無螯下目 Carolin Haug, Dieter Waloszek, Andreas Maas, Matthias Wulf & Günter Schweigert. Development in Mesozoic scyllarids and implications for the evolution
八腕目(8): 602–613. ISSN 0265-9247. doi:10.1002/bies.201100001. Fuchs, Dirk; Schweigert, Günter. First Middle–Late Jurassic gladius vestiges provide new evidence