achillesheals achillesheels alaskacephale allaccesspass alpha-helical apple-cheeked callidadelpha cephalaspidae cephalaspidea cheese-headed deepspacecaps diddle-daddle dipchasphecia discipleships haileselassie hapalidiaceae hesaidshesaid hippie-dippie killiechassie la-la-la-lies lachesillidae lackadaisical lillheikkila pachilaipalli pakada-pakadi pas-de-calais paschelkiella philladelphia phillipsiidae plesiadapidae saddle-shaped sheseescheese shield-shaped sickle-shaped siedleckiidae spaceshiplike speckle-cheek splish-splash