202 REMARKS ON FOSSILS OF PERMO-CARBONIFEROUS AGE, 



Kimberley district, is of large extent, and in it are comprised 

 Nos. 2-6 of the above localities. It is a light-coloured magnesian 

 limestone interbedded with thick layers of shale, and thin 

 arenaceous bands usually fossiliferous, the list given by Hardman 

 being well-known Carboniferous Limestone species. It comprises 

 within its area the Napier, Hull, Rough, Oscar, and other 

 ranges."^' The sum of Mr. Hardman's explorations went to show 

 that "there are wide-spread deposits of Carboniferous rocks in 

 "Western Australia, although, even within the last few years, this 

 has been doubted."! 



We may now consider the localities yielding the two sets of 

 fossils seriatim. 



Ironstone Ridge and its Fossils. — From this locality Mr. 

 Froggatt has collected a sandy ironstone crammed with fossils, 

 which weather out in a peculiar state of preservation, and from 

 their crowded nature it is difficult to sufficiently individualise 

 specimens for description. Mr. Froggatt informs me that this ridge 

 is about seven miles long, and from thirty to forty feet above the 

 surrounding country. It is composed of horizontally bedded 

 ironstone. The organic remains are essentially Permo-Car- 

 boniferous in age, answering to those of our Lower and Upper 

 Marine beds in the New South Wales coal-bearing series. Iron- 

 Stone Ridge is not shown on Hardman's map, but other parallel, 

 and most probably similar, ridges are near, such as Grant Range 

 and Mount Anderson, the latter being described as composed of 

 " red and white sandstone, with flaggy ironstone on the summit." 

 These ridges evidently crop through the Pindan Sands which were 

 deposited round them, and it is therefore easy to understand that 

 where not specially marked on the map they might be mistaken 

 for a portion of the Pindan Series. 



The following are the species discernible: — 



* First Report, 1884, No. 31, p. 9. 

 t Second Pveport, 1885, No. 34, p. 17. 



