Pterodactyloidea Pterodactyloidea Pterodactyloidea (derived from the Greek words "πτερόν" ("pterón", for usual "ptéryx") "wing", and "δάκτυλος" ("dáctylos") "finger" meaning "winged finger", "wing-finger" or "finger-wing") is one of the two traditional suborders of pterosaurs ("wing lizards"), and contains the most derived members of this group of flying reptiles. They appeared during the middle Jurassic Period, and differ from the basal (though paraphyletic) rhamphorhynchoids by their short tails and long wing metacarpals (hand bones). The most advanced forms also lack teeth, and by the late Cretaceous, all known pterodactyloids were toothless. Many species had well developed crests on the skull, a form of
Jason (given name) Jacinda, meaning Hyacinth. Jason (given name) Jason is a common given name for a male. It comes from Greek (), meaning "healer", from the verb (), "heal", "cure", cognate with , "Iasō", the goddess of healing and , "iatros", "healer", "physician". Forms of related words have been attested in Greek from as far back as Mycenaen (in Linear B) and Arcadocypriot (in the Cypriot syllabary) Greek: , "i-ja-te" and "i-ja-te-ra-ne", respectively, both regarded as standing for inflected forms of , "healer". The name was borne in Greek mythology by Jason, the great Thessalian hero who led the Argonauts in the