92 Ernest IF. SkeaU : 



are described as Silurian or Ordovician. In this paper we have 

 the first indication that the palaeozoic rocks are fossiliferoua 

 They describe a coarse conglomerate which underlies the older 

 bat^a/lt in many places as being " derived in the main from the 

 older palaeozoic i?edimentary rocks of the district, and from the 

 granitic series. In two places — namely, in the first cutting on 

 the coast road south of Frankston, and near the first outcrop of 

 granite rock south again from this place on the >hore, we have 

 found a few graj^tolites in slate pebbles. They are very indis- 

 tinct, and beyond saying that they are species of Diplograptus, 

 we do not at present care to venture. Their evidence, chen, 

 leaves the age of the rocks still open." 



In the year 1904 the first definite record of fossils found " in 

 situ "' in the older Palaeozoic rocks of the Mornington Peninsula 

 was given by Mr. T. S. Hall, M.A. ' The record does not 

 mention the finder of the fossils, but I understand that it was 

 Mr. W. H. Ferguson, of the Geological Survey of Victoria. The 

 first record is that of the occurrence of Climacograptus and 

 Diplograptus in boulders from Grice's Creek, Mornington, a 

 locality nearer to Moorooduc than the earlier finds of Messrs. 

 Hall and Pritchard. The evidence of these fos^ils, however, 

 still leaves the age of the beds doubtful. A second suite of 

 fossils found " in situ " at Balnarring, and identified by Mr. 

 Hall, showTs clearly that Lower Ordovician rocks occur in that 

 part of the Mornington Peninsula. Mr. Hall records 



Didyuiograptus, c.f. pritchardi. 



Tetragr apt us appr oximatus . 



Tetragraptus ([uadribracliiatu.s. 



Tetragraptus fruticosus (/). 



Ostraooda. 

 Mr. Hall states that if the identification of T. fruticosus (?) is 

 correct, the age of the rocks is Bendigonian, and in any case 

 cannot be higher than the horizon of Castlemaine. Another 

 series of fossils from Bulldog Creek, near Dromana, yielded to 

 Mr. Hall the same forms a< those from Balnarring, and in 

 addition undoubted specimens of Tetragraptus fruticosus, thus 

 fixing their Bendigonian horizon. 



1 Reports on (iiM^tolites, Hocdrds of Gi()lo<;i<;il Suivey of Victoiiii, vol. i., pt. iii., 11HI4, 

 PI). 220, 221. 



