DESCRIPTION OF A LIMESTONE OF LOWER MIOCENE AGE. 283 
In his paper on the echinoids of New Guinea, Tenison 
Woods’ referring to the limestone of Yule Island mentioned 
by Wilkinson, states that he could not “‘detect any Fora- 
minifera on subjecting different portions to microscopic 
examination.’’ He also notes its resemblance both litho- 
logically and paleeontologically (in the presence of well 
preserved Pectens) to the Mount Gambier limestone, 
although the Yule Island rock showed an absence of polyzoa. 
Besides the Cainozoic fossiliferous rocks above mentioned, 
Jurassic,” doubtful Cretaceous,* and numerous Pleistocene 
fossils* have been recorded from Papua. 
2. Note on the Bearing of the Foraminiferal Limestones 
upon the occurrence of Petroleum Fields. 
The Cainozoic geology of the petroleum area of the Gulf 
division of Papua indicates that there are in this district 
enormous deposits of sandstone, marls and hard limestones, 
Mr. EH. R. Stanley remarks of these beds ‘‘All carry fossil 
remains in parts.’’> The limestones and marls, as shown 
by this present work and previous papers already quoted, 
* Proc. Linn. Soc.. N.S. Wales, Vol. 11, pt. 2, 1877, p. 126. 
? Etheridge, R. jnr., “Our Present Knowledge of the Paleontology 
of New Guinea.” Rec. Geol, Surv. N. 8S. Wales, Vol. 1, pt. 3, 1889, pp. 175, 
176. Also Etheridge and Jack, Geol. and Pal. Queensland and New 
Guinea, 1892, p. 696. 
3 Etheridge, R. jur., in Pal. Queensland, etc., p. 696. Also Maitland, 
A. G., “The Salient Features of British New Guinea (Papua).” Journ. 
W.A. Nat. Hist. Soc., Vol. 11, No. 2, May, 1905, p. 52. 
* Etheridge, R. jnr., Rec. Geol. Surv., N. 8. Wales, Vol. 1, pt. 3, 1889, 
p. 174. 
> See Report by J. E. Carne, F.a.s., on the Petroleum Oil Field, Vailala 
River, ibid., p. 174. In this report Mr. Carne states that the blue mud- 
stone and sandstone of the Mura Group and at Orokolo Spring contain 
indications of petroleum ; and that the petroleum-bearing strata of Vai- 
Jala and the coal-seams at Purari and Curnick Rivers are identical in age. 
Mr. Carne further draws attention to the probable westerly extension of 
the oil belt across Dutch New Guinea and thence to Timor and Java. 
Also “ Report on the Geology of the Vailala Petroleum Area, Gulf 
Division, Papua.’ Stanley, E. R., Commonwealth Government Report 
on Papua, for the year ending June 30th, 1912, p. 176. 
