Figure 4 in A redescription of the fossil coleoid cephalopod genus Palaeololigo Naef, 1921 (Decapodiformes: Palaeololiginidae) and its relationship to Recent squids

Figure 4. (A) Palaeololigo oblonga (Wagner), holotype. Formerly in Paläontologisches Museum Munich, from Wagner 1860; (B) holotype of Teuthopsis princeps Wagner. Formerly in Paläontologisches Museum Munich, from Wagner 1860; (C) P. oblonga (Wagner), dorsal view of gladius, based mainly on the holotype, restored to original shape, as for illustrations of Recent gladii; (D) P. oblonga (Wagner), left lateral views of gladius, based mainly on the holotype, restored to original shape; (E) P. oblonga (Wagner), gladius of Paläontologisches Museum Munich AS 1968 I 62, natural size; (F) P. oblonga (Wagner), gladius of Jura-Museum, Eichstätt SOS 1325, natural size; (G) Niobrarateuthis walkeri Green, dorsal view of gladius. Upper Cretaceous (Coniacian or Santonian), Kansas, USA. Actual length of specimen about 60 cm, after Green (1977); (H) N. walkeri Green, right lateral view (details as for Fig. 4G).