182 PROCEEDINGS OF SECTION C. 



dip 30°, dir. 50° W. of S., and the following sequence of beds from the 

 top of the clifi to low-water mark occurs : — 



1. Cherts containing casts of Belemnites, Nucula, Maccoyella, 



&c. 



2. Sandstones and shales containing abundant plant remains, 



some of the shale bands being particularly rich in carbo- 

 naceous material. Thickness, from 10 to 15 feet. 



3. Calcareous sandstone of a very dark colour containing 



Crioceras australe, Belemnites canhami, Maccoyella, and 

 occasional traces of plant remains. Thickness, about 

 10 feet. 



4. Sandstones and shales very rich in plant reniains, and with 



no apparent marine fossils. Thickness, about 100 feet. 



5. Sandstones and shales containing occasional traces of plant 



remains and abundance of marine fossils, such as Fissi- 

 lunula, Maccoyella, Belemnites, &c. (See Plate IV.) 



The cherts and sandstones are lithologically identical with those 

 of the so-called Maryborough beds of the mainland, and the similarity 

 of fossil remains is also very marked. 



Mr. F. Chapman, of the National Museum, Melbourne, has very 

 kindly determined some of the fossils collected from the marine beds, 

 and amongst them he recognises the following : — 



Fossil. 



Nucula truncata, Moore 

 Nucula quadrata, Etheridge 

 Malletia elongata, Etheridge sp. 

 Radula randsi, Eth. fil. sp. 

 Maccoyella barkleyi, Moore sp. 

 Maccoyella cf. substriata, Moore sp. 

 (?) Thracia sp. 

 Pleuromya plana, Moore sp. 

 Fissilunula clarkei, Moore sp. . . 

 cf. Cyrenopsis opallites, Eth. fil. 

 Crioceras australe, Moore 

 Belemnites canhami, Tate 



There are four purely Rolling Downs fossils, as far as is known, in 

 these beds, and particular interest is attached to Crioceras australe and 

 Belemnites canhami, which are regarded as characteristic of the Rolling 

 Downs formation. 



There is little doubt on palseontological evidence then, and this 

 is supported by certain lithological evideme, that these marine beds 

 are of Lower Cretaceous age. 



