Source / 来源: 讲解手册/珍奇柜-活化石展签五审_0923.pdf Page / 页码: 39 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。 许氏创孔海百合 花朵形态的棘皮动物 海百合是一类古老的海生棘皮动物, 早在约4.8亿年前的奥陶纪就已出现, 并在古生代海洋中广泛繁盛。许多古代 海百合具有细长的茎,顶端连接杯状的 萼和向外展开的羽状腕,整体形态宛如 盛开的花朵,因此得名“海百合”。 Traumatocrinus hsui A Flower-Shaped Echinoderm Crinoids are an ancient group of marine echinoderms that first appeared during the Ordovician, approximately 480 million years ago, and flourished widely in Paleozoic seas. Many ancient crinoids possessed slender stalks connected to cup-shaped calyces, with feather-like arms extending outward from the top. Their overall appearance resembled blooming flowers, giving rise to the name “sea lilies.”