The possible species "Coloborhynchus capito" is the largest toothed pterosaur known. A specimen from the Cambridge Greensand has a very large upper jaw tip which displays the typical teeth which distinguish "C. capito" from other species. The jaw tip is nearly 10 cm tall and 5.6 cm wide, with teeth up to 1.3 cm in base diameter. If the proportions of this specimen was the same as other known species of "Coloborhycnhus", the total skull length could have been up to 75 cm, leading to an estimated wingspan of .