Marino

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1mo
Art illustration - Aquatic animals - Pharyngolepis: is an extinct genus of primitive jawless fish that lived in the Silurian period. This is an anaspid, means an extinct small freshwater jawless fish usually having a heterocercal tail and an armored head; of the Silurian and Devonian.
Fish fossils reveal how tails evolved, Penn professor finds
Aetheretmon (facing right) an early ray-finned fish swims in a 348 million year old river in Foulden, Scotland by John Megahan
Sharks that hunted near Antarctica millions of years ago recorded Earth’s climate history in their teeth