Final proof could only be given by a continuous growth series, as previously has been done in the case of " Rhamphorhynchus " and " Pterodactylus ".
22.
In 1839, M�nster described another specimen that he considered to belong to " Ornithocephalus " ( i . e . " Pterodactylus " ), with a distinctive long tail.
23.
"Pterodactyl " is also a common term for pterodactyloid pterosaurs, though it can also be used to refer to " Pterodactylus " specifically or ( incorrectly ) to pterosaurs in general.
24.
Unwin considered this to be a subgroup within Ctenochasmatoidea, but most analyses since have found " Pterodactylus " to be more primitive than he thought, making Euctenochasmatia the more inclusive group.
25.
The generic name is derived from the Arctic, and Greek ????????, " daktylos ", " finger ", a usual suffix in pterosaur names since " Pterodactylus ".
26.
The generic name combines a reference to Bergamo with a Greek ????????, " daktylos ", " finger ", a usual suffix in pterosaur names since " Pterodactylus ".
27.
He named it " Ornithocephalus longicaudus ", meaning " long tail ", to differentiate it from the specimens with short tails ( the true specimens of " Pterodactylus " ).
28.
The genus name refers to the Araripe Plateau and combines this with " daktylos ", Greek for " finger ", a common element in pterosaur names since " Pterodactylus ".
29.
Less specialized than contemporary, short-tailed pterodactyloid pterosaurs such as " Pterodactylus ", it had a long tail, stiffened with ligaments, which ended in a characteristic diamond-shaped vane.
30.
The position of the shoulder joint with " Ctenochasma " could not be established but the describers assumed it was higher because of the closer relation of that taxon with " Pterodactylus ".
