志留纪-泥盆纪期间早期有颌类的系统发育与地史分布 (IMAGE) Science China Press Caption 将空棘鱼类排除在外的扇鳍鱼类冠群主要包括肺鱼类和四足动物,中国肉鳍鱼类的化石显示该类群的起源与快速分化主要发生在晚志留世-早泥盆世洛赫考夫期期间。肺鱼形类杨氏鱼(Youngolepis)是扇鳍鱼类冠群及肉鳍鱼类冠群最古老的代表,而斑鳞鱼(Psarolepis)、鬼鱼(Guiyu)则代表肉鳍鱼类干群的最早化石记录。 Credit ©《中国科学》杂志社 Usage Restrictions Use with credit. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.