Unknown skull

Unknown skull

Observation - Unknown skull - UK and Ireland. Description: Found on the beach at high tide level. Wasn't attached to a skeleton. No other clues as to it's ID. Originally thought it was a turtle, but have been assured it's a fish species. Any ideas much appreciated! Bit stumped on this one!

Found on the beach at high tide level. Wasn't attached to a skeleton. No other clues as to it's ID. Originally thought it was a turtle, but have been assured it's a fish species. Any ideas much appreciated! Bit stumped on this one!