Acanthostega



The Acanthostega is the oldest known tetrapod. Is Ichthyostega predecessor and successor of Tiktaalik. It is of the first vertebrates that poked their heads out of the water to see what had out and hunt insects and arthropods near water. Remember that a tetrapod is one animal that has four legs, and who uses them.

It is the oldest known tetrapod. It was the first animal that had the bone structure needed to walk out of the water. A structure, perfected, was the basis for all other tetrapods (amphibians, reptiles, mammals and birds).

How was this prehistoric animal?


Similar to Ichthyostega, no more than a meter in length and its legs were 8 fingers. And like Tiktaalik, the Acanthostega had a disembodied skull that could move while the body ... Unlike fish.

Like early amphibians, the first ones out of the water, his breathing was a simple combination of lungs and gills.

This evolution firstborn old, lived in the shallow waters of the Devonian, 370-360 million years ago.

A curious animal right?

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