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Loyal, R. S.
- Eocene Rodents From New Localities in Himachal Pradesh, Northwest Himalaya, India: Biochronologic Implications
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Authors
Affiliations
1 Wadia Institute of Himalayan Geology, 33 General Mahadeo Singh Road, Dehradun 248 001, IN
2 Department of Geology, Punjab University, Chandigarh - 160 014, IN
3 Department of Geology, Lucknow University, Lucknow - 226 007, IN
1 Wadia Institute of Himalayan Geology, 33 General Mahadeo Singh Road, Dehradun 248 001, IN
2 Department of Geology, Punjab University, Chandigarh - 160 014, IN
3 Department of Geology, Lucknow University, Lucknow - 226 007, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 50, No 4 (1997), Pagination: 461-474Abstract
The report of Eocene rodents from Himachal Pradesh is of considerable biochronologic and biogeographic significance. It corroborates that the Eocene rodent-yielding horizons at the top of the Subathu formation in Jammu and Kashmir and Himachal Pradesh (India) and of the Kuldana Formation in Pakistan are in the same time frame. It also extends the geographic range of the Eocene chapattimyid rodents to about 300 km east of earlier known localities in Rajauri and Reasi districts, Jammu and Kashmir.Keywords
Palaeontology, Eocene, Rodentia, Suhathu Formation, Himachal Pradesh.
- Selachians from the Early Eocene Kapurdi Formation (Fuller's Earth), Barmer District, Rajasthan
Abstract Views :186 |
PDF Views:2
Authors
R. S. Rana
1,
K. Kumar
2,
R. S. Loyal
3,
A. Sahhi
3,
K. D. Rose
4,
J. Mussell
4,
Hukam Singh
5,
S. K. Kulshreshtha
3
Affiliations
1 Department of Geology, HNB Garhwal University, Srinagar - 246 174, Uttaranchal, IN
2 Wadia Institute of Himalayan Geology, Dehradun - 248 001, IN
3 CAS in Geology, Panjab University, Chandigarh - 160 014, IN
4 Centre for functional Anatomy & Evolution, John Hopkins University, School of Medicine, Baltimore, Maryland, US
5 Departmento f Geology, HNB Garhwal University, Srinagar - 246 174, Uttaranchal, IN
1 Department of Geology, HNB Garhwal University, Srinagar - 246 174, Uttaranchal, IN
2 Wadia Institute of Himalayan Geology, Dehradun - 248 001, IN
3 CAS in Geology, Panjab University, Chandigarh - 160 014, IN
4 Centre for functional Anatomy & Evolution, John Hopkins University, School of Medicine, Baltimore, Maryland, US
5 Departmento f Geology, HNB Garhwal University, Srinagar - 246 174, Uttaranchal, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 67, No 4 (2006), Pagination: 509-522Abstract
Based on well preserved isolated teeth, nine genera and twelve species of Eocene selachians (sharks and rays) are recorded and described from the Kapurdi Formation (Fuller's Earth) exposed in an open cast mine situated 3 km northeast of the Barakha village in the Barmer District, Rajasthan. The assemblage includes Notorhynchus sp.; Galeorhinus sp. 1; Galeorhinus sp. 2; Galeocerdo sp.; Physogaleus sp.; Sphyrna sp; Rhinobatos sp. 1; Rhinobatos sp. 2; Dasyatis sp.; Dasyatoidea indet.; Heterotorpedo sp, and Myliobatis sp. Of these, Notorhynchus, Physogaleus, and Heterolorpedo are being reported for the first time from the Indian subcontinent. The associated fish remains are represented by Teleostei including ?Osteoglossidae gen. et sp. indet., Enchodus sp., Sphyraena sp, and Diodon sp., but these will be described elsewhere after additional collections. No reptilian and mammalian remains have so far been found in the fishyielding Kapurdi beds. The Kapurdi ichthyofauna has similarities with the Upper Palaeocene-Lower Eocene fish assemblages known from the Kakara and Subathu Formations in the Himalayan foothills. It is indicative of deposition in a lagoonal Near-Shore environment and is consistent with the Lower Eocene age interpreted mainly on the basis of the foraminifera1 assemblage.Keywords
Selachians, Kapurdi Formation (Fuller's Earth), Eocene, Barmer, Rajasthan.- First Microvertebrate Assemblage from the Fatehgarh Formation (Cretaceous), Barmer District, Western Rajasthan
Abstract Views :200 |
PDF Views:2
Authors
Affiliations
1 Department of Geology, J. N. V. University, Jodhpur - 342 001, IN
1 Department of Geology, J. N. V. University, Jodhpur - 342 001, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 67, No 6 (2006), Pagination: 759-769Abstract
This paper presents a microvertebrate assemblage for the first time from the Fatehgarh Formation exposed in district Barmer, western Rajasthan. The vertebrate fauna represented by well preserved isolated bones, teeth and other skeletal materials, is associated stratigraphically with multiple layers of bedded phosphate and a diverse assemblage of marine benthic gastropods. The vertebrate assemblage comprises cf. igdabatis sp., Semionotiformes indet., Lepisosteus indicus.,?Enchodontidae indet., Albuloidei indet. and ?Stephanodussp . Besides, fragmentary pectoral and dorsal spines of Siluriformes indet. are also present.A Late Cretaceous age is suggested from close faunistic aSfinities of Fatehgarh vertebrates with those from Lameta and inictrappean sequences. A nearshore marine palacoenvironment is reconstructed from close stratigraphic and taphonomic association of microvertebrate assemblage with phosphorite and sand complex.