(有人叫"圖拉螈")
Tulerpeton (約3.65億年前)
四肢已經有上下2條骨,上手臂 + 下手臂,好似人咁
Tulerpeton is considered
one of the first true tetrapods to have arisen. It is known from a fragmented skull, the left side of the pectoral girdle, and the entire right forelimb and right hindlimb along with a few belly scales. This species is
differentiated from the less derived "aquatic tetrapods" (such as Acanthostega and Ichthyostega) by a strengthened limb structure. These limbs consist of 6 toes and fingers. Additionally, its limbs appear to have evolved for powerful paddling rather than walking.
可以話四肢已強化,成為真正四肢動物,但行得唔叻
Even though Tulerpeton breathed air, it lived mainly in shallow marine water. The Andreyevka fossil bed where it was discovered was at least 200 km from the nearest landmass during this era.
真係呼吸空氣,但住係水
Because the bones of the neck and the pectoral girdle were disconnected,
Tulerpeton could lift its head. Therefore, in shallow water, it had a considerable advantage over the other animals whose heads only moved side to side.
抬頭呼吸
Tulerpeton is one of the early transition tetrapods – a marine animal capable of living on land. The separation of the pectoral-shoulder girdle from the head allowed the head to move up and down, and the strengthening of the legs and arms allowed the early tetrapods to propel themselves on land.
可以抬頭呼吸 + 上陸地