Artificial chemical degradation of some extant cyanobacteria with special reference to Precambrian contaminants- A cautionary note-II

Authors

  • Manoj Shukla Birbal Sahni Institute of Palaeobotany, 53, University Road, Lucknow 226007, India
  • P.K. Misra Department of Botany, Lucknow University, Lucknow 226007, India
  • Mukund Sharma Birbal Sahni Institute of Palaeobotany, 53, University Road, Lucknow 226007, India

DOI:

https://doi.org/10.54991/jop.1990.1698

Keywords:

Palaeobiology, Microfossils, Cyanobacteria, Precambrian

Abstract

The paper is a cautionary note to all Precambrian palaeobiologists, using palaeopalynological techniques for the extraction of microfossils from Precambrian sediments. It deals with problems of contamination in palaeopalynological preparations. The effect of mineralic acids (HCI and HF) on some common cyanobacteria, viz., Microcystis, Nostoc, Oscillatoria, Lyngbya and Scytonema, has been discussed. It has been shown that the extant cyanobacteria after treatment with these mineralic acids show morphological similarities with many Precambrian microfossils. Therefore, there is a need to exercise more vigil while ascertaining the authenticity and affinity of the microfossils recovered through palaeopalynological techniques specially from Precambrian sediments.

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Published

1990-12-31

How to Cite

Shukla, M., Misra, P., & Sharma, M. (1990). Artificial chemical degradation of some extant cyanobacteria with special reference to Precambrian contaminants- A cautionary note-II. Journal of Palaeosciences, 39((1-3), 327–332. https://doi.org/10.54991/jop.1990.1698

Issue

Section

Research Articles

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