In primitive forms, such as "Yunnanolepis", the limbs were thick and short, while in advanced forms, such as "Bothriolepis", the limbs were long and had elbow-like joints.
In primitive forms, such as "Yunnanolepis", the limbs were thick and short, while in advanced forms, such as "Bothriolepis", the limbs were long and had elbow-like joints.
In primitive forms, such as "Yunnanolepis", the limbs were thick and short, while in advanced forms, such as "Bothriolepis", the limbs were long and had elbow-like joints.
简化: In primitive forms, such as "Yunnanolepis", the limbs were thick and short, while in advanced forms, such as "Bothriolepis", the limbs were long and had elbow-like joints. 输出: