With an estimated wingspan of fifty centimetres ( 20 inches ) and a nine centimetre long body ( skull included ) , its weight was limited : in 2008 Mark Paul Witton estimated a mass of forty grammes for a specimen with a 35 centimetre wingspan .
With an estimated wingspan of fifty centimetres ( 20 inches ) and a nine centimetre long body ( skull included ) , its weight was limited : forty grammes for a specimen with a 35 centimetre wingspan .