Abstract
Study of recent collection of echinoids from the Bagh Beds has yielded four new species. Distribution of the echinoid species in these strata does not warrant treating each constituent member of the series as a distinct unit having its own characteristic species or an assemblage of species; and in spite of their lithological differences, they together constitute a single palaeontological unit. Affinities of these echinoids range from Aptian to Senonian; but their mixture in all the strata, lower as well as upper, shows that Cenomanian is the most conspicuous element throughout. Also, the two generaPolydiadema andTetragramma not known to survive the Cenomanian times set this as the upper age limit, and six out of eight species ofHemiaster belong to the subgenusMecaster appearing in Cenomanian, and thus set the lower age limit for the ‘Bagh echinoid fauna’. Thus this echinoid fauna has to be taken as of Cenomanian age. Further, their faunal affinities are undoubtedly with the Mediterranean Palaeo-zoo-geographic province, particularly the North African region.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Arnaud, H... “Quelques observations sur lessSalenia crétacés du sud ouest.,”Soc. Linneanne Bordeaux, Actes, 1897,52, 1–35, pl. 3.
Bose, P. N... “Geology of the lower Narbada Valley between Nimawar and Kawant,”Mem. Geol. Surv. Ind., 1884,21(1), 1–72.
Boule, M. and Thevenin, A. “Paléontologie de Madagascar (1) I. Fossiles de la Côte Orientale,”Ann. de Pal., 1906,1, 43–59, pl. 2.
Chiplonkar, G. W... “Echinoids from the Bagh Beds,”Proc. Ind. Acad. Sci., 1937,B 6(1), 60–71, pl. 1.
—————.. “Echinoids from the Bagh Beds,” Part II, Ibid., 1939,B 9(5), 236–46, pl. 1.
Collignon, M. and Lambert, J. “Espéces Nouvelles D’Échnindes fossiles Étables Par Paul Thiéry,”Bull. Soc. Géol. de France Sér, 1928, (4),28, Fasc. 1–2.
Coquand, H. .. “Géologie et Paléontologie de la région Sud de la province de Constantine,”Extrait. de Mém. Soc., Emulation Provence, Marseille, 1862.
Cotteau, Peron and GauthierÉchinides Fossiles de l’Algérie Étage Turonien, 1879,2, Fac. 6.
----- ..Êchinides Fossiles de l’Algêre Étage Sénonien, 1881,2, Fac. 6.
Cottreau, J. ..Fossiles Crétacés de la Côte Orientale de Madagascar, Ann. Pal., 1922,11.
Duncan, P. M... “Description of the Echinodermata from the strata on the South-Eastern coast of Arabia and at Bagh on the Narbada in the collection of Geological Society,”Q.J.G.S., London, 1865,30(4), 349–63.
—————.. “Notes on Echinoidea of the lower Narbada Valley, with remarks upon their Geological age,”Rec. Geol. Surv. Ind., 1887,20(2), 81–92.
Fallot, F. .. “Étude Géologique sur les Étages Moyens supérieurs du Terrain Crétacé dans le Sud-Est. la France,”Ann. des. Sci. Géol., 1885,17–18.
Fourtau, R. .. “Catalogue des invértebrés fossiles de l’Egypt. Terrains crétacés. Pt. I. Échinodermes,”Géol. Surv. Egypt, 1914, Pal. Sér. No. 2.
—————.. “Les Échinides des Bagh Beds,”Rec. Geol. Surv. Ind., 1918,49(1), 34–53.
----- .. “Catalogue des invertebres fossiles del ’Egypt. Terrains cretaces. Pt. III. Echinodermes (suppl.),”Geol. Surv. Egypt, 1921, Pal. Ser. No. 5.
Gauthier, V. .. “Descriptions des Échinides fossiles recuillis en 1885 et 1886, dans la région sud des haut plateaux de la Tunisie par M. Philippe Thomas,”Explor. Scient. Tunisie. 1889.
Kossmat, P... “On the importance of the Cretaceous rocks of South India in estimating the geological conditions during later Cretaceous times,”Rec. Geol. Surv. Ind., 1895,28(1), 39–55.
—————.. “The Cretaceous Deposits of Pondichery” (Translated by A Foord), Ibid., 1897,30 (2), 51–110, pls. 1–5.
Lambert, J. .. “Note sur quelques nouveaux Échinides crétacés de Madagascar,”Bull. Soc. Géol. France, Sér., 1905, (4),3.
----- .. “Description des Échinides fossiles de la Province de Barcelone,”Mém. Soc. Géol. France Paléont., 1906,14, Fasc. 2–3.
----- .. “Étude sur les Échinides fossiles du Nord de l’Afrique,”Ibid. 1932, N.S.7, fasc. 2,Mèmè No. 16, Fasc. 4.
—————.. “Échinides de Madagascar, Sér. Mines. Madagascar,”Ann Géol., 1933,3, 1–49, pl. 4.
-- and Thiery, P. ..Essai de nomenclature raisonnée de Échinides, 1909–25.
Loriol, P. De .. “Monographic des couches de L’étage Valanginien de Carrieres D’azier (Vaud),”Mater. Pal. Suiss. 1868, Ser. 5.
Moore, R. C. ..Treatise on Invertebrate Paleontology, Part U. Echinodermata, 1966,3, (1 and 2). Ed. by Moore R. C. The Geological Society of America, Inc., and the University of Kansas Press.
Mukerjee, P. N... In Gupta, B. C. and Mukerjee, P. N. “Geology of Gujrath and Southern Rajputana,”Rec. Geol. Surv. Ind., 1938,73(2), 163–208.
Roemer, F. ..Die Kriedebildungen von Texas und ihre organischen Einschiisse, Bonn, 1852.
Smiser, J. S... “A study of the echinoid fragments in the Cretaceous rocks of Texas,”J. Paleontol., 1933,7(2), 123–63, pl. 17–22.
Verma, K. K. .. “Bagh beds—their fauna and affinities with South Indian Cretaceous formations,”In Seminar on Cretaceous-Tertiary. Formations of South India, Mem. No. 2, Geoi. Soc. Ind., 1966, pp. 239–47.
Author information
Authors and Affiliations
Additional information
Communicated by Prof. T. S. Mahabale,f.a.sc.
Rights and permissions
About this article
Cite this article
Chiplonkar, G.W., Badve, R.M. Palaeontology of the Bagh Beds. Proc. Indian Acad. Sci. 76, 133–152 (1972). https://doi.org/10.1007/BF03052471
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF03052471