. "Ptilocrinus" . _:b76586493 . "Hyocrinida" . . . _:b76586493 . . . _:b76586493 "WoRMS id" . "Hyocrinidae" . . "Animalia" . "Ptilocrinus (Ptilocrinus)" . . "760177" . . "837940" . . _:b76586493 . _:b76586493 "760177" . "Echinodermata" . .