than supramaxilla 1 and lacking an antero-dorsal process; well-developed series of epineural, epicentral and epipleural intermuscular bones; parhypural and hypurals 1 and 2 partially fused to each other; a series of epaxial basal fulcra; and a few, elongate fringing fulcra associated with the dorsal leading margin of caudal fin.