Viswanathiah, M.N. and B.V. Rajulu 
1963. Occurrence of stromatolitic limestones near Rayalcheruvu Anan- 
tapur District (Andhra Pradesh). Sci. and Cult. India 29: 510-511. 
1964  Stromatolitic limestone in the Lower Kaladgis (Precambrian) My- 
sore State. Bull. Geol. Soc. India 1; 25-27. 
Viswanathiah, M.N. and A.N. Rao 
1967. Algal stromatolites from Cuddapah formations near Mutssukota, 
Ananthapur District (A.P.), India. Indian Mineralogist 5(1 and 2): 
62-65. 
Viswanathiah, M.N. and J.C.V. Sastri 
1973. High phosphorous stromatolitic limestones from Nandini, Drug 
District, Madhya Pradesh, India. Curr. Sci., Bangalore 42(21): 
738-741. 
Viswanathiah, M.N. and T.R. Sreedhara Murthy 
1972 Occurrence of algal stromatolites from lower Kaladgi limestones 
(Precambrian) near Nidgundi, Bijapur district, Mysore State. 
Curr. Sci., Bangalore 41(5): 171-172. 
Viswanathiah, M., V. Venkatachalapathy, and A. Mahalakshmamina 
1975. Microorganisms from the Kaladgi Basin, South India and their 
stratigraphic significance. Jour. Geol. Soc. India 16(2): 199-208. 
Vladimirskaya, E.V. 
1955. Dodevonskie otlozheniya Kolvo-Visherskogo Kraya. Trudy 
VNIGRI, nov. ser., v.v.p. 90. 
Vlasov, F. Ya 
1965 Morfologiya stromatolitov satkinskoi svitya Yuzhnogo Urala (in 
Russian). In Vses. simpozium po paleontol. dokembriya i ranne go 
kembriya, Tezisy dokl. Novosibirsk, pp. 24-25. 
1970  Anatomiya: morfologiya stromatolitov rannego i srednego pro- 
terozoya yuzhnogo Urala (Anatomy and morphology of stromato- 
lites of the early and middle Proterozoic of the southern Ural). In 
Materialy po paleontol. Urala, Sverdlovsk, pp. 152-175. 
Voitkevich, G.V. and L.S. Belokrys 
1960 Sledy drevnei zhizni na zemle (in Russian, English summ.). Sov. 
Geol. 4; 3-22. 
Volkheimer, W. 
1963 Geologic observations in the area of Ingeniero Jacobacci and sur- 
roundings, Rio Negro, Argentina (in Spanish). Assoc. Geol. Ar- 
gent., Rev. 28(1): 13-36. 
Volkova, N.A. 
1962. Precambrian spores from the Dniester region. Akad. Nauk SSSR, 
Dokl. 142(4): 893-895 
1965 Nature and classification of microfossils of plant origin from the 
Precambrian and lower Paleozoic. Paleont. Zhur. 1: 13-25. 
1968 Akritarkhi dokembriiskikh i nizhnekembriiskikh otlozhenii estonii 
(in Russian). In Problematiki pogranichnykh sloev rifeye i kem- 
briya Russkoi platformy, Urala i Kazakhstana, Trudy GIN Akad. 
Nauk SSSR 188: 8-36. 
1973. Acritarchs in the correlation of the Vendian and Cambrian of the 
Western Russian Platform (in Russian). Sov. Geol. 4: 48-62. 
1976 On the discovery of Precambrian spore with tetrahedral scars. In 
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