350 



The Foraminifera of the Older Tertiary 

 (No. 2, Kent Town Bore, Adelaide). 



By Walter Howchix, F.G.S. 



[Read March 3, 1891. ] 



Plate XIIL, figs. 11 to 13. 



In 1881 a bore was put clown in the Waterworks Yard, in the 

 eastern suburb of Adelaide, under the control of the Hydraulic 

 Department. Prof. R. Tate F.G.S. examined the cores as the 

 work proceeded, and has described the section in detail. (Vide 

 Trans. Roy. Soc, S.A., vol. V., p. 40). The first 69 feet of the 

 section consists of Pliocene Drift, underlying which, in de- 

 scending order, there follow about 290 feet of Lower Tertiary beds, 

 the upper half of which are marine, and the lower lacustrine. 

 The marine beds are fossiliferous at intervals throughout the 

 section. The most important fossiliferous horizon occurs at the 

 base of the marine rocks, the latter having the lithological 

 features of brown and green clayey sands, 23 feet in thickness. 

 It was from the examination of material from this bed that tlie 

 following Foraminifera have been determined : — 



FAMILY MILIOLID.E. 

 Genus — Biloculina, cVOrhigny. 



1. B. ringens, Lamk. Sub-globose examples, such as Reuss 

 has named B, tiirgida, but has not the value of a varietal dis- 

 tinction. Rare. 



Genus — Miliolina, Williamson. 



2. M. trigonula, Lamk. Rare. 



3. M. oblo7iga, Montag. Large examples, some with produced 

 neck. Rather scarce. 



4. M. seminulum, Linn. Rather scarce. 



5. 31. Ferussaciiy d'Orb. Compressed and starved examples. 

 Rather scarce. 



Genus — Cornuspira, Scliultze. 



6. C. involvens, Rss. Rather scarce. 



FAMILY LITU0LID.5:. 

 Genus — Haplophragmium, Eeuss. 



7. //. agglutinans, d'Orl). The few examples obtained of this 

 species show a considerable range as to texture. The larger 



