 Documentation of historical finds and the excavation of "Ariston", the most complete specimen ever from the Star Pit near Whittlesey, Peterborough, support Woodward's figures of between 9 and 10 metres (29.5 and 33 feet).With "Ariston" the pectoral fins are 1005 millimetres (39.6 inches) apart, indicating a narrow body of no excessive size, even though it was initially thought to have been 22 metres (72 feet) long.In 2007 Liston stated that most specimens indicated lengths between 7 and 12 metres (23 and 39 feet).