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Pande, A. C.
- Ediacaran Biota from the Jarashi (Middle Krol) and Mahi (Lower Krol) Formations, Krol Group, Lesser Himalaya, India
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Authors
Affiliations
1 B-5, Sector K, Aliganj, Lucknow 226 024, IN
2 Geological Survey of India, Lucknow, IN
3 Geological Survey of India, Shillong, IN
1 B-5, Sector K, Aliganj, Lucknow 226 024, IN
2 Geological Survey of India, Lucknow, IN
3 Geological Survey of India, Shillong, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 63, No 6 (2004), Pagination: 649-654Abstract
The Ediacaran biota is already known from the Kaurryala Formation (Upper Krol) of Krol Group, Lesser Himalaya, India. The present work records the Ediacaran biota from the underlying Jarashi (Middle Krol=Krol B) and Mahi (Lower Krol=Krol A) Formations. The biota occurs in the intercalated shale-Siltstone sequence deposited in a tidal flat environment. The biota from the Jarashi Formation includes soft-Bodied rmetazoans - Pteridinium sp cf P carolinaense(St Jean) and Charniodiscus sp cf C arboreus Glaessner. The biota of Mahi Formation is represented by Nimbia sp cf N occlusa Fedonkin. In the light of already known Ediacaran biota from the Kauriyala Formation (Upper Krol), this find extends the stratigraphic range of Ediacaran biota in the Krol Belt downward. The present biota is comparable with Late Neoproterozoic Ediacaran biota of Russian Platform, South Australia, Namibia, North Carolina and Canada N occlusa Fedonkin has also been recorded from the Cambrian rocks of Arctic Norway and Ireland.Keywords
Ediacaran Biota, Krol Group, Jarashi Formation, Mahi Formation, Lesser Himalaya.- Discovery of Early Permian Palynomorphs from the Manjir Formation, Chamba District, Himachal Pradesh
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Authors
Affiliations
1 Geological Survey of India, Lucknow, IN
2 Birbal Sahni Institute of Palaeobotany, 53, University Road, Lucknow, IN
1 Geological Survey of India, Lucknow, IN
2 Birbal Sahni Institute of Palaeobotany, 53, University Road, Lucknow, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 63, No 6 (2004), Pagination: 665-669Abstract
Palynological study has revealed the presence of Early Permian palynomorphs in Manjir Formation of Chamba Valley. Palynomorph taxa identified in the assemblage include Parasaccites, Plicatipollenites, Barakarites, Scheuringipollenites, Striatopodocarpites, Faumpollenites, Striatites and Platysaccus. These taxa show affinities with those found in Lower Gondwana (Early Permian) sediments of Indian sub-Continent.- Late Precambrian-Early Cambrian Trace Fossils from Tethyan Himalaya, Bhutan and their Bearing on the Precambrian-Cambrian Boundary
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Authors
Affiliations
1 Geological Survey of India, 3, Sector 33, Chandigarh - 160 020, IN
2 103, Sector 7, Panchkula - 160 018, IN
3 Geological Survey of India, Aliganj Extension, Lucknow- 226 001, IN
1 Geological Survey of India, 3, Sector 33, Chandigarh - 160 020, IN
2 103, Sector 7, Panchkula - 160 018, IN
3 Geological Survey of India, Aliganj Extension, Lucknow- 226 001, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 62, No 6 (2003), Pagination: 708-716Abstract
Ichnofossils Arenicolites, Didymaulichnus, Gordia, Helminthopsis, Monomorphichnus, Phycodes pedum and Planolites A, B and C are described from the Late Precambrian -Middle Cambrian Pele La Group exposed in the Tang chu - Wachi La sector of the Bhutan Himalaya. The Precambrian-Cambrian boundary in this section is tentatively placed below the Phycodes pedumlevel, in the middle part of the Maneting Formation.The volcanics of the Singhi Formation, occurring at the base of the Pele La Group represent an important Neoproterozoic event.