406 
(c) The Werrikooian .—Probably of Upper Pliocene or Lower Pleistocene 
age. It is represented in the bores by estuarine sands with foraminifera and 
occasional mollusca. In one bore, No. 9, this deposit was of great thickness 
(163 feet), the exceptional accumulation of estuarine sands at this locality 
pointing to a line of crustal movement or sagging during Werrikooian times. 
In one bore (No. 6) an old dune-limestone occurs, probably of this age, 
denoting the proximity of the shore line at that period, since the rock is largely 
composed of drifted foraminifera and other marine debris. 
A 
08* 143° ur 
Fig. 41. Sketch map of the Cainozoic Murravian basin and .associated areas. 
Partly based on a map by Professor J. W. Gregory. 
( d) The Later Pleistocene and Holocene of the bores consist of variously 
coloured sands, sometimes ferruginous, at others pyritous, with concretionary 
or roughly pisolitic pink and white limestone, evidently formed by the agency 
of mollusca and algae in inland lakes. 
(e) The sequence of the rocks in the bores gives additional and corroborative 
evidence to that already obtained from the Sorrento bore, where the bulk of 
the Cainozoics was penetrated without, however, reaching bed-rock. 
Paleontological Results. 
(/) From these borings an extensive series of fossils was obtained, com¬ 
prising several thousands of specimens, and referred to 455 species and 
varieties. Thirty-eight (38) new species and varieties have thus been 
brought to light and described. All the specimens are duly labelled, and 
preserved for future reference in the collection at the National Museum. 
Physiographical Results. 
(g) The bathymetrical evidence of the several faunas shows the Janjukian 
fossiliferous beds to have been deposited under varying conditions in this 
great inland gulf; the polyzoal limestone in moderately deep, clear water, 
