Pulling Through - Possible Aquatic Locomotion in Spinosauridae

By: Thomas R. Diehl

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eBook | 16 September 2014

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The enlarged thumb claw seen in most spinosaurids has traditionally been interpreted in many ways, the most common current interpretation seemingly being that of a fishing instrument. The author of this text doubts this is a feasible use given the claw's size and shape. Instead, he proposes the idea of the claw being a locomotive organ in shallow water, its bearers using it by anchoring the claws in the ground and then pulling themselves forward with their unusually developed arms.