399 
Terebratulina catinuliformis, Tate. 
Magasella lunata, Tate. 
MageUania garibaldiana, Dav. 
Fibularia gregata, Tate. 
Scutella marsupiatu, sp. nov.; probably = Echinocyamus ( Scutellina ) 
patella, Tate sp., marsupiate var. 
Echinolampas murrayanus, Laube. 
Pentacrinus. 
Antedon. 
Graphularia senescens, Tate sp.” 
Prof. Tate gives the geological equivalents of the strata passed through 
as follows :— 
“ Mammaliferous drift .. .. .. 395 feet. 
Older Pliocene .. .. .. 395-715 feet. 
Eocene ? (Marine) .. .. .. 715-760 „ 
Eocene (Marine) .. .. .. 760-1,681 „ 
Eocene (unfossiliferous) .. .. 1,681-2,262 ,, 
The first series to 395 feet probably represent Recent to Werrikooian; 
395-715 ft. = Kalimnan strata; 715-1,681 ft. = Janjukian; and 1,681- 
2,262 ft. = Janjukian (fluviomarine). 
A note on bore 1 by Prof. Tate 1 gives details of the fossiliferous 
contents of the material, and shows, by its intermixed faunal characters in 
samples at 455-572 feet, that there was a probable inclusion of material 
worked in from higher levels, i.e., Kalimnan. 
Dry Creek Bore, 5 miles from Adelaide. 
The bore was put down to 410 feet. So far as one can judge from the deta ils 
and contents of this bore, 2 the following is the sequence of strata :—- 
0-320 feet .. Sands and clays. Holocene to Werrikooian. 
320-400 feet .. Clay with shells. Kalimnan and some Werrikooian 
admixed. 
400-410 feet .. Sands and quartzite pebbles. 
The foraminifera recorded by Mr. Howchin in the paper by Prof. Tate 
mentioned below (p. 177) are Kalimnan and Recent, as shown by the mollusca. 
r I 
NOTES ON THE BORES OP THE ADELAIDE BASIN. 
The conditions under which the above deposits were formed closely agree 
with the conditions which prevailed in the Port Phillip area towards the latter 
part of the Tertiary period, as revealed by the boring at Sorrento. In both 
areas—the Adelaide and the Port Phillip basins—during the Pleistocene 
there was a steady and continuous depression of the shore-line, resulting in 
the deposition of from 300 to 400 feet of comparatively recent shallow-water 
shell-muds and sands. 
The great thickness of the Tertiaries in the Croydon bore as compared 
with that of Kent Town can only be accounted for, as Mr. Howchin has 
already shown, 3 by the earth movements and step-faulting, resulting within 
the distance of a few miles of a difference in the vertical thickness of the 
Tertiary sediments of nearly 2,000 feet. 
Prof. Tate sought to explain this difference in thickness 4 by assuming 
that the Kent Town series was of a later period, and more littoral in organic 
contents. Howchin’s work on the foraminifera of this bore, however, shows 
1 Trans. Roy. Soc. S. Aust., Vol. XIII., 1890, p. 184. 
2 Ibid., p. 172. 
* Rep. Aust. Ass. Adv. Sci. Melbourne meeting (1913), 1914, p. 161. 
4 Trans. R.oy. Soc. S. Aust., Vol. XXII., 1898, p. 196. 
