初始全颌鱼 | Entelognathus primordialis Exhibit label transcriptions / 展览科学展签转录 Source wording is preserved; OCR text must be checked against the retained source-page PDF. 保留原始展签措辞；OCR文字请核对随附的原始页面PDF。 === 讲解手册/珍奇柜-面孔展签三审反_0923.pdf | p.11 === Entelognathus primordialis Classification: Vertebrata Gnathostomata Placodermi Age: Late Silurian, ca. 425 million years ago Formation: Kuanti Formation, Ludfordian Stage, Ludlow Series Locality: Qujing, Yunnan, China Status: Cast | IVPP CV18620 初始全颌鱼 分类：脊椎动物 有颌类 盾皮鱼类 年代：志留纪晚期（约4.25 亿年前） 地层：罗德洛统卢德福特阶关底组 产地：云南曲靖 属性：正型模型｜IVPP CV18620 === 讲解手册/第二章 浮雕墙手册.pdf | p.12 === 初始全颌鱼 分类：脊椎动物有颌类盾皮鱼类 年代：志留纪晚期（约4.25亿年前） 地层：罗德洛统卢德福特阶关底组 产地：云南曲靖 属性：复原模型（2: 1） 初始全颌鱼是被称为“人脸古鱼”的盾皮鱼，拥 有硬骨鱼类颌骨雏形。 E n t el o gn a t hu s p r im o r di a li s Classification: Vertebrate Gnathostome Placoderm Age: Late Silurian, ca. 425 million years ago Formation: Kuanti Formation, Ludfordian Stage, Ludlow Series Locality: Qujing, Yunnan, China Status: Reconstruction mode l (2:1) Ent el og na t hus primo rdi a li s is a pl a co d e rm po pula rl y know n as t he “ h um a n - f a ce d fis h” a n d po ssesses o ste i cht hy an - like de r ma l ja w bones. === 讲解手册/证据之链 志留纪泥盆纪 鱼形柜 手册.pdf | p.20 === 初始全颌鱼 分类：脊椎动物 有颌类 盾皮鱼类 年代：志留纪晚期（约425亿年前） 地层：罗德洛统卢德福特阶关底组 产地：云南曲靖 属性：标本| IPP V18621.100 人脸古鱼 初始全颌鱼是被称为“人脸古鱼” 的盾皮鱼。其化石 发现于云南曲靖志留纪晚期地层，距今约4.25亿 年。它体长约20厘米，身体粗短圆钝，口很大，能 吞食比它更小的动物。全颌鱼的身体前半部分像 大多数盾皮鱼一样包裹在骨甲中，但它的颌骨却 与更进步的硬骨鱼类一致，具有硬骨鱼类式的膜 质边缘颌骨、前上颌骨、上颌骨和齿骨。全颌鱼化 石是介于盾皮鱼类和硬骨鱼类之间的过渡化石， 填补了有颌鱼类潢化中缺失的关键一环。 Entelognathus primordialis Classification: Vertebrata Gnathostomata Placodermi Age: Late Silurian, ca. 425 million years ago Formation: Kuanti Formation, Ludfordian Stage, Ludlow Series Locality: Qujing, Yunnan, China Status: Specimen | IVPP V18621.100 The“Human-Faced" Fish Entelognathus primordialis is a placoderm popularly known as the “human-faced fish." Its fossils were discovered in Late Silurian rocks of Qujing, Yunnan, dating to about 425 million years ago. It was about 20 cm long, with a short, stout body and a large mouth capable of swallowing smaller animals. Like most placoderms, the front half of its body was covered with dermal bone. Its jaws, however, resemble those of more derived bony fishes, bearing osteichthyan-like dermal marginal jaw bones, including the premaxilla, maxilla, and dentary. Entelognathus documents a key transitional morphology between placoderms and bony fishes and fills an important gap in the early evolution of jawed vertebrates. PLSX*