Pterygotous refers to something that is provided with or characterized by fins or appendages resembling fins, typically in a plant or in some invertebrate animals.
I'm not familiar with the word "pteryla". It's possible that it's a misspelling or a word in a different language. Could you provide more context or information about where you encountered this word?
Pterylosis refers to excessive skin flaking or scaling, typically on the eyelids, due to an abnormal thickening of the skin. It typically occurs in the apocrine gland areas, such as the armpits, groin, and eyelids.
Ptilopaedes are an extinct genus of plesiosaurs, a group of marine reptiles that lived during the Jurassic period.