Eocoelopoma belongs to the Scombridae family of fish which include Tuna, Mackerel and Bonitos. This group is characterised for it’s streamlined body forms, and retractable fins, making them capable of generating incredible speed through the water – essential for their open-ocean predatory living.

Eocoelopoma gigas is the largest of the three Eocoelopoma species that has been described in the London Clay. It has much larger and robust, conical teeth at regular intervals on both upper and lower jaws.