3 comparing the Fossil Contents of the Southern sub-di\ 

 Upper Marine Series 1 — continued. 



Ger tssr at 



Nowra Grits. 



Waadrawandiau Series.. 



Mourlonia fi 





Mourlonia Sirzeleckiana 



Morris 





'Morn. 



' ■ ■ 





a Jforriswina, 



McCoy 





McCoy 



a uerneuliana, 













Pteropoda ?— 







■ nreolata.Mor. 







Vonularia laevigata.Morris 





Conutoria inornata, Dana 





















_ Orthoceras 





The fossils of the Conjola Beds, in ^ 



8 To these must be added the fossils collected by E. C. Andrews, and listed 

 in " Report on the Yalwal Gold Field," Mineral Resources of N.S.W.. No. 9, 

 p. 20. It is probable that the lower and middle portions of the Upper Marine 

 Series at Yalwal, mentioned by Mr. Andrews, belong to the Wandrawandian 

 Series, their thinness being due to the fact that the Devonian rocks in the neigh- 

 bourhood attain a high altitude. The upper portion is probably part of the 

 Nowra Grits, and the only fossils which are found here, and not found near 

 Nowra, are Pachydomus pusillus, McCoy, and Spirifera dwdecimcostata, McCoy. 



Most of the fossils of the Wandrawandian Series seem to 

 have come from the lower horizons, for the upper portion 

 of the formation is almost devoid of animal remains. At 

 Burrier, immediately above the fossiliferous horizon, a bed 

 of gritty sandstones is overlain by another series of finely 

 laminated shales and sandstones, which are very barren ; 

 and so far beyond a few badly preserved Zaphrcntis, but 

 few fossils have been obtained. Taking the Wandrawandian 

 Series as a whole, they seem to have had a more littoral 

 origin than the Gerringong Series, and thus show a greater 

 ver short distances. 



