Floral diversity and implications in palaeoenvironment of Vemavaram Formation (Krishna Depression), Krishna-Godavari Basin, Andhra Pradesh, India

Ch. Chinnappa; A. Rajanikanth; Y.V. Rao

doi:10.54991/jop.2014.321

Authors

Ch. Chinnappa Birbal Sahni Institute of Palaeobotany, 53 University Road, Lucknow 226007, India
A. Rajanikanth Birbal Sahni Institute of Palaeobotany, 53 University Road, Lucknow 226007, India
Y.V. Rao Department of Botany, Andhra University, Visakhapatnam 530003, Andhra Pradesh, India

DOI:

https://doi.org/10.54991/jop.2014.321

Keywords:

East Coast, Early Cretaceous, Vemavaram, Krishna–Godavari, Palaeoenvironment

Abstract

The present study deals with the plant megafossil assemblage and associated environment of the Vemavaram Formation (Krishna Depression), Krishna–Godavari Basin, Andhra Pradesh, India. The plant fossils are collected from Vemavaram (currently known as Ommevaram), Prakasam District, Andhra Pradesh. Sixteen taxa are recognised including four new species, namely Dictyozamites ommevaramensis, Ptilophyllum heterophylla, Pagiophyllum ommevaramensis and Elatocladus loyolii alongwith twelve known species. The Early Cretaceous flora from the Vemavaram Formation is compiled and compared with the floras of Budavada Formation (Krishna Depression), Golapalli and Raghavapuram formations (Godavari Depression). The floral components of the two depressions are broadly similar and together can be referred as Krishna–Godavari basinal flora. The associated environments are reconstructed by taking into account evidences from micro–flora–pollen and spores, phytoplankton and also foraminifera.

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References

Anderson JM & Anderson HM 1985. Palaeoflora of southern Africa. Prodromus of Southern Africa megafloras, Devonian to Lower Cretaceous. A.A. Balkema, Rotterdam. 423 p.

Anderson JM & Anderson HM 1989. Palaeoflora of southern Africa. Molteno Formation (Triassic) Volume 2 Gymnosperms (excluding Dicrodium). A.A. Balkema, Rotterdam. 567 p.

Arber EAN 1917. The earlier Mesozoic flora of New Zealand. New Zealand Geological Survey. Palaeontological Bulletin 6: 1–80.

Arrondo OG & Petriela B 1980. Alicurá, nueva localidad plantfera liásico de la provincial de Neuquén, Argentina. Ameghiniana 17: 200–215.

Arun Kumar 1986. A sequence of Dinocysts from the subsurface sediments (Valangian–Hauterivian) of the Krishna–Godavari Basin, India. Journal of Palaeontological Society of India 31: 26–38.

Bancroft N 1913. On some Indian Jurassic Gymnosperms. Transactions of the Linnean Society of London 8: 69–86.

Barnard PDW & Miller JC 1976. Flora of the Shemshak Formation (Elbur 2 Iran). Part 3, Middle Jurassic (Dogger) plants from Katumbargah, Vasek Gah and Imam Manak. Palaeontographica 155B: 31–117.

Borkar VD & Chiplonkar GW 1973. New plant fossils from the Umia of Saurashtra. Palaeobotanist 20: 269–279.

Bose MN 1974. The genus Otozamites Braun from the Mesozoic rocks of India. Palaeontographica 147B: 100–106.

Bose MN & Banerji J 1984. The fossil flora of Kutch. I–Mesozoic megafossils. Palaeobotanist 33: 1–189.

Bose MN & Bano Z 1978. The genus Dictyozamites Oldham from India. Palaeobotanist 25: 79–99.

Bose MN & Jain KP 1967. Otozamites vemavaramensis sp. nov. from the Upper Gondwana of the East Coast of India. Palaeobotanist 15: 314–315.

Bose MN & Kasat ML 1972. The genus Ptilophyllum in India. Palaeobotanist 19: 115–145.

Bose MN & Maheshwari HK 1973. Brachyphyllum sehoraensis a new species from Sehora, Narsinghpur District, Madhya Pradesh. Geophytology 3: 121–125.

Bose MN & Sukh–Dev 1971. Three new species of Pagiophyllum from Bansa, Madhya Pradesh, India. Geophytology 1: 116–126.

Brongniart AT 1828. Prodrome d‘une histoire des végétaux fossils. In Dictionnaire des Sciences Naturelles 57: 16–212.

Cantrill DJ & Falcon–Lang HJ 2001. Cretaceous (late Albian) coniferales of Alexander Island, Antarctica. 2. Leaves, reproductive structures and roots. Review of Palaeobotany and Palynology 115: 119–145.

Feistmantel O 1876. Flora of the Jabalpur Group (Upper Gondwanas), in the Son–Narmada region. Memoirs of the Geological Survey of India, Palaeontologia indica series 11, 2: 81–105.

Feistmantel O 1879. The fossil flora of Upper Gondwanas, Outliers on the Madras Coast. Memoirs of the Geological Survey of India, Palaeontologia indica series 2, 1: 191–224.

Florin R 1958. On the Jurassic taxads and conifers from North–Western Europe and eastern Greenland. Acta Horti Bergiana 17: 257–402.

Foote RB 1879. Geological structure of the Eastern Coast from Lat. 15° N. to Masulipatam. Memoirs of the Geological Survey of India 16: 1–66.

Gee CT 1989. Revision of the Late Jurassic/Early Cretaceous flora from Hope Bay, Antarctica. Palaeontographica B213: 149–214.

Gupta KM & Sharma BD 1968. Investigation on the Jurassic flora of the Rajmahal Hills, India. 1. On the Bennettitalean genus Dictyozamites, with description of D. sahnii sp. nov. Journal of Palaeontological Society of India 5–9: 21–28.

Halle TG 1913. The Mesozoic flora of Graham Land. Wissenschaftliche Ergebnisse der Schwedischen Sudpolar–Expedition 3: 1–122.

Harris TM 1969. The Yorkshire Jurassic Flora. III. Bennettitales. British Museum of Natural History, London. 86 p.

Harris TM 1979. The Yorkshire Jurassic Flora V. Coniferales. British Museum of Natural History, London. 166 p.

Heer O 1881. Contributions á la flora fossile du Portugal. Çommunicacoes Trabalhos Servicio Geologia Portugal 4: 1–51.

Jacob K & Jacob C 1954. Cuticular study of Indian Ptilophyllum fronds from Kutch and Jabalpur. Memoirs of the Geological Survey of India, Palaeontologia indica n. series 33: 1–34.

Jain KP 1968. Some plant remains from the Upper Gondwana of East Coast, India. Palaeobotanist 16: 151–154.

Kar RK & Sah SCD 1970. Palynological investigation of the Gondwana outcrop from Vemavaram with remarks on the age of the beds. Palaeobotanist 18: 103–117.

Kimura T & Ohana T 1987. Middle Jurassic and some Late Liassic plants from the Toyera Group, Southwest Japan (II). Bulletin of the National Science Museum, Tokyo, Series C, 13: 151–185.

Kimura T & Ohana T 1988. Late Jurassic plants from the Tochikubo Formation (Oxfordian), Somanakamura Group, in the Outer Zone of Northeast Japan. II. Bulletin of the National Science Museum, Tokyo, Series C, 14: 151–185.

Kimura T & Sekido S 1976. Dictyozamites and some other cycadophytes from the early Lower Cretaceous Oguchi Formation. The Itoshiro Group, Central Honshu, Japan. Transactions and proceedings of the Palaeontological Society of Japan 101: 291–312.

Kimura T, Okubo A & Miyahashi H 1991. Cuticular study of Ptilophyllum leaves from the Lower Cretaceous Choshi Group in the outer zone of Japan. Bulletin of the National Science Museum, Tokyo, Series C, 17: 129–152.

Longobucco MI, Azcuy CL & Aguirre Urreta B 1985. Plants de la Formación Kachaike, Cretácico de la Provincia de Santa Cruz. Ameghiniana 21: 305–315.

Mahabale TS & Satyanarayana T 1979. Upper Gondwana plant fossils from east Godavari District in Andhra Pradesh, India. Geophytology 9: 65–82.

Maheshwari HK & Kumaran KPN 1976. Some new conifer remains from the Jabalpur Group. Palaeobotanist 23: 30–39.

McLoughlin S 1996. Early Cretaceous macrofloras of Western Australia. Records of Western Australia Museum 18: 19–65.

McLoughlin S & Pott C 2009. The Jurassic flora of Western Australia. GFF 131: 113–136.

McLoughlin S, Carpenter RJ & Pott C 2011. Ptilophyllum muelleri (Ettingsh.) comb. nov. from the Oligocene of Australia: Last of the Bennettitales?. International Journal of Plant Sciences 172: 574–585.

Miller CN & Lapasha CA 1985. Two species of Elatocladus from the early Cretaceous Potomac Group of Virginia. Review of Palaeobotany and Palynology 44: 183–191.

Oldham T & Morris J 1863. Fossil flora of Rajmahal Series in the Rajmahal Hills, Bengal. Memoirs of the Geological Survey of India, Palaeontologia indica series 2, 1: 1–52.

Oishi S 1936. On the Japanese species of Dictyozamites. Japanese Journal of Geology and Geography 13: 25–30.

Pandya N, Srivastava VB & Sukh–Dev 1990. A new conifer fossil from Vemavaram (Early Cretaceous), Andhra Pradesh, India. Geophytology 20: 74.

Ramanujam CJK 1957. Microfossils from carbonaceous shale near Vemavaram (Jurassic) in the East Coast Gondwanas of India. Journal of Indian Botanical Society 36: 181–197.

Sahni B 1928. Revisions of Indian fossil plants Pt. 1 Coniferales (a. impresiions & incrustations). Memoirs of the Geological Survey of India, Palaeontologia indica n. series 11: 1–49.

Sahni B 1931. Revision of Indian fossil plants: Parts II–Coniferales (b. Petrifications). Memoirs of the Geological Survey of India, Palaeontologia indica n. series 11: 51–124.

Sastri VV, Sinha RN, Singh G & Murthy KVS 1973. Stratigraphy and tectonics of the sedimentary basins on East Coast of Peninsular India. American Association of Petroleum Geology Bulletin 574: 655–678.

Seward AC 1919. Fossil plants. A text book for students of botany and geology, III. Cambridge University Press, Cambridge. 656p.

Seward AC & Sahni B 1920. Indian Gondwana plants: a revision. Memoirs of the Geological Survey of India, Palaeontologia indica n. series 7: 1–41.

Spath LF 1933. Revision of the Cephalopod fauna of Cutch. Memoirs of the Geological Survey of India, Palaeontologia indica n. series 9: 659–945.

Spicer R 1991. Plant taphonomic processes. In: Allison PA & Briggs DEG (Editors)—Taphonomy releasing the data locked in the fossil record, Volume 9 Topics in Palaeobotany. Plenum Press, New York: 74–111.

Srivastava GK, Nautiyal DD & Pant DD 1984. Some coniferous shoots from Bansa beds of the Jabalpur Formation (Lower Cretaceous). Palaeontographica 194B: 131–150.

Sukh–Dev & Rajanikanth A 1988. The Gangapur: Fossil flora and Stratigraphy. Geophytology 18: 1–27.

Suryanarayana K 1954. Fossil plants from the Jurassic rocks of the Madras Coast, India. Palaeobotanist 4: 87–90.

Vagyani BA 1984. On the occurrence of Desmiophyllum indicum Sahni from Vemavaram: In: Tiwari RS et al. (Editors)—Proceedings of 5th Indian Geophytological Conference, Palaeobotanical Society, Lucknow: 362.

Vagyani BA 1985. Occurrence of Ginkgoites crassipes (Feistmantel) Seward from the Jurassic of Andhra Pradesh. Current Science 54: 705–706.

Vagyani BA & Jamane MR 1988. Genus Dictyozamites Oldham from Uppugunduru, Prakasam District, Andhra Pradesh. Geophytology 18: 87.

Vagyani BA & Zutting MP 1986. Occurrence of Pterophyllum distans Morris from Uppugunduru, Andhra Pradesh. Geophytology 16: 133.

Vakhrameev VA 1991. Jurassic and Cretaceous floras and climates of the Earth. Cambridge University Press, Cambridge: 318 p.

Vakhrameev VA, Dobruskina IA, Zaklinskaya YD & Meyen SV 1970. Paleozoic and Mesozoic floras of Eurasia and the Phytogeography of that period. Moscow, Nauka: 424 p. (In Russian)

Venkatachala BS & Sinha RN 1986. Stratigraphy, age and palaeoecology of Upper Gondwana equivalents of the Krishna–Godavari Basin, India. Palaeobotanist 35: 22–31.

Vishnu–Mittre 1957. Studies on the fossil flora of Nipania, Rajmahal Series, India–Bennettitales. Palaeobotanist 5: 95–99.

Watson J & Sincock CA 1992. Bennettitales of the English Wealden. Monograph of the Palaeontographical Society London: 228 p.

White ME 1981. Revision of the Talbragar fish bed flora (Jurassic) of New South Wales. Records of the Australian Museum 33: 695–721.