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Volume 27.1
January–April 2024
Full table of contents
ISSN: 1094-8074, web version;
1935-3952, print version
Recent Research Articles
See all articles in 27.1 January-April 2024
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Narendra K. Swami. Himalayan Geology Division, Geological Survey of India, Sector-E, Aliganj, Lucknow, 226024, Uttar Pradesh, India. narendraswami92@rediffmail.com
Dr. Narendra K. Swami is Geologist who has extensively worked on Jurassic sequence of Kachchh, Jaisalmer, Spiti and Uttarakhand. He has published one scientific paper in international journals and three abstract presented in national seminars. He has also worked on Dhoosa oolite of Kachchh and presently worked on hardground, ammonoids and Ichno-fossils of Jurassic.
Satish C. Tripathi. Himalayan Geology Division, Geological Survey of India, Sector-E, Aliganj, Lucknow, 226024, Uttar Pradesh, India. sctgsilko@rediffmail.com
Dr. Satish C. Tripathi has contributed immensely to the geology of Kumaon-Garwhal Himalaya and Trans-Himalayan sector of Northwestern Himalaya. He has published 36 scientific papers in International and national journals. Dr. Tripathi is editor of open access e-Journal Earth Science India and Series Editor of Society of Earth Scientists Series by Springer.
Ramesh Laishram. Geological Survey of India, Plot no. 3, Sector- 33B, Chandigarh, 160020, Chandigarh, India. rames.laishram@gmail.com
Mr. Ramesh Laishram has carried out intensive work in Himachal Pradesh, including National Geochemical Mapping program and Tethyan Sequence of Spiti Valley.
Amit Dharwadkar. Geological Survey of India, Sector-E, Aliganj, Lucknow, 226024, Uttar Pradesh, India. amit.rama@gmail.com
Mr. Amit Dharwadkar has extensively worked in Antarctic and Arctic regionsfor over 15 years participating in eight geo-scientific expeditions and augmented our knowledge of Polar regions. His work in various glaciological investigations and climate change has yielded valuable insights in Polar Ice recession pattern and mass-balance characteristics. His contributions have been incorporated and resulted in the publications of two maps apart from several research articles in national and international journals.
FIGURE 1. Geological map of the Pin River valley, Lahaul and Spiti district of Himachal Pradesh, India, showing location of the fossil specimen demarcated by star.
FIGURE 2. Litholog showing the stratigraphic level of the Paraconularia sp. with respect to Gungri Formation.
FIGURE 3. 1, Paraconularia embedded in the Micaceous siltstone of the lower part of Gungri Formation, Guling village. 2, Upper Nodular Black Shale Member of the Gungri Formation. 3, Permian-Triassic boundary, Guling village. 4, Ammonite bearing Triassic limestone of Mikin Formation, opposite to Guling village.
FIGURE 4. Paraconularia sp. embedded in the micaceous siltstone of the Gungri Formation. 1, View of single face. 2, Close-up view showing well-developed nodes on facial ridge (transverse rib) and interspace. 3, Apertural side showing widely spaced facial ridges, which alternately arranged either side of the midline. 4, Close-up view of the apertural side showing nodes on facial ridge.
First record of extinct Paraconularia (Cnidaria, Scyphozoa) from Tethyan sequence (Upper Permian) of Spiti valley,
Himachal Himalaya, India
Plain Language Abstract
A rare conulariid fossil specimen has been discovered for the first time from the lower part of the Siltstone Member of the Gungri Formation, about 500 m to the west of village Guling, on the left bank of the Pin River (a tributary of Spiti River), in Lahaul and Spiti district of Himachal Pradesh, India. The nature of the specimen is quite well preserved and adds to knowledge of Permian conuarliids from the India.
Resumen en Español
Primer registro del género extinto Paraconularia (Cnidaria, Scyphozoa) de la secuencia relacionada con el Tetis (Pérmico Superior) del valle de Spiti, Himalaya Menor, India
Una sucesión casi completa de sedimentos marinos relacionados con el Tetis se extiende desde el Precámbrico hasta el Cretácico y queda expuesta en el valle de Spiti en el Himalaya Menor, India. Por primera vez, el presente estudio cita y describe Paraconularia sp., perteneciente a los conularios, de la Formación Gungri de edad Pérmico Superior, en el valle del río Pin (afluente del río Spiti) en Himachal Pradesh. El espécimen está bastante bien conservado, y su descubrimiento de la secuencia relacionada con el Tetis aporta nuevo conocimiento sobre los conularios del Pérmico de la India.
Palabras clave: Pérmico Superior; Formación Gungri; Paraconularia; Spiti; Límite PT
Traducción: Enrique Peñalver (Sociedad Española de Paleontología)
Résumé en Français
Première occurrence de Paraconularia (Cnidaria, Scyphozoa) fossile dans la séquence téthysienne (Permien supérieur) de la vallée de Spiti, Himalaya Himachal, Inde
Une succession sédimentaire marine téthysienne quasi-complète, datant du Précambrien au Crétacé, affleure dans la vallée de Spiti, Himalaya Himachal, Inde. Cette étude signale et décrit pour la première fois l’occurrence du conulariidé Paraconularia sp. dans le Permien supérieur de la formation de Gungri, dans la vallée de la rivière Pin (un affluent de la rivière Spiti) dans le Himachal Pradesh. Le spécimen est assez bien préservé et sa découverte dans une séquence téthysienne enrichit la connaissance des conulariidés permiens d’Inde.
Mots-clés : Permien supérieur ; formation de Gungri ; Paraconularia ; Spiti ; limite Permien-Trias
Translator: Antoine Souron
Deutsche Zusammenfassung
Erster Nachweis der ausgestorbenen Paraconularia (Cnidaria, Scyphozoa) aus der Tethys-Sequenz (Oberes Perm) des Spiti Tals, Himachal Himalaya, Indien
Im Spiti Tal (Himachal Himalaya, Indien) ist eine nahezu komplette marin-sedimentäre Tethys Abfolge vom Präkambrium bis in die Kreide aufgeschlossen. Die gegenwärtige Untersuchung erfasst und beschreibt zum ersten Mal das Auftreten von Paraconularia sp., die zu den Conulariiden gehört, aus der Gungri Formation des Oberen Perms, im Tal des Pins (ein Nebenfluss des Spiti ) im Himachal Pradesh. Das Stück ist sehr gut erhalten und seine Entdeckung in der Tethys Sequenz trägt zum Verständnis der permischen Conulariiden aus Indien bei.
Schlüsselwörter: Oberes Perm; Gungri Formation; Paraconularia; Spiti; PT Grenze
Translator: Eva Gebauer
Arabic
Translator: Ashraf M.T. Elewa
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Review: The Princeton Field Guide to Mesozoic Sea Reptiles
The Princeton Field Guide to Mesozoic Sea Reptiles
Article number: 26.1.1R
April 2023 -