梦幻鬼鱼 | Guiyu oneiros
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=== 讲解手册/证据之链 志留纪泥盆纪 鱼形柜 手册.pdf | p.13 ===
梦幻鬼鱼
分类：脊椎动物 硬骨鱼类 肉鳍鱼类
年代：志留纪晚期（约4.23亿年前）
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 CV15541
最古老的肉鳍鱼
梦幻鬼鱼是生活在距今约4.23亿年前志留纪晚期
的原始肉鳍鱼类，化石发现于中国云南曲靖。它体长
约30厘米，身体呈流线型，牙齿锋利，颅骨与肉鳍鱼
类相似，颊部接近辐鳍鱼类，胸鳍棘刺类似盾皮鱼类
、棘鱼类和软骨鱼类。作 潇湘脊椎动物群代表性化
石，梦幻鬼鱼化石保存近乎完整，进一步填补了硬骨
鱼类和其他有颌类之间的形态学鸿沟。
Guiyu oneiros
Classification: Vertebrata Osteichthyes Sarcopterygii
Age: Late Silurian, ca. 423 million years ago
Formation: Kuanti Formation, Ludfordian Stage, Ludlow Series
Locality: Qujng, Yunnan, China
Status: Cast | MPP CV15541
The Earliest Known Sarcopterygian
Guiyu oneiros is an early sarcopterygian that lived about 423 million
years ago in the Late Silurian and was discovered in Qujing, Yunnan，
China. It was about 30 cm long, with a streamlined body and sharp
teeth. Its skull resembles those of sarcopterygians, whereas its cheek
region is more actinopterygian-like, and the spine in front of the
pectoral fin resembles those seen in placoderms, acanthodians, and
chondrichthyans. As a representative fossil of the Xiaoxiang
Vertebrate Fauna, Guiyu oneiro is preserved nearly complete and
helps bridge the morphological gap between osteichthyans and
other early jawed vertebrates.
PLSX*