sentences:  "Clinolobus", from the Middle Permian of Sicily, has about 14 lobes with the course of the external suture forming a V.
  
  The Adriantidae contains three subfamilies, the Adrianitinae, Hoffmanniinae, and Texoceratinae.Most of the genera in the family, some 15 in number, are included in the Adrianitinae.The remaining two are included, one each, in the Hoffmanniinae and Texoceratinae.