中文内容为资料集译写。每条说明所依据的摘要或正文范围。 / Chinese text is prepared for this collection. Summary evidence is identified for each entry.
Nature全文 PDF一种具有硬骨鱼式边缘颌骨的志留纪盾皮鱼
A Silurian placoderm with osteichthyan-like marginal jaw bones
Nature · 2013
依据索引收录的作者摘要概括。
Summary based on the indexed author abstract.
主要发现 Key findings
全颌鱼同时具有盾皮鱼式甲胄和前颌骨、上颌骨、齿骨等硬骨鱼式边缘颌骨；系统分析将其置于有颌类干群较冠向位置。
Entelognathus combines placoderm armour with osteichthyan-like premaxilla, maxilla and dentary; phylogenetic analysis places it toward the crownward gnathostome stem.
结论 Conclusions
现生有颌类共同祖先可能具有大块膜质骨，而其具体系统位置仍未完全解决。
The common ancestor of living jawed vertebrates may have possessed large dermal bones, although precise placoderm relationships remain unresolved.
Science仅摘要 Abstract only一种志留纪全颌盾皮鱼揭示颌的演化
A Silurian maxillate placoderm illuminates jaw evolution.
Science (New York, N.Y.) · 2016
摘要解读依据已查看的索引作者摘要；如已保存全文，可用于进一步阅读。
Summary based on the inspected indexed author abstract; archived full text, when available, is provided for further reading.
新研究物种为麒麟鱼；全颌鱼是边缘颌骨同源性的重要比较对象。
The new species is Qilinyu; Entelognathus supplies important comparative evidence for marginal jaw-bone homology.
主要发现 Key findings
第二种志留纪全颌盾皮鱼填补传统盾皮鱼颌齿板与边缘颌骨之间的形态间隙。其解剖特征支持将上颌骨、前上颌骨和齿骨与盾皮鱼颌齿板视为同一齿列中的同源结构。
A second Silurian maxillate placoderm bridges conventional placoderm gnathal plates and marginal jaw bones. Its anatomy informs a proposed homology between the maxilla, premaxilla and dentary and placoderm gnathal plates within one dental arcade.
结论 Conclusions
作者提出，颌齿板向边缘颌骨的转变在上下颌同步发生，早于下颌腹侧骨片的加入。本文新研究类群为麒麟鱼，并非全颌鱼。
The authors propose that the gnathal-to-maxillate transformation occurred in upper and lower jaws before infradentary bones were added. The main new taxon is Qilinyu, not Entelognathus.