Journal of Geological Society of India (Online archive from Vol 1 to Vol 78)

Mathur, V. K.

• Trace Fossils from Cambrian Tal Formation, Himachal Lesser Himalaya, India, and their Stratigraphic Significance

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Authors

V. K. Mathur ¹, Ashutosh Joshi ¹, Gopendra Kumar ¹

Affiliations
1 Himalayan Geology Division, Geological Survey of India, Sector E, Aliganj, Lucknow 226 020, IN

Source

Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 31, No 5 (1988), Pagination: 467-475

Abstract

Two assemblages of ichnofossils are recorded from the Cambrian Tal Formation, Nigalidhar Syncline, Himachal Lesser Himalaya. The assemblage-I. occurring in the Arenaceous Member 300m below the horizon yielding redlichiid trilobite and brachiopod faunas of Tsanglangpuian Stage of Early Cambrian, contains forms like Rusophycus sp. aff. R. carinata Seilacher, monomorphichnus lineatus Crimes, Diplichnites spp.) Gordia sp., Astropolichon sp., ichnogenus A and ichnogenus B. The assemblage-II, in the Phulchatti Member ('Upper Tal'), includes Cruziana sp. and ichnogenus C cf. Buthotrephis. It occurs in sediments 70 m above the horizon containing trilobites and brachiopods. The former assemblage is of world-wide distribution in Lower Cambrian (upper Meishucunian to Lower Qiongzhusian), and thus, in the absence of microfauna, can be utilised in identifying Early Cambrian successions.

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• Discovery of Redlichid Trilobites from the Arenaceous Member of the Tal Formation, Garhwal Syncline, Lesser Himalaya, India

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Authors

Ashutosh Joshi ¹, V. K. Mathur ¹, D. K. Bhatt ¹

Affiliations
1 Geological Survey of India, IN

Source

Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 33, No 6 (1989), Pagination: 538-546

Abstract

The paper records the first find of identifiable redlichid trilobites, belonging to two genera, from the strata of the Arenaceous Member of the Tal Formation in the Garhwal Syncline. This fossil horizon in the Garhwal Syncline, in the past, has also yielded small shelly fossils. The chronostratigraphic designation of this small shelly fauna in the Qiongzhusian (? Atdabanian) Stage of China now stands corrected with the present discovery. The trilobite genera correspond to the Botomian Stage (1 Tsanglangpuian Stage of China), in the Early Cambrian.

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• Record of Redlichiid Trilobite from tbe Lower Cambrian Tal Formation, Mussoorie Syncline, Lesser Himalaya, India

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Authors

V. K. Mathur ¹, Ashutosh Joshi ¹

Affiliations
1 Himalayan Geology Division, Geological Survey of India, Lucknow 226020, IN

Source

Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 33, No 3 (1989), Pagination: 268-270

Abstract

This note records the presence of the Lower Cambrian trilobite Redlichia noetlingi and an unidentified trilobite in association with brachiopods from the basal part of the Phulchatti Member of the Tal Formation in the Mussoorie Syncline, Uttar Pradesh.

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• Ediacaran Medusoids from the Krol formation, Naini Tal Syncline, Lesser Himalaya

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Authors

V. K. Mathur ¹, Ravi Shanker ¹

Affiliations
1 Himalayan Geology Division, Geological Survey of India, Lucknow 226 020, IN

Source

Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 36, No 1 (1990), Pagination: 74-78

Abstract

Late Precambrian Ediacaran medusoid coelenterates, viz., Tirasiana sp., Medusinites sp, and Beltanella sp. are reported from the upper part of the Krol Formation in the Naini Tal Syncline, Lesser Himalaya in association with other Ediacaran fossils, viz., Beltanelliformis sp., Pteridinium sp, and Ichnogenus Gordia sp.

Keywords

Palaeontology, Krol Formation, Ediacaran Fauna, Naini Tal, Himalaya, Uttar Pradesh.

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• Systematics and Significance of Microbialite (Stromatolite) Stratifera undata from Mussoorie Syncline, Lesser Himalaya

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Authors

Mukund Sharma ¹, V. K. Mathur ², M. C. Srivastava ², Manoj Shukla ¹

Affiliations
1 Birbal Sahni Institute of Palaeobotany, 53, University Road, Lucknow 226007, IN
2 Geological Survey of India, Himalayan Geology Division, Aliganj, Lucknow, IN

Source

Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 43, No 6 (1994), Pagination: 705-712

Abstract

A microbialite morphospecies Stratifera undata has been recorded in the Blaini Formation of Mussoorie Syncline and is systematically described. It is inferred that this mat complex was deposited in an upper intertidal region in subtropical climate. The age of this microbialite morphospecies is suggested to be Upper Riphean/Lower Vendian.

Keywords

Stromatolite, Blaini Formation, Mussoorie, Vendian, Himalaya, Uttar Pradesh.

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• Additional Terminal Proterozoic Organic-Walled Microfossils from the Infra-krol formation, Nainital Syncline, Lesser Himalaya, Uttaranchal

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Authors

Manoj Shukla ¹, Rupendra Babu ¹, V. K. Mathur ², D. K. Srivastava ²

Affiliations
1 Birbal Sahni institute of Palaeobotany, Lucknow - 226 007, IN
2 Palaeontology Division, Geological Survey of India, Northern Region, Lucknow - 226 024, IN

Source

Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 65, No 2 (2005), Pagination: 197-210

Abstract

Black carbonaceous shale associated with black chert nodules of Infra Krol Formation, Baliana Group yielded diversified assemblage comprising 20 taxa of Organic-walled microfossils (OWM) represented by acritarchs and cyanobacterial remains. Out of these, 16 taxa are reported for the first time from this area which include five genera of acritarchs (sphaeromorphida subgroup) viz. Margominuscula simple, Granomarginata primiriva, Satka colonialica, Paracrassosphaera dedalea, Microconcentrica incrustata, and six genera (sphaerohystrichomorphida subgroup) viz. Baltisphaeridium perrarum, trachyhystrichosphaera vidalii, Gorgonisphaeridium maximum, Micrhystridium echintiatum, M. regulare, M. eatonensis, Archaeohystrichosphaeridium cellulare, A. semireliculatum,Germinosphaera unispinosa; four taxa of the cyanobacterial remains viz. Globophycus rugosum, Bavlinella faveolata, Eomicrocystis inalgica, Tetraphycus hebeiensis, Eophormidium orculiformis belong to Synaplomorphitae subgroup and single genus of VSM viz, Melanocyrillium hexodiadema.

The recovered microbiotic assemblage compares well with the assemblages known from the Terminal Proterozoic sediments. The large sized acanthomoph Trachyhystrichosphaera vidalii, recorded here for the first time, is known globally after. Varanger glaciation and before diversification of Ediacaran biota. An analysis of the recovered microbiotic assemblage in the Infra Krol Formation suggests its autochthonous nature. It was deposited in stable, shallow water, restricted pond or lake which had occasional contact with the open sea.

Keywords

Terminal Proterozoic, Organic-Walled Rnicrofossils, Infra Krol Formation, Nainital Syncline, Uttaranchal

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• Early Cambrian Ichnofossils and Lnarticulate Brachiopods from the Tal Group, Sirmaur District, Himachal Lesser Himalaya, India

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Authors

V. K. Mathur ¹, D. K. Srivastava ¹

Affiliations
1 Palaeontology Division, Geological Survey of India, Sector - E, Aliganj, Lucknow - 226024, IN

Source

Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 66, No 5 (2005), Pagination: 581-590

Abstract

The assemblage of ichnofossils and inarticulate brachiopods are recorded and described systematically from the Early Cambrian rocks of Tal Group exposed in Nigalidhar and Korgai synclines, Himachal Lesser Himalaya, India. The ichnofossil assemblage occurring in the rocks of Arenaceous Member of Deo ka Tibba (Lower Tal) Formation and Quartzite Member of Dhaulagiri (Upper Tal) Formation, Tal Group exposed in Rayon-Koti Dhaman section of Nigalidhar Syncljne contains Bergaueria sp., Cruziana sp., Didymaulichnus sp., Monomorphichnus sp., Neonereites biserialis, Palaeophycus sp., Plagiogmus sp., Planolites sp., Rusophycus sp., Skolithos sp. and Treptichnus sp. A few ichnofossils i-e. Palaeophycus sp., Planolites sp. and Skolithos sp. have also been recorded from the Arenaceous Member of Deo ka Tibba Formation exposed in Birpa - Bhitar ka Khala section in the Korgai Syncline. This ichnofossil assemblage is known worldwide in the Early Cambrian (Upper Meishucunian to Lower Qiongzhusian) rocks and is corllatable with Ichnozone - III (Crimes, 1987). The inarticulate brachiopods viz. Lingulellu sp., Magnicanalis sp., Mickwitzia sp., Obolella sp. and Obolus sp. of Tsanglangpuian Stage (Early Cambrian) occur alongwith ichnofossils namely, Palaeophycus sp. and Planolites sp, in the shale unit of Quartzite Member of Dhaulagiri Formation, Tal Group exposed in Birpa - Bhitar ka Khala section of Korgai Syncline.

Keywords

Ichnofossils, Inarticulate Brachiopods, Tal Group, Himachal Lesser Himalaya, India.

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• Record of Tissue Grade Colonial Eucaryote and Microbial Mat Associated with Ediacaran Fossfls in Krol Group, Garhwal Syncline, Lesser Himalaya, Uttaranchal

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Authors

V. K. Mathur ¹, D. K. Srivastava ¹

Affiliations
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 63, No 1 (2004), Pagination: 100-102

Abstract

The tissue grade colonial eucaryote Horodyskia Yochelson and Fedonkin and wrinkle structures including Kenneyia ripples and polygonal patterned structures representing microbial mats associated with Ediacaran fossils are recorded from siltstone-shale intercalation of the Kauriyala Formation, Krol Group, exposed about 300 m southeast of Chairkhola (lat. 29°42'35": 10ng.78°58'10") in the Garhwai Synche, Pauri Garhwal district, Uttaranchal (Fig.1). The Ediacaran fossils earlier have been recorded by RaviEdiacaran fossils earlier have been recorded by Ravi in the Garhwal Syncline.

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• Ediacaran Biota from the Jarashi (Middle Krol) and Mahi (Lower Krol) Formations, Krol Group, Lesser Himalaya, India

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Authors

Ravi Shanker ¹, D. D. Bhattacharya ², A. C. Pande ³, V. K. Mathur ²

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

Source

Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 63, No 6 (2004), Pagination: 649-654

Abstract

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.

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• Record of Terminal Neoproterozoic Ediacaran Fossils from Krol Group, Nigalidhar Syncline, Sirmaur District, Himachal Pradesh, India

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Authors

V. K. Mathur ¹, D. K. Srivastava ¹

Affiliations
1 Palaeontology Division, Northern Region, 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 64, No 2 (2004), Pagination: 231-232

Abstract

The note records Ediacaran fossil cf. Dickinsonia sp. from the rocks of Kauriyala Formation (= Krol C, D and E of Auden, 1934), Krol Group exposed at about 400 m west of Thalla (30°37'15": 77° 39'30"), Sirmaur district, Himachal Pradesh, India in the northern limb of Nigalidhar Syncline (Fig. la, b). The Kauriyala Formation (after Shanker et al. 1993) has also yielded other Ediacaran fossils viz. Conomedusites lobatus, Tirasiana sp. and Beltanelliformis cf. brunsae and microbial mat structures from the same horizon and locality in the northern limb of Nigalidhar Syncline, Sirmaur district, Himachal Pradesh, India (Shanker et al. 1997). The microbial structures have also been recorded in association with Ediacaran fossil of Kauriyala Formation, Krol Group in the Garhwal Syncline (Mathur and Srivastava, 2004). The genus Dickinsonia is restricted in Proto-Gondwana (McMenamin, 1982).

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• First Record of Ediacaran Fossils from the Krol Formation of Naini Tal Syncline

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Authors

V. K. Mathur ¹, Ravi Shanker ¹

Affiliations
1 Himalayan Geology Division, Geological Survey of India, Lucknow, IN

Source

Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 34, No 3 (1989), Pagination: 245-254

Abstract

The paper records the discovery of Ediacaran fossils, viz., Beltaneliformis sp. cf. B. brunsae Menner, Pteridinium sp. cf. P. simplex Gurich and Ichnogenus Gordia sp. cf. G. marina Emmons from the upper part of the Krol Formation in the Naini Tal Syncline, Lesser Himalaya. These taxa are comparable with the fossils present in the late Precambrian Wernecke assemblage of Canada and Ediacaran assemblage of other areas, particularly Australia and Eurasia.

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• Record of Cretaceous Biota from Shell Limestone (Nilkanth Formation), Mussoorie Syncline, Lesser Himalaya, India

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Authors

V. K. Mathur ¹, Amit K Ghosh ², P. S. Misra ¹, A. K. Kacker ¹

Affiliations
1 Palaeontology Division, Geological Survey of India, Sector - E, Aliganj, Lucknow - 226 024, IN
2 Birbal Sahni Institute of Palaeobotany, 53, University Road, Lucknow - 226 007, IN

Source

Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 71, No 3 (2008), Pagination: 371-376

Abstract

The Shell Limestone (Nilkanth Formation) of the Mussoorie Syncline, Lesser Himalaya, Uttaranchal, India has yielded varied biota ie bryozoa, echinoid radiole, hydrozoa, foraminifers, green algae and several casts of bivalve genera Presence of Ceriocava nilkanthiSingh, 1980, a bryozoan recorded earlier from the Coraline Limestone of the Bagh Beds (Cretaceous) occurs in the Shell Limestone suggests Cretaceous age for the Nilkanth Formation.

Sandy oolitic limestone with abundant rounded bioclasts of forammifers and dasycladacean green algae indicate a shallow high energy marine environment for this formation. The Nilkanth Formation is unconformably overlain by bioturbated olive greenish grey ferruginous shale of the (?) Subathu Formation of Eocene age.

Keywords

Bryozoa, Green Algae, Nilkanth Formation, Cretaceous, Mussoorie Syncline, Uttaranchal.

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• Discovery of Animal Eggs and Embryos from the Ediacaran (Terminal Proterozoic) Chambaghat Formation, Krol Group, Himachal Lesser Himalaya

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Authors

V. K. Mathur ¹, V. P. Mishra ¹, Shambhu Nath ¹

Affiliations
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: 498-502

Abstract

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.

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