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Nath, Shambhu
- Occurrence of Neoproterozoic Animal Embryos in the Chambaghat formation of Himachal Lesser Himalaya, India
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Authors
Affiliations
1 Geological Survey of India, Central Head Quarters, Kolkata 700 016, IN
2 Geological Survey of India, Northern Region, Lucknow 226 024, IN
3 Geological Survey of India, Northern Region, Lucknow 226 024, US
4 Virginia Polytechnic Institute and State University, Department of Geoscience, Blacksburg VA 24061, US
1 Geological Survey of India, Central Head Quarters, Kolkata 700 016, IN
2 Geological Survey of India, Northern Region, Lucknow 226 024, IN
3 Geological Survey of India, Northern Region, Lucknow 226 024, US
4 Virginia Polytechnic Institute and State University, Department of Geoscience, Blacksburg VA 24061, US
Source
Current Science, Vol 106, No 6 (2014), Pagination: 813-815Abstract
No Abstract.
Full Text
- Discovery of Animal Eggs and Embryos from the Ediacaran (Terminal Proterozoic) Chambaghat Formation, Krol Group, Himachal Lesser Himalaya
Abstract Views :235 |
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Authors
Affiliations
1 Palaeontology Division, Geological Survey of India, Sector-E, Aliganj, Lucknow - 226 024, IN
1 Palaeontology Division, Geological Survey of India, Sector-E, Aliganj, Lucknow - 226 024, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 74, No 4 (2009), Pagination: 498-502Abstract
The globular to suboval microfossils with distinctively ornamented outer coverings interpreted as animal eggs and embryos have been discovered from the black phosphatic chert lentils of the Ediacaran (Terminal Proterozoic) Chambaghat Formation (Krol sandstone), Krol Group, Himachal Lesser Himalaya, India. Similar animal eggs and embryos have earlier been recorded only from the phosphorites of the uppermost Neoproterozoic Doushantuo Formation (Ca. 570±20 Ma) exposed at Weng'an, South China. Present record of eggs and embryos is comparable with extant eggs and embryos of cnidarians and bilaterians like molluscs, annelids and arthropods. The eggs and embryos from the Terminal Proterozoic rocks of India are the only one recorded from the equivalent stratigraphic horizon outside China. This discovery of eggs and embryos adds to the understanding the evolutionary trends in the Proterozoic metazoan life.Keywords
Eggs, Embryos, Ediacaran, Proterozoic, Krol Group, Himachal Lesser Himalaya.
References
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