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Some fossil Margaretta (Ascophora:Bryozoa) from the Cenozoic sediments of Western Kachchh, Gujarat

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Journal of the Geological Society of India

Abstract

Four species of Schizoporellid (family Margarettidae Harmer,1957) Bryozoa are described from the Cenozoic sediments of the Western Kachchh, Gujarat, India. Among these Margaretta amplipora, and M. hariparensis are new to science and the other species viz; M. guhai nom. nov. and M. rajui Guha & Gopikrishna, 2007 are reported for the second time from these sediments. The erect delicate articulated zoarial growth forms of these species indicate shallow water, moderate to high energy settings. The phylogenetic analysis suggests all the species of Margaretta are monophyletic i.e. all of these species have common ancestor.

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References

  • Bassler, R.S. (1953) Bryozoa In: R.C. Moore (Ed.), Treatise on Invertebrate Palaeontology (Part G); Geol. Soc. Amer. & Univ. of Kansas Press, New York.253p.

    Google Scholar 

  • Biswas, S.K. (1992) Tertiary Stratigraphy of Kachchh; Jour. Pal. Soc. India, v.37, pp.1–29.

    Google Scholar 

  • Canu, F. and Bassler, R.S. (1920) North American Early Tertiary Bryozoa. Bull. Un. St. Nat. Mus., No.106, 879p, 162 pls.

    Google Scholar 

  • Gordon, D.P. (1989) The marine fauna of New Zealand: Bryozoa: Gymnolaemata (Cheilostomida Ascophorina) from the western south Island continental shelf and slope. N. Z. Oceanogr. Instit. Mem., no.97, pp.1–158.

    Google Scholar 

  • Gordon, D.P. (2005) Interim Classification of genera and subgenera of Cheilostomata (working list for Treatise). 10 January 2005 version, Email from <d.gordon@niwa.co.nz>.

    Google Scholar 

  • Guha, A.K. and Gopikrishna, K. (2004a) Fossil Thalamoporella (Bryozoa) from the Tertiary Sequences of Kachchh, Gujarat, India. Irene Marine McCulloch Foundation Monograph Series, Hancock Institute of Marine Studies, University of Southern California, Los Angeles, Californis, v.7, pp.1–50.

    Google Scholar 

  • Guha, A.K. and Gopikrishna, K. (2004b) Reniporella gordoni, a new genus and species of Bryozoa (Cheilostomata: Steginoporellidae) from the Middle Eocene of Western Kachchh, Gujarat, India with a note on its significance. N. Jb. Geol. Paläont. Mh., (11), pp.681–693.

    Google Scholar 

  • Guha, A.K. and Gopikrishna, K. (2005a) Diversity, evolution and paleoecology of the Tertiary bryozoan assemblages of western Kachchh, Gujarat, India. pp.107-118. In: Bryozoan Studies 2004: (Eds. Moyono G., H. I., Cancino, J.M. and Wyse Jackson, P.N.), A.A. Balkema Publishers: Leiden.

  • Guha, A.K. and Gopikrishna, K. (2005b) Archoporella–a new hippopodinid genus (Bryozoa: Chielostomata) from the Palaeogene of Western Kachchh, Gujarat, India. N. Jb. Geol. Paläont. Mh. (7), pp.415–30.

    Google Scholar 

  • Guha, A.K. and Gopikrishna, K. (2005c) New petraliid cheilostome bryozoan taxa from Aquitanian of western Kachchh, Gujarat, India. N. Jb. Geol. Paläont. Mh., (11), pp.694–704.

    Google Scholar 

  • Guha, A.K. and Gopikrishna, K. (2005d) New Smittinid (Bryozoa, Cheilostomata) species from Tertiary Sequences of Western Kachchh, Gujarat, India. Freiberger Forschungshefte C 507: Paläontologie, Stratigraphie, Fazies Freiberg, v.13, pp.11–25.

    Google Scholar 

  • Guha, A.K. and Gopikrishna, K. (2005e) Lunulitiform cheilostome bryozoans from the Miocene sequences of western Kachchh, Gujarat, India. Jour. Pal. Soc. India. 50(2): 13–24

    Google Scholar 

  • Guha, A.K. and Gopikrishna, K. (2005f) Some fossil anascan bryozoan taxa from the Tertiary sequences of Western Kachchh, Gujarat. Jour. Pal. Soc. India, v.50(2), pp.135–151.

    Google Scholar 

  • Guha, A. K. and Gopikrishna, K. (2007a) new celleporid (Bryozoa Cheilostomata) species from the Tertiary deposits of western Kachchh, Gujrat, India. Paläont. Zeitsch, v.81/1: pp.83–92.

    Article  Google Scholar 

  • Guha, A.K. and Gopikrishna, K. (2007b) New fossil Steginoporellid and Schizoporellid species (Bryozoa, Cheilostomata) from the Tertiary sequence of western Kachchh, Gujarat, India. Jour. Geol. Soc. India, v.69(4), pp.801–812.

    Google Scholar 

  • Guha, A.K. and Gopikrishna, K. (2007c) Cyclostome Bryozoa from the (Eocene) Lutetian of western Kachchh, Gujarat, India. Jour. Geol. Soc. India, v.69(6), pp.1271–1278.

    Google Scholar 

  • Guha, A.K. and Gopikrishna, K. (2007d) New Calloporid (Bryozoa, cheilostomata) species from Tertiary sequences of western Kachchh, Gujarat, India. Jour. Pal. Soc. India, v.70(1), pp.121–130.

    Google Scholar 

  • Guha, A.K. and Gopikrishna, K. (2007e) Some fossil Ascophoran bryozoans from Tertiary sequences of western Kachchh, Gujarat. Jour. Pal. Soc. India, v.52(2), pp.195–222.

    Google Scholar 

  • Harmer, S.F. (1957) The Polyzoa of the Siboga Expedition, Part 4. Cheilostomata Ascophora II. Siboga Expedition Reports 28d: pp.641-1147.

    Google Scholar 

  • Orbigny, A.D. (1851-1854) Paléontologie Française. Description des animaux invertébrés Terrain Crétacé. Tom cinquième. Bryozoaires Paris 1. 192 p. 200pls.(1851-p.1-188, 1852-p.189-472, 1853-p.473-984, 1854-p.985-1192.).

    Google Scholar 

  • Pallas, P.S. (1766) Elenchus zoophytorum sistens generum adumbrationes generaliores et speciarum cognitarum succintas descriptiones cum selectis auctorus synonymis pp.1–451. Petrum van Cleef, Hagae-Comitum.

    Book  Google Scholar 

  • Sonar, M.A. and Gaikwad, S. (2013a) Fossil Steginoporellid (Cheilostomata: Neocheilostomina), Bryozoa from the Tertiary Sediments of Western Kachchh, Gujarat, India. Jour. Earth Sys. Sci., (122): 1, pp.149–161.

    Article  Google Scholar 

  • Sonar, M.A. and Gaikwad, S. (2013b) Fossil Neocheilostomine Bryozoa from the Tertiary Sediments of Western Kachchh, Gujarat, India. Jour. Geol. Soc. India, v.81, pp.665–676.

    Article  Google Scholar 

  • Tewari, B.S., Bhargava, O.N. and Tandon, K.R. (1958) Two Cheilostome Bryozoa from Lower Miocene Beds of Kutch. Jour. Pal. Soc. India, v.3, pp.233–234, 2pls.

    Google Scholar 

  • Tewari, B.S. and Srivastava, I.P. (1967) On Some Fossil Bryozoa from India. Jour. Geol. Soc. India, v.3, pp.18–28.

    Google Scholar 

  • Tilbrook, K.J. (2006) Cheilostomatous Bryozoa from the Solomon Islands. Santa Barbara Mus. Nat. Hist. Monogr. 4 (Studies in Biodiversity Number 3), pp.1–386.

    Google Scholar 

  • Zágoršek, K. and Vávr A, (2000) A new method for the extraction of bryozoans from hard rocks from the Eocene of Austria. Jahrb. Geologisch. Bundesan. Wien, v.142, pp.249–258.

    Google Scholar 

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Sonar, M.A., Gaikwad, S.G. Some fossil Margaretta (Ascophora:Bryozoa) from the Cenozoic sediments of Western Kachchh, Gujarat. J Geol Soc India 88, 620–626 (2016). https://doi.org/10.1007/s12594-016-0528-0

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