BY A. B. WALKOM. 



87 



Table ix. 



Table showing species in the Hawkesbuiy Series identical or closelj^ 



comparable with species in the Ipswich Series. 



Narrabeen Stage. 



Thinnfeldia lancifoUa 



T. odontopteroides 



T. odoitfopteroides (Haw 



kesbury type) [— T. 



F< isfmauteU] 

 Cladophhiis cf. Royiti 



Hawkesbury Sandstone 

 Stage. 



Thinnfeldia odontopteroides^ 

 [=7^. Feistniavfeli] 



Oleaiidridinm [ Tfemopteris\ 

 hntricaliforme 



Macrotamiopteris [ T<vniop 

 teris] fvianamattce 



Wianamatta Stage. 



Phyllotheca an-sfra/is 

 Thinnfeldia odontopteroides 



[— T. odonfopteroide,s and 



T. Fei.stmanttfi] 

 T. lancifoUa 

 Macrof<eniopttris [ T<in iop- 



teris] nnanamatta^ 

 A lethopteris [ Cladoph Jtbifi] 



austral is 

 Baiera mid t if da {B. Sim- 



7no)idsi] 

 tPterophyJI inn[''.) sp. 



It must be admitted that the flora of the Hawkesbury Series 

 has been but imperfectly determined, but what evidence theie 

 is, goes to show that the Ipswich flora is much more closely 

 related to that of the Wianamatta Stage than to either the 

 Hawkesbury Sandstone Stage or the Narrabeen Stage. 



Having considered the evidence of the fossil plants, we may 

 now briefly deal with the evidence provided by the other fossils 

 in these Series. 



The results so far published, of the examination of fossil 

 insects* from the Ipswich Series and Wianamatta Stage, do not 

 give promise of any special value from a stratigraphical point of 

 view, though, no doubt, they are of interest to the entomologist. 

 However, the fact that insects are found, more or less abund- 

 antly, in these two Series, and have not yet been discovered in 

 the other Series of Lower Mesozoic rocks, with tlie exception 

 of Cicada (?) loivei in the Talbragar Beds, is a point which must 

 be taken into consideration when discussing the correlation of 

 the Series. The insects in the Wianamatta Beds belong to the 

 same Orders as some of those in the Ipswich Series, aud, in one 

 case, the same genus is present, but there is no specific identity. 



Queensland Geol. Surv., Publication No. 253. 



