Further contributions to the study of the Qubu Flora from southern Xizang (Tibet)
DOI:
https://doi.org/10.54991/jop.1995.1200Keywords:
Palaeobotany, Glossopteris Flora, Permian, Xizang (Tibet)Abstract
The taxonomy of Glossopteris species occurring in the Qubu Formation is reviewed; G. xizangensis is proposed. Samaropsis xizangensis is proposed for seeds found attached to G. xizangensis. An affiliation with the Glossopteris flora of the Mamal Formation, Kashmir appears valid although the number of distinctive species in common is reduced to Glossopteris dingriensis.
Aspects of sporophyte taxa are reviewed in the light of doubts concerning affiliations proposed previously. Additional specimens are needed before problems can be resolved concerning species of Sphenophyllum or Trizygia, Austroannularia, Cladophlebis and Pecopteris. Scale leaf remains have not been named.
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Banerjee M 1991. Glossopterid leaves, fertile organs, their earliest occurrence, distribution in time and space and remarks on environment. In Ulbrich H & Rocha-Campos AC (Editors) - Gondwana Seven Proceedings. Instituto de Geociencias, Universidade de Sao Paulo: 483-502.
Banerjee M, Basu M, Haldar A & Hait A 1991. In situ Glossopteris plant with branched stems and spreading roots from Saharjuri Coalfield. Indian Lower Gondwana, Indian Biol. 22(2):1-7.
Chandra S & Surange KR 1979. Revision of the Indian species of Glossopteris Monograph 2. Birbal Sahni Institute of Palaeobotany, Lucknow.
Chandra S & Tewari R 1991. A catalogue of fossil plants from India-Part 2. Palaeozoic and Mesozoic megafossils. Birbal Sahni Institute of Palaeobotany, Lucknow.
Hsu Jen 1973. On the discovery of some plant fossils from the Mt Jolmo Lungma region, southern Tibet, and its significance. Acta bot. sin. 15(2): 254-258. (Chinese, English summary).
Hsu Jen 1975. Discovery of Glossopteris Flora in southern Tibet and its significance to geology and palaeogeography. In: A report of the scientific expedition in the Mount Jolmo Lungma region: 77-78. Science Press, Beijing (Chinese).
Hsu Jen 1976. On the discovery of a Glossopteris Flora in southern Xizang and its significance in geology and palaeogeography. Sci. geol. sin. 1976(4): 323-332, pls I-IV. (Chinese, English summary).
Hsu Jen, Rigby J & Duan Shy 1990. Revision of Glossopteris Flora from southern Xizang. Sci. Geol. Sin. 1990 (3): 233-242 (Chinese, English summary).
Lakhanpal RN, Maheshwari HK & Awasthi N 1976. A catalogue of Indian fossil plants. Birbal Sahni Institute of Palaeobotany, Lucknow.
Li X-x 1983. Notes on three new species of the Glossopteris from the Qubu Formation, Southern Xizang (Tibet), with discussion on the age of the Formation. Acta Palaeont, sin. 22(2): 130-138.
Li X-x, Rigby J & Wu Ymm 1991. A biostratigraphical comparison between Lower Gondwana floras of southern Xizang (Tibet) and Kashmir. In: Ulbrich H & Rocha-Campos AC (Editors) - Gondwana Seven Proceedings: 533-538. Instituto de Geociencias, Universidade de Sao Paulo.
Li X-x & Wu X-y 1994. The Cathaysian and Gondwana floras: Their contribution to determining the boundary between eastern Gondwana and Laurasia. J. Southeast Asian Earth Sci. 9(4): 304-317.
Li X-x & Wu Y-m & Fu Z-b 1985. Preliminary study on a mixed Permian. flora from Xiagangian of Gerze District, Xizang and its palacobiogeographic significance. Acta palaeont. sin. 24(2): 150-170 (Chinese, English summary).
Maithy PK 1974. A revision of the Lower Gondwana Sphenopteris from India. Palaeobotanist 21(1): 70-80.
Mercier JL & Li G-c (Editors) - 1984. Mission Franco-Chinoise au Tibet 1980. Centre National de la Recherche Scientifique, Paris.
Pant DD, Nautiyal DD & Tiwari SP 1985. On some Indian Lower Gondwana compressions of seeds. Palaeontographica 196B: 31-78.
Rigby JF 1989. Austroannularia gen. nov., an asymmetrical Permian sphenopsid leaf whorl from Gondwanaland. Palaeobotanist 37(2): 189- 191.
Srivastava AK 1992. Plant fossil assemblages from the Barakar Formation of Raniganj Coalfield, India. Palaeobotanist. 39(3): 281-302.
Surange KR & Chandra S 1973. Partha - a new type of female fructification from the Lower Gondwana of India. Palaeobotanist 20(3): 356-360.
Surange KR & Chandra S 1974. Some male fructifications of Glossopteridales. Palaeobotanist 21(2): 255-266.
Wang Y-g, Sun D-1 & He G-x 1984. Southern region of Tethys-Himalaya. In Chapter I. Himalaya Province. Xizang Deceng (Stratigraphy of Tibet): 14-101. Science Press, Beijing (Chinese).
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