Bate>>ford Limestone. 311 



Victorian Janjukian Beds. Other closely allied fossils are a 

 species of Lintliia from the Oamarii Series of the Geraldine 

 District, N.Z., and L. moorahoolensis, Pritch., from Batesford ; 

 and the '' Celhporina' {Ctdlejjora) jKij^aJosa from the Oamaru 

 Series and a similar, but undescribed form in the polyzoal rock 

 of Victoria and S. Australia. 



Summary, and Coxcluj^ions as to the Age of the Beds. 



1. — The Batesford Limestone Series includes a Lepidocyclina 

 and a polyzoal, facies, there being a gradual transition from one 

 to the other. They were evidently formed at one continuous 

 period of sedimentation, the palaeontological differences being 

 due to the deepening of the water during the formation of the 

 polyzoal banks in this area. In other localities, however, the poly- 

 zoa, by the abundance of the more massive forms, show evi- 

 dence of shallower conditions. 



2.-— This series is of Janjukian age, as shown by Messrs. Hall 

 and Pritchard ; and corresponds to the widespread stage of the 

 polyzoal rock which represents a comparatively distinct phase 

 in the Tertiary history of Victoria. 



3. — By the presence of Lepidocyclinae of the L. marginata 

 type, accompanied by L. toui^noueri and L. martini, as well as 

 by Cyclodypeus pustulosus, the limestones are shown to be the 

 homotaxial equivalents of the Burdigalian beds as developed in 

 Southern Europe (Faluns de Saint-Paul, near Dax), and in Java, 

 Sumatra, Borneo and the New Hebrides. 



4. — The modern character of the beds is indicated by the 

 Ostracoda, which are all, with the exception of one new species, 

 of living types, 



5. — By comparison, the Keilor Lepidocyclina Limestone 

 appears to be on a slightly lower horizon of the Janjukian series 

 than that of Batesford, as shown by the addition to the Bates- 

 ford Lepidocyclina fauna, of L. verbeeki. a form also occurring 

 in a still lower stage at Clifton Bank. Muddy Creek, near 

 Hamilton. The Gaj Beds of India I would refer to this, Keilor, 

 horizon, which in the case of the Indian beds, is regarded by 

 Vredenburg as probably Upper Aquitanian. The L. insulae- 

 itdtalix beds of Christmas Id., in all probability, also belong 

 here. 



