Cearadactylus

Flying
Creatures you control with +1/+1 counters on them have hexproof.
The wingspan of Cearadactylus was by the describers estimated to have been around 4 meters (13 ft), with a weight of perhaps 15 kilograms (33 lb). Peter Wellnhofer in 1991 estimated a wingspan of 5.5 meters (18 ft).