It can be represented by the hand of primates, the lower front limb of hoofed animals or the forepaw and is represented in the wing of birds, bats and prehistoric flying reptiles (pterosaurs), the flipper of marine mammals and the 'paddle' of extinct marine reptiles, such as plesiosaurs and ichthyosaurs.
This can be represented as a hand, lower front limb, or forepaw; it is also found in the wings of birds, bats, and prehistoric flying reptiles (pterosaurs), flippers of marine mammals, and 'paddles' of extinct marine reptiles like plesiosaurs and ichthyosaurs.