Fructifications of glossopteridae from India.

Authors

  • K.R. Surange Birbal Sahni Institute of Palaeobotany, 53, University Road, Lucknow 226007, India
  • Shaila Chandra Birbal Sahni Institute of Palaeobotany, 53, University Road, Lucknow 226007, India

DOI:

https://doi.org/10.54991/jop.1972.1462

Abstract

Three new species of Scutum, one species of Cistella, and a new genus of one winged seed, Indocarpus, are described in this paper. Scutum sahnii has been found attached to a leaf with venation of Glossopteris longicaulis type. Scutum is interpreted as a gymnospermous female reproductive organ of some Glossopteris species consisting of a bilaterally symmetrical receptacle bearing a large number of naked ovules and covered on one side by a protective scale-leaf with Glossopteris type of venation. Both the scale-leaf and the ovule-bearing receptacle are carried on a common pedicel which, in its turn, is attached to the petiole of a Glossopteris leaf. Dictyopteridium is also shown to be a fructification similar in organization to Scutum, possessing a cylindrical ovule-bearing head and a scale leaf covering one side of the fructification. It is also suggested that some Cistella types of fructifications might be the seedless receptacles of Scutum.

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References

Bose MN 1966. A revision of Rajmahalia. Palaeobotanist. 14(1-3): 85-88. https://doi.org/10.54991/jop.1965.720.

Chatterjee S & Sen J 1963. A glossopteridean fructification from India. Nature. 200: 1124.

Maheshwari HK 1965. Studies in the Glossopteris flora of India-23. On two fructifications from the Raniganj Stage of the Raniganj coalfield, Bengal. Palaeobotanist. 13(2): 144-147. https://doi.org/10.54991/jop.1964.689

Mukherjee S, Banerjee M & Sen J 1966. Further Glossopteridean fructifications from India. Palaeontographica. 117B: 99-111.

Plumstead EP 1952. Description of two new genera and six new species of fructifications borne on Glossopteris leaves. Trans. Geol. soc. S. Africa. 55: 281-328.

Plumstead EP 1956. Bisexual fructifications borne on Glossopteris leaves from South Africa. Palaeontographica. 110B: 1-25.

Plumstead EP 1958a. On Ottokaria, the fructification of Gangamopteris and provisional classification based on them. Trans. Geol. soc. S. Africa. 61: 52-74.

Plumstead EP 1958b. Further fructifications of the Glossopteridae and provisional classification based on them. Trans. Geol. Soc. S. Africa. 61: 52-74.

Rigby JF 1972. The flora of the Kaloola member of the Baralaba Coal Measures, Central Queensland. Geol. Surv. Queensland. Publ. No.352, Palaeont. papers no. 26: 1-12.

Sen J 1955. On some fructifications borne on Glossopteris leaves. Bot. Notiser. 200: 1124.

Surange KR & Chandra, Shaila 1973. Dictyopteridium sporiferum Feistmantel – a female cone from the Lower Gondwana of India. Palaeobotanist. 20 (1): 127-136. https://doi.org/10.54991/jop.1971.890

Surange KR & Maheshwari Hari K 1970. Some male and female fructifications of Glossopteridales from India. Palaeontographica. 129B: 178-191.

Verma CP 1963. Glossopteris fructifications from Chintalpudi sandstone, South India. Curr. Sci. 32: 75-77.

Walkom AB 1922. Palaeozoic floras of Queensland. Part I. The flora of Lower and Upper Bowen Series. Publs. Geol. Surv. Qd. 270: 1-65.

Zeiller R 1902. Observation sur la quelque planetes fossilies des Lower Gondwana. Palaeont. indica. n.s. 2(1): 1-40.

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Published

1972-12-31

How to Cite

Surange, K., & Chandra, S. (1972). Fructifications of glossopteridae from India. Journal of Palaeosciences, 21((1-3), 1–17. https://doi.org/10.54991/jop.1972.1462

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