[Extracted /row tie Geological Magazine, Decade Y, Yob III, 
No. 509, November, 1906,] 
Notice of some Fossils from Singapore discovered bt 
John B, Scrttenob, F1G..S,, Geologist to the Federated 
Max a; States, 
By R. Rrmut Newton, F,G,S„ 
r of tha Department of Geology, British Museum (Nat, Hist), Cromwell Road, S.’VT. 
(PLATE XXV.) 
I S rep resen ling the first fossils yet recorded from Singapore, 
these specimens are of considerable interest. They principally 
consist of marine Lamel lib ranch remains accompanied by an obscure 
indeterminable G aster opod, and a few fragmentary terrestrial plants, 
Their condition, however, as easts and impressions renders them 
most difficult to work out satisfactorily, more e&jiectaily the shells 
where only external features of the valves are available for study. 
Some of tbo specimens, however, retain certain points of structure 
or contour which appear to have an important bearing on their 
probable geological age. The association of land and marine 
organisms would at once suggest an estuarine or lagoon origin for 
the beds containing them, more especially as the moilusoa belong to 
genera or families which may be regarded as of shallow-water habit, 
whilst the plant-remains might be accounted for by the close 
proximity gf land or the transporting agency of river action. 
Among the shells, that referred to Ooniomya is of chief interest, 
since it belongs almost exclusively to the Mesozoic period, being 
particularly characteristic of Jurassic rocks ami of much rarer 
occurrence In deposits of Cretaceous age. 
Although exceedingly rare, Goniomya has also been found in 
Palteozoio rocks, Erotow having figured and described Q. Ariien»i» 
from the Kuaslan Permian (Soo. of Naturalists Imp, University of 
Kasan, 1885, vol jciiE, p. 225, pi, iii, fig. 20), and an unnamed 
form from rocks of similar age in the Central Himalayas has been 
more recently recorded by Dr, Carl Dioncr (Pal»outologift Indica, 
