RELATIONSHIPS OP THE AUSTRALIAN CAINOZOIC SYSTEM. 
Lighthouse and Sorrento roads. Besides generally resembling the 
Flinders limestone, to which horizon it clearly belongs, it proves on 
examination to contain tests of Lepidocyclina, the first recorded 
east of Port Phillip, the previously known localities being Batesford, 
Keilor, and Muddy Creek, Hamilton. This occurrence strengthens 
the view that the beds in the Mornington district also, that overlie 
the older basalt, belong to the Janjukian and not to the Balcombian, 
as Hall and Pritchard supposed,* judging from their examination 
of the fossils at Landslip Point, Frankston. This assemblage, by 
the way, does not contain any restricted Balcombian species, for even 
Vaginella is found very sparingly as high in the geological series as 
the younger beds of Muddy Creek (Kalimnan), according to the list 
of Dennant and Kit, son. y Moreover, the Frankston locality contains 
some restricted Janjukian species, as shown earlier in this paper. 
The reason one might advance for the absence of Lepidocyclina 
from the Flinders limestone is its deep-water aspect, the foiaminifera 
belonging to that genus appearing to favour shallow to moderately 
deep-water conditions, but this evidence is not conclusive, since 
the Filter Quarry deposit is both polyzoal and Lepidocvcline in 
constitution. 
C. — The Bairnsdale District. 
The Cainozoic rocks of this area were first noticed in detail by 
Dr. A. W. Howitt, in his paper “ Notes on the Geology of Part 
of the Mitchell River 
Division of the Gipps- 
land Mining District. 
In this paper the beds of 
the Tertiary system are 
divided into — 1st. Middle 
Tertiaries (Miocene), with 
a coarse limestone con- 
taining marine fossils ; * 
marly beds with similar ^ 
remains. 2nd. Upper J 
Tertiary (Pliocene) fer- 
ruginous pebble con- 
glomerate ; clayey and 
sandy beds, stained with 
iron oxide, and contain- 
ing marine fossils in 
concretionary layers of 
arenaceous ironstone ; 
imperfectly flaggy sand- ° /' 
stones. 
an - 
PosI-Ka-tiw'na.n 
1 ron4lont 
sVieit U«<4s 
cla-yi a.Ki( 
i mnsltnc 
Thajtv\5ria.k. 
Lm< 
Qrtir's 
<K'r\ntr j 
□ ijkrr^ seotiom m The, 
Mitchell river Ti 1 st R\cv . 
* Proc, Roy. Soc.. Viet., vol. xiv. (N.S.), pt. 1, 1901, p. 36. 
t Reo. Geol. Surv. Viet., vol. i., pt„ 1, 1902, p. 137, 
t Prog. Rep. Geol. Surv. Viet., No. 2, 1874, p. 59. Also ibid., No. 4, 1877, p. 122 
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