English edit

Etymology edit

From scientific Latin Hyolithida (order name).

Noun edit

hyolithid (plural hyolithids)

  1. A member of the Hyolithida order of extinct lophophorate animals.
    • 2017 January 18, Susannah Lydon, The Guardian[1]:
      A study of over 1500 specimens of Haplophrentis, a mid-Cambrian hyolithid from the celebrated Burgess Shale in the Canadian Rockies and the Spence Shale from Utah, has revealed the details of its soft parts.