8 PROCEEDINGS OF THE GEOLOaiCAL SOCIETY. [NoV. 21, 



If my first view of some of these fossils as belonging to the Cre- 

 taceous epoch was incorrect (though the first view of Mr. Moore 

 himself was the same), and if they belong to the very base of the 

 Secondary formations, as has since been surmised, they become the 

 first extensive collection of Lower Mesozoic age from a recognized 

 locality, and are so far interesting. 



Disputing the opinion that they were the marine representatives 

 of the Coal-beds of New South "Wales, I was inclined to admit that 

 they might still be the representatives of the "Wianamatta beds over- 

 lying the Hawkesbury rocks, which again overlie the Coal-beds ; 

 but Sir Philip Egerton's determination* of the Palaeozoic character 

 of the fishes in these upper beds proves that the Wollumbilla beds 

 are far above them, and have nothing in common with the "New 

 South Wales Coal-seams. 



Baron de Zigno, in his paper f " Sojpra i depositi di piantefossili 

 delV America Settentrionale, delle Indie e deW Australia, die alcuni 

 Autori riferirono alV epoca Oolitica"" (in which, I am glad to see, he 

 arrives at a more satisfactory conclusion than in his former writings), 

 has fallen into a mistake as to the WoUumbiUa beds being connected 

 with beds (7000 miles to the westward) containing a Tmniojpteris, 

 as reported by Professor M'Coy. 



Mr. Gregory's paper (1861) mentions, as a Cretaceous fossil, a 

 Yentriculite in flint, and as " fossils of Secondary age " specimens 

 of Trigonia and Ammonites from the Moresby Range, an Ammonite 

 from Mount Albert, and a Pecten from the east of Wizard Peak. 

 These localities in Western Australia are a kind of classic ground, 

 as they were described (though not geologically) by the late Rear- 

 Admiral King, and afterwards by Eear- Admiral Stokes. 



In 1862, a few fossils (probably from Mr. Gregory's collection) 

 were exhibited in London, including Trigonia costata. In the same 

 year I received a letter from Mr. Moore, dated 24th September, in 

 which he mentioned that he had found accidentally in Worcester- 

 shire a collection of fossils sent from Western Austraha by Mr. 

 Clifton. Of these, between 50 and 60 species were made out, and 

 30 of them were in a block not larger than a sheet of note-paper. 

 Of OoKtic forms he discovered the following: — 



Ammonites (3 or 4 species). 



Avicula (several species). 



Astarte. 



Belemnites. 



Chemnitzia. 



CucuUsea (3 sp.). 



Hinnites. 



Lima proboscidea. 



Lima. 



Lucina. 



Nautilus sinuatus ? 



Nerinsea ? 



Opis. 



Ostrea Marshi. 



Pecten (several species). 



Pholas australis, Moore, MS. 



Rhynchonella variabilis. 



Serpulas. 



Trigonia costata. 



Turbo. 



Besides these were Ammonites radians (a true Upper Lias form) ; 



* Quart. Journ. Geol. Soc. vol. xx. p. 1, 



t Eivista periodica della I. R. Acad, di Padova, vol. xii. 1863, p. 148. 



