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首次记述了亚洲北大陆的犁齿鱼化石。标本采自湖北松滋县黑口洋溪组。新的标本在个体较小、最大体高位于臀鳍起点处、背鳍起点靠后、背鳍具有 1 2根鳍条、尾上骨缺失、第一末端尾椎 (U1 + 2 )上只有一根神经棘等方面显著不同于犁齿鱼属的三个已知种 (P .encaustus、P .testis和P .queenslandicus) ,代表了一新种 (松滋犁齿鱼Phareodussongziensissp .nov.)。P .encaustus和P .testis幼体的体形较长 ,为纺锤形 ,但到成体后 ,体形明显加高。P .encaustus的体长可达 5 4cm ,P .testis的可达 30cm ,而松滋犁齿鱼的体长可能只有 1 2cm ,和上述两个种的幼体差不多。但是 ,松滋犁齿鱼的体形较高 ,其轮廓和北美两个种的成体很相似 ,因此 ,虽然松滋犁齿鱼的体形较小 ,但很可能代表了成年个体。松滋犁齿鱼的体形和东南亚的Musperiaradiata(可能为Phareodus的同物异名 )比较相似。Musperia的背鳍较大、背鳍鳍条为 2 3根、背鳍起点和臀鳍起点相对、背鳍第一鳍条支持骨和臀鳍第一鳍条支持骨与同一个脊椎相连、第一末端尾椎上有两个神经棘 ,这些特征说明 ,Musperia和松滋犁齿鱼不同 ,而和北美的Phareodus的关系可能更近。
For the first time, the cicada tooth fossils of the North Asian continent are described. Specimens were collected from Yangxi Formation, Heijiangkou, Songzi County, Hubei Province. The new specimen in the individual smaller, the maximum height at the beginning of the anal fin, dorsal fin starting point behind the dorsal fin with 12 rays, missing the tail bone, the first tail caudal (U1 +2) on only one nerve spines and so on Three distinct species (P. Encaustus, P. Testis, and P. Queenslandicus) that are significantly different from the genus Larnis represent a new species (Phareodussongziensissp. Nov.). P. Encaustus and P. Testis larvae longer body shape, spindle-shaped, but to the body, significantly higher body shape. P. Encaustus body length of up to 5 4cm, P .testis up to 30cm, while Song Zi Luli fish body length may be only 12cm, and the two species of larvae similar. However, the shape of the pine-nosed lizard is higher and its outline resembles that of the two species in North America. Therefore, although the shape of the pine-nosed lizard is smaller, it probably represents an adult individual. The shape of the loose-tailed lizardfish is similar to that of Musperiaradiata in Southeast Asia (probably synonymous with Phareodus). Musperia large dorsal fin, dorsal fin rays of 23, the starting point of dorsal fin and anal fin relative starting point, the first fin of the dorsal fin support the bones and anal fin the first fin support bone connected to the same vertebra, the first tail on the caudal Aneurias, these features suggest that Musperia is not the same as Pinelillas, but may be closer to Phareodus in North America.