Source / 来源: 讲解手册/珍奇柜-活化石展签五审_0923.pdf Page / 页码: 4 Material / 材料类型: exhibit_context Text extraction / 提取方式: native Source transcription; wording is retained as supplied. OCR may contain recognition errors; consult the PDF/image. 来源转录;保留原展签措辞。OCR可能包含识别误差,请核对PDF或图像。 中华金龙鱼 5600万年前的古代龙鱼 中华金龙鱼是发现于中国早始新世地 层的骨舌鱼类化石,属于骨舌鱼目骨舌 鱼科。产自湖南湘乡和湖北松滋的化石 保存精美,为研究金龙鱼类的演化历史 提供了重要证据。研究表明,硬骨舌鱼 属与南美骨舌鱼属的分化时间可追溯 至约5600万年前。这一发现不仅将现 生硬骨舌鱼属的演化历史延伸至新生 代早期,也为理解骨舌鱼类跨越不同大 陆的分布格局及其生物地理历史提供 了重要线索。 Scleropages sinensis An Ancient Arowana from 56 Million Years Ago Scleropages sinensis is a fossil bony-tongue fish discovered from the Early Eocene deposits of China and belongs to the family Osteoglossidae within the order Osteoglossiformes. The exceptionally preserved fossils from Xiangxiang, Hunan Province, and Songzi, Hubei Province, provide important evidence for understanding the evolutionary history of arowanas. Research indicates that the divergence between the genus Scleropages and the South American osteoglossid genus Osteoglossum can be traced back to approximately 56 million years ago. This discovery extends the evolutionary history of living arowanas into the Early Cenozoic and provides important clues for understanding the intercontinental distribution patterns and biogeographic history of bony-tongue fishes.