Age of Ironstone Beds of the Mornington Peninsula. 9 



the Beaumaris and Brighton series is proved by the faunal 

 -aspect of the fossil casts ; and so they underHe the KaHmnan 

 to the north. 



Kitson's observations as to the ferruginous beds invariably 

 overlying the fossiliferous clays (Balconibian) are valuable, as 

 that alone fixes their approximate position in the Tertiary series. 

 And lastly, the prediction that fossil evidence rather than the 

 stratigraphical may settle the vexed question as to age and suc- 

 cession can be regarded as prophetic. 



T. S. Hall and G. B. Pritcha-rd (1901) in their paper on 

 ■*' Some Sections Illustrating Geological Structure of the Country 

 .about Mornington "^ refer to the ferruginous grits as follows : — 

 " Ferruginous sands and clays mantle over a great part of 

 the area, and their age is shown to be Eocene^ by the fossils 

 . obtained at Landslip Point. It is, of course, quite within the 

 bounds of possibility that further investigation may show that 

 some of the beds are younger than this ; but, in the meantime, 

 we seem justified in referring the .ferruginous grits of the dis- 

 trict all to the one age." 



An interesting point is here revealed, insomuch as the above 

 authors, believing that some of the ferruginous beds may be 

 younger than the "Eocene," thus gave additional proof, now 

 that they prove to be Janjukian, from field evidence, that the 

 Janjukian overlies the Balcombian, since the ferruginous grits 

 and accompanying fossils are superposed on the Balcombian 

 marls. 



Messrs. Plail and Pritchard also furnished a list of fossils 

 from Landslip Point, Frankston, which is as follows^ :— 



Placttnanomia sella, T3.tG ; Pcctcn dichotomalis, T^Xq; Amits- 

 siiim zittcli, Hutton ' sp. ; Lima bassi, T. Woods ; L. 

 liuguliformis, Tate; Spondylus ps end or ad ula/ McCoy ; 

 Septifer fenestratus, Tate; Niiculd obliqiia, Lamarck; 

 Leda vagans, Tate; Glycimeris maccoyi/' Johnston sp. ; 

 Area {Barhatia) eelleporaeea, Tate sp. ; Ciieiillaea 

 eorioensis, McCoy ; Cardita delieatula, Tate ; Chama lamel- 

 lifera, T. Woods ; Cardiiim hcmimeris , Tate ; Venus 

 (Chione) cainosoicus, T. Woods sp. ; Cdtbitla pyxidata, 



3. Proc. Roy. Soc. Vict., Vol. xiv. (N.S.), pt. i., 1901, p. 44, 



4. The Landslip Point Fossils were later shown to be of Janjukian or 

 Miocene age. See Chapman, Mem. Nat. Mus., Melbourne, No, 5, 1914, pp. 

 29, 30. 



5. Proc. R. Soc. Vict., Vol. xiv. (N.S.), pt. i., 1901, pp. 46-53, The 

 nomenclature is here corrected to date. 



