Cephalopoda - Goniatitida - Cyclolobidae

Alternative combination: Arcestes (Cyclolobus) persulcatus

Full reference: A. Rothpletz. 1892. Die Perm-, Trias- und Jura-Formation auf Timor und Rotti im Indischen Archipel. Palaeontographica 39:57-106

Belongs to Cyclolobus according to B. F. Glenister et al. 1990

Sister taxa: Cyclolobus kiselevae, Cyclolobus kullingi, Cyclolobus oldhami, Cyclolobus ruzhencevi, Cyclolobus teicherti, Cyclolobus walkeri, Cyclolobus zhongbaensis

Ecology: fast-moving nektonic carnivore

Average measurements (in mm): shell width 19.7, shell diameter 40.0