TRANSACTIONS OF SECTION C. 



703 



•will be made presently, is the occurrence of transported boulders, 1 apparently 

 brought thither by the action of ice. 



Similar boulders have been observed in certain sandstones in Victoria known 

 as the Bacchus Marsh beds. From these beds two species of Gangamopteris have 

 been described by McCoy. Gangamopteris, it should be recollected, is a genus 

 of ferns closely allied to Glossopteris and abundant in the Damuda and still more 

 so in the Karharbari beds of the lower Gondwanas in India. 



5. Wianamatta Beds. — These are the highest portion of the whole system in 

 New South Wales. They contain the following organic remains : — 



ANIMALS. 



Pisces. — Palceoniscus antipodeus, Clithrolepis granulatus, 



PLANTS. 



Filices. — Thinnfeldia {Pecopteris) odontopteroides, Odontoptosis microphylla, 



Pecopteris tenuifolia, Tamiopteris wianamatta, 

 Equisetaceje. — Phyllotheca hocikefi. 



The fish from the Wianamatta, Hawkesbury, and Newcastle beds, four in 

 number, were considered as a whole by Sir P. Egerton to be most nearly allied to 

 the Permian fauna of Europe. 



The Wianamatta plants, like those in the lower beds, are classed as Jurassic. 



6. Higher Mesozoic Beds. — These, which do not appear to have been traced into 

 connection with the Wianamatta and Hawkesbury beds, occur in widely separated 

 localities, from Queensland to Tasmania. The correlation of these widely scattered 

 deposits, and the assignment of them collectively to a position above that of the 

 Wianamatta beds, appear solely founded upon the fossil flora, and it would be 

 satisfactory to have in addition some geological evidence or some palseontological 

 data derived from marine fossils. The Queensland flora is said to occur in beds 

 overlying marine strata of Middle Jurassic age. 



The following plants are recorded from these higher beds : — ■ 



CYCADEACE.E. — Zamites (Podozamites), 8 sp. ; Otozamites, 

 Filices. — Sphenopteris, 1 ; Thinnfeldia, 1 ; Cyclopteris, 



Tamiopteris, 1 ; Sagenopteris, 1. 

 Equisetaceje. — Phyllotheca, 1. 



1 ; Alethopteris, 1 



Tabulating, as in the case of the Indian Gondwana system, the age of the 

 different Australian subdivisions as determined by their fossil plants and animals on 

 purely pakeontological grounds, we have the following result : — 



South Africa. — In connection with the later Palaeozoic and older Mesozoic 

 rocks of Australia and India it is of importance to mention briefly the correspond- 

 ing fresh-water or subaerial formations of Southern Africa, although in that 

 country there are not such marked discrepancies in the palceontological evidence, 



1 Wilkinson, quoted by Feistmantel, Jtec. Geol. Su.ro. Ind. 18S0, p. 257. 



