249 
The following are the most characteristic species ob- 
‚ served: — 
Nautilus sp. (as at Aldinga) Leda sp. 
Voluta sp. Lucina sp. 
Fusus simulans, Tate (?) Cardium moniletectum, Tate 
Turritella aldinge, Tate Chione multitaeniata, Tate 
Trivia sp. C. sp. 
Magellania pectoralis, Tate 
P. flindersi, Tate Schizaster abductus, Tate 
P. hochstetterr, Zittel Macropneustes decipens, 
Modiola sp. Tate 
Ресет .eyrer, Tate 
This chalcedonic deposit weathers to a more or less pew- 
dery, whitish mass. A similar deposit occurs in a well 
section and on ploughed land on a property situated 
about a quarter-mile from the main road in Maclaren Vale. 
In this locality Turritella aldingæ is a conspicuous form. 
In an excavation on the Vale Royal Vineyards a bei of 
richly fossiliferous, glauconitic sandstone was passed through, 
and it is capped by a hard band of ironstone cement. The 
height of the tertiary beds at the Vale Royal Cellars is, 
roughly, 450 feet above low-water mark at the present day. 
South of Aldinga the beds, which are unmistakably identical 
and continuous with the Ilappy Valley exposures, are at 
water-level. The question arises whether this difference in 
altitude can be attributed to the gradual upheaval of the 
beds, or to a fault : but the former assumption appears the 
more likely. The fossils which I gathered at this excavation 
are in a better condition than in either of the former in- 
stances, and appear principally as pseudomorphs in glau- 
conite and limonite. The species are: — 
Turritella aldinge, Tate Protocardium hemimeris, 
Calyptraea  placuna, Tate 
Lima bass, Т. Wds. 
Limatula jeffreysiana, Tate 
Pecten eyret, Tate 
Ea SP. 
P. flindersi, Tate 
Septifer subfenestratus, sp. 
nov. 
Cardita latissima, Tate 
Cardium victoria, Tate 
Chione cainozoica, Т. Was, 
Tate 
Tellina, sp. 
Myadora, Sp. 
Humphreyia teredina, Tate 
Magellania pectoralis, Tate 
M. insolita, Tate 
M. tateana, Tate 
Magasella, sp. 
Dentalium subfissura, Tate 
Amphihelia striata, Т. Wds. 
Miocene.— Under this heading I have classed ап ex- 
tensive sandstone formation, which, to all appearances, con- 
formably overlies the true Eocene. Its physical features are 
