Species Classification: ‭ ‬Climatiidae.

In Depth        As a‭ ‘‬spiny shark‭’ ‬Climatius was not a true shark but was still related to them.‭ ‬Climatius was probably an open water hunter of smaller fish,‭ ‬and two clues to indicate this are both the strongly developed caudal fin and the large pectoral fins.‭ ‬As the caudal fin‭ (‬loosely dubbed the tail‭) ‬propelled … Read more

In Depth        Parexus is a genus of acanthodian‭ (‬often dubbed spiny shark‭) ‬fish that lived in the waters of what is now Scotland during the early Devonian.‭ ‬Acanthodian fish are noted for their large spines which may have initially developed for defence against the mouths and throats of larger predators.‭ ‬However,‭ ‬some of these spines … Read more