 However, in the original description of "Eomysticetus", the similarities of ""Mauicetus" lophocephalus" to "Eomysticetus", although Sanders and Barnes (2002) stopped short of assigning ""M." lophocephalus" to Eomysticetidae.Subsequent studies confirmed the placement of ""M." lophocephalus" and ""M." waitakiensis" in Eomysticetidae.As members of Chaeomysticeti, eomysticetids used their baleen plates to filter krill and other planktonic organisms.