rocks, South Australia. Linnean Soc. of New South Wales 21: 
571-583. 
David, T.W.E. and R.J. Tillyard 
1936 Memoir on fossils of the Late Pre-Cambrian (New Proterozoic) 
from the Adelaide Series, South Australia. 122 pp. Sydney: Angus 
and Robertson. 
Davidson, C.F. 
1959 How old is the Cambrian System? Nature 183 (4663): 768-769. 
1960 Age of the Cambrian System. Nature 187 (4742): 1020-1021. 
1965 Geochemical aspects of atmospheric evolution. Proc. Natl. Acad. 
Sci. U.S.53(6): 1194-1205. 
Davitashvili, L.S. 
1972 The doctrine of evolutionary progress: The theory of oromorphosis 
(in Russian), 324 pp. Moscow: Metsniyereba. 
Dawson, J.W. 
1865 On the structure of certain organic remains in the Laurentain 
limestones of Canada. Quart. Jour. Geol. Soc. London 21: 51-59. 
1866 Note supposed burrows of worms in the Laurentain rocks of 
Canada. Quart. Jour. Geol. Soc. London 22: 608-609. 
1890 On burrows and tracks of invertebrate animals in Paleozoic rocks 
and other markings. Quart. Jour. Geol. Soc. London 46: 595-618. 
1896 Note on Cryptozoon and other ancient fossils. Can. Rec. Sci. 7: 
203-219. 
1896 Pre-Cambrian fossils. Geol. Mag. (London), n.s. 4(3): 513-514. 
Deflandre, G. 
1932 Note sur les Archaeomonadacées. Bull. Soc. Bot. France, Extr. 
79: 346-355. 
1933. Seconde note surles Archaeomonadacées. Bull. Soc. Bot. France, 
Extr. 80: 79-90. 
1938 Troisieme note sur les Archaeomonadacees. Bull. Soc. Bot. 
France, Extr. 81: 73-88. 
1950 Les soi-disant radiolaires du Précambrien de Bretagne et la ques- 
tion de l’existence de radiolaires embryonnaires fossiles. Bull. 
Soc. Zool. France 74: 351-352. 
1955 Palaeocryptidium n. gen. cayeuxi Nn. Sp., microorganismes incer- 
tae sedis des phtanites breoveriéns bretons. C.R. Soc. géol. 
France, pp. 182-185. 
1957 Remarques sur deux genres de Protistes du Précambrien (Arnoldia 
Hovasse 1956, Cayeuxipora Graindor 1957). C.R. Acad. Sci. 
(Paris) 244(21): 2640-2641. 
1968  Surl’existence, dés le Préecambrien, d’ Acritarches du type Acan- 
thomorphitae: Eomicrhystridium nov. gen. Typification du genre 
Palaeocryptidium Defl. 1955. C.R. Acad. Sci. (Paris) 266: 2385- 
2389. 
De la Hunty, L. 
1964. Balfour Downs, W.A. Explan. Notes Geol. Surv. W. Aust. l: 
250,000 Geol. Ser., Sheet SF/S1-9, 23 pp. 
1967. Explanatory notes on the Robertson 1:250,000 geological sheet, 
Western Australia. Rep. Geol. Surv. W. Australia 4: 36 pp. 
83 
