Fig. 106—MESOZOIC and CAINOZOIC CEPHALOPODA.
A—Perisphinctes championensis, Crick. Jurassic. West Australia
B—Nautilus hendersoni, Eth. fil. L. Cretaceous. Queensland
C—Haploceras daintreei, Eth. sp. L. Cretaceous. Queensland
D—Crioceras australe, Moore. L. Cretaceous. Queensland
E—Aturia australis, McCoy. Cainozoic. Victoria
F—Spirulirostra curta, Tate. Cainozoic (Janjukian). Victoria
Jurassic Cephalopods.—
The Jurassic of Western Australia yields a rich cephalopod fauna, from which may be selected as typical examples the Nautilus, N. perornatus and the following Ammonites: Dorsetensia clarkei; Normanites australis; and Perisphinctes championensis ([Fig. 106 A]). These all occur in the Greenough River District, and at several other Jurassic localities in Western Australia.
The Jurassic system of New Zealand (Putataka Series) contains Ammonites aucklandicus and Belemnites aucklandicus, both from the upper marine horizon of that series.
Upper Jurassic Ammonites belonging to the genera Macrocephalites (M. cf. calloviensis) and Erymnoceras (E. cf. coronatum) have been recorded from Papua.
Lower Cretaceous Cephalopods.—
Remains of Cephalopoda are fairly abundant in the Lower Cretaceous of Australasia. From amongst them may be selected the following—Nautilus hendersoni ([Fig. 106 B]) (Q.); Haploceras daintreei ([Fig. 106 C]) (Q. and N.S.W.); Desmoceras flindersi (Q. and N.S.W.); Schloenbachia inflatus (Q.); Scaphites cruciformis (N. Terr.); Ancyloceras flindersi (Q. and N.S.W.); Crioceras australe ([Fig. 106 D]) (Q. and S.A.); Belemites australis (Q.); B. oxys (Q., N.S.W., and S.A.); B. sellheimi (Q. and S.A.); B. diptycha, = canhami, Tate, (Q., N.S.W., and S.A.); and B. eremos (Centr. S.A.).
Upper Cretaceous Cephalopods.—