Morphological observations on some spores and pollen grains from the Palaeocene subsurface assemblages of Garo Hills, Meghalaya

R.Y. Singh; H.P. Singh

doi:10.54991/jop.1976.1034

Authors

R.Y. Singh Birbal Sahni Institute of Palaeobotany, 53, University Road, Lucknow 226007, India
H.P. Singh Birbal Sahni Institute of Palaeobotany, 53, University Road, Lucknow 226007, India

DOI:

https://doi.org/10.54991/jop.1976.1034

Abstract

The present paper deals with the morphological observations on some spores and pollen grains recovered from the Nongwalbibra Palaeocene subsurface assemblages of Garo Hills, Meghalaya. One new genus Gurotriletes gen. nov., and 3 new species, viz., G. assamicus sp. nov., G. incompositus sp. nov., and Paleosantalaceaepites giganticus sp. nov. have been described and illustrated. Critical comments On the morphology of some other palynomorphs have also been made. Geology of the area has been briefly reviewed and stratigraphical significance of the previously described assemblages commented upon.

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References

Baksi SK 1962. Palynological investigation of Simsang River Tertiaries, South Shillong Front, Assam. Bull. geol. min. metall. Soc. India, 26: 1-26.

Balme BE 1957. Spores and pollen grains from the Mesozoic of Western Australia. C.S. 1.R.O. Aust. Coal Res. Section T.C., 25: 1-48.

Banerjee D 1964. A note on polospores from Tura Formation, Simsang River Section, Assam. Bull. geol. min. metall. Soc. India, 32: 1-4.

Biswas B 1962. Stratigraphy of the Mahadeo, Langpar, Cherra and Tura formations, Assam, India. Bull. geol. min. metall. Soc. India, 25: 1-48.

Dettmann ME 1963. Upper Mesozoic micro- floras from South-eastern Australia. Proc. R. Soc. Vict., 77 (1): 1-148.

Dutta SK & Sah SCD 1970. Palynostratigraphy of the Tertiary sedimentary formations of Assam-5. Stratigraphy and palynology of South Shillong Plateau. Palaeontographica, 131B: 1-72.

Evans P 1932. Explanatory notes to accompany a table showing the Tertiary succession in Assam. Trans. Min. geol. metall. Inst. India, 27 (3): 155-260.

Fox CS 1936. In L. L. FERMOR Director's General Report for 1934. Rec. geol. Surv. India, 69: 82-84.

Fox CS 1937. In A. M. HERON Director's General Report. Rec. geol. Surv. India, 72: 85-90.

Fox CS 1938. Director's General Report. Rec. geol. Surv. India, 73: 75-80.

Ghosh AMN 1954. The Tura Sandstone stage of the Garo Hills: its possible stratigraphical position. Rec. geol. Surv. India, 83 (2): 423- 444.

Ghosh TK 1969. Early Tertiary plant microfossils from the Garo Hills, Assam, India. Sen Mem. Vol.,: 123-137.

Hammen Th. Van Der 1956. Description of some genera of fossil pollen and spores. Boln geol., Bogota, 4 (2/3): 111-117.

Jacob K 1949. Director's General Report for 1948. Rec. geol. Surv. India, 82 (1): 22.

Krishnan MS 1966. Geology of India and Burma. Madras, pp. 1-604.

Latouche THD 1882. Daranggiri Coalfield, Garo Hills, Assam. Rec. geol. Surv. India, 15: 175.

Latouche THD 1887. Notes on the geology of the Garo Hills. Rec. geol. Surv. India, 20: 40-48.

Medlicott HB 1874. Coal in Garo Hills. Rec. geol. Surv. India, 7 (2): 58-62.

Medlicott HB & Blanford WT 1893. Manual of the Geology of India: 328.

Oldham T 1863. On the occurrence of rocks of Upper Cretaceous age in eastern Bengal. Q. J geol. Soc. Lond., 19 (1): 524-526.

Potonie R 1956. Synopsis der Gattungen der Sporae dispersae Teil 1. Beih. geol. Jb., 23: 1-103.

Potonie R 1958.Synopsis der Gattungen der Sporae dispersae. Beih. geol. Jb., 31: 1-114.

Potonie R 1960. Synopsis der Gattungen der Sporae dispersae III. Teil: Nachtrage Sporites, Fortsetzung Pollenites mit generalregister zu Teil I-III. Beih. geol. Jb., 39: 1-189.

Potonie R & Kremp G 1954. Die Gattungen der palaozoischen Sporae dispersae und ihre Stratigraphie. Beih. geol. Jb., 69: 111-194.

Pascoe EH 1963. A Manual of Geology of India and Burma. Calcutta, 3: 1325-2130.

Pinfold ES 1919. Two new fossil localities on the Garo Hills. Rec. geol. Surv. India., 1 (2): 86.

Quddus R 1963. The stratigraphical position of the Tura Sandstone. Eastern Himalayan Geo- logy, Seminar: 1-5.

Ramanujam CGK 1966. Palynology of the Miocene Lignite from South Arkot District, Madras, India. Pollen Spores, 8: 149-203.

Sah SCD & Dutta SK 1966. Palynostratigraphy of the sedimentary formations of Assam-1. Stratigraphical position of Cherra Formation. The Palaeobotanist 15 (1-2): 72-86. https://doi.org/10.54991/jop.1966.750

Sah SCD & Kar RK 1974. Palynology of Tertiary sediments of Palana, Rajasthan. The Palaeobotanist 21 (2): 163-188. https://doi.org/10.54991/jop.1972.1479

Sah SCD, Kar RK & Singh RY 1971. Stratigraphic range of Dandotiaspora gen. nov. in the Lower Eocene sediments of India. Geophytology, 1 (1): 54-63.

Sah SCD & Singh RY 1974. Palynological biostratigraphy of the Tura Formation. Stratigraphical Palynology. Birbal Sahni Institute of Palaeobotany, Lucknow: 76-78.

Samanta BK 1960. Assilina from the Eocene rocks of Garo Hills. Bull. min. metall. Soc. India, 27: 1-25.

Singh HP, Singh RY & Sah SCD 1976. Palynostratigraphic correlation of the Palaeocene subsurface assemblages from Garo Hills, Meghalaya. J. Palynol., 11 (1/2): 43-64.

Singh RY 1975. Morphological study of the Retialetes complex from Indian Tertiaries. Geophytology, 5 (1): 98-104.

Thiergart F 1938. Die Pollenflora der Niederlausitzer Braunkohle besonders in Profile der Grube Berlin Marga bei Seftenberg. Jb. preuss. Geol., 58: 282-351.

Thomson PW & Pflug H 1953. Pollen und Spores des Mitteleuropäischen Tertiärs. Palaeontographica, 94B: 1-138.