1866.] CLAEKE AFSTEALIAN SECON^DAEY DEPOSITS. 9 



and A. Moorii, Ijjcett, My adtes, and Pholadomya, considered Middle 

 Lias, also occurred. The rock itself gave 56 per cent, of iron. This 

 agrees very well with what Stokes says* of the abundance of iron 

 dijffused and in blocks about Moresby Eange and Wizard Peak. Mr. 

 Moore tells me that there is nothing in common between this col- 

 lection and my Wollumbilla collection ; and if so, we have a distinc- 

 tion of deposits ; and though not far separated in point of age, yet it 

 is so far clear that the Western and the Eastern sides of Australia 

 are not altogether identical in age, though the Carboniferous forma- 

 tion below the Secondary rocks appears the same. Although Mr. 

 Moore did not know whence the fossils came, I think they certainly 

 came from the neighbourhood of the Moresby Range. I believe the 

 list was published by the British Association, but I cannot now refer 

 to the volume. 



In November, 1863, 1 received from the Honourable F. B. Barlee, 

 F.E.G.S., Colonial Secretary of Western Australia, a case of fossils 

 in a ferruginous matrix, containing — 



Avicula (of large size), 



Astarte, 



Nautilus. 



Nucula, 



Pecten (? vesicularis), 



Pholadomya. 



These came from about 15 miles north of Champion Bay, and pro- 

 bably from near the Moresby Eange. A subsequent parcel of fossils 

 reached me in 1864, from the same neighbourhood, and among them 

 I find the following : — 



Ammonites (4 species). 



Area (3 species). 



Astarte. 



Avicula Miinsteri. 



Belemnites canaliculatus (2 specimens). 



Cardium. 



Chemnitzia. 



Dentalium. 



Lima (2 species). 



Myacites (3 species). 



Mytilus. 



Nautilus (2 species). 



Nerinsea. 



Ostrea Marshi. 



Ostrea (very small species). 



Pecten (4 species). 



Pholadomya. 



Ehynchonella (3 species), 



Serpula (2 species) 



Trigonia (3 species). 



Taking the general aspect and association of these fossils, and the 

 occurrence of such forms as Avicula Miinsteri, Ostrea Marshi, and 

 Ammonites Moorii, it is almost certain that the nearest representative 

 of the formation is the Inferior Oolite. The Nautilus sinuatus and 

 Trigonia costata lead to the same conclusion ; but another Nautilus 

 in my collection appears to be new. It appears certain, at any rate, 

 that the Moresby Eange is the headquarters of the Jurassic forma- 

 tions in Western Australia. 



There is no necessity to enter here on any discussion as to the 

 palpable position of these rocks with respect to the highly altered 

 deposits of sandstone to the northwards of them, though it would 

 seem that the Trias is represented there. But I may properly add 



* Discoveries in Avistralia, vol. ii. p. 387. 



