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CoMBIN

Last updated over 1 year ago

Coastal Marine Biodiversity of India

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  • Profile picture of Riffin  T Sajeev who took this action.

    Riffin T Sajeev commented on "Mollusca":

    Presence of Miocene Oysters: Rise and Fall of a Paleo-Estuary in the East Coast of India Riffin T. Sajeev Clou d Publications International Journal of Advanced Earth Science and Engineering 2014, Volume 3, Issue 1, pp. 129 - 142 , Article ID Sci - 198 ISSN: 2320 – 3609 _____________________________________________________________________________________________________ Presenc e of Miocene Oysters: Rise and F all of a Paleo - Estuary in the East Coast of India Riffin T. Sajeev Department of Geology, AWH Special College, Calicut, Kerala, India Correspondence should be addressed to Riffin T. Sajeev, riffin@rediffmail.c om Publication Date: 24 July 2014 Article Link: http://scientific.cloud-journals.com/index.php/IJAESE/article/view/Sci-198 Abstract: Living oysters of Crassostrea Sp. are abundantly found on the east coast of peninsular India. Most of the living Crassostrea sp. is reported from Athankarai estuary near mandapam. The primary object of this study is to report the occurrence of fossils of Crassostrea sp. belonging to mio-pliocene outcrops from an ephemeral stream channel of Nambiyar/Thoppuvila River up to Attankarai Pallivasal, Tirunelveli dist, Tamil Nadu, India. The present study focuses on revealing the nature of a vast paleo-estuary that had existed on the foothills of the southern end of the Western Ghats during the Mio-Pliocene age. The authors had studied the taphonomical features of Crassostrea Gigantissima Sp. and analyzed the adaptation features like heaviness and foliated nature of the shell and orientation of oyster colonies for survival. The predatory signatures on the fossil specimens indicate traces of a well flourished saline tolerable environment that resembled an ideal estuary subjected to high energy disturbances. The chalky calcareous deposits found throughout the study area could have acted as an accelerating agent for the thick, foliate and heavy calcite shells of C. Gigantissima Sp. The author proposes a vast paleo-estuary with an area of around 460 km2 during the mio-pliocene age and the remnants present today is the result of an abrupt regression due to uplift which could have taken place in this area. Keywords: Mahendragiri Hills, Paleo-Estuary, Mio-Pliocene, Crassostrea Sp., Ichnotaxa, Taphonomy, Adaptation.

    4 months ago

  • Profile picture of Kari Pihlaviita who took this action.

    Kari Pihlaviita added the Finnish common name "Nilviäiset" to "Mollusca".

    about 1 year ago

  • Profile picture of Eduard Solà who took this action.

    Eduard Solà added the Catalan common name "Mol·luscs" to "Mollusca".

    about 1 year ago

  • Profile picture of Cédric Valmary who took this action.

    Cédric Valmary added the Occitan common name "mollusques" to "Mollusca".

    over 1 year ago

  • Profile picture of Vishal Bhave who took this action.
    Vishal Bhave added "Mollusca" to the collection "CoMBIN".

    over 1 year ago

  • Profile picture of Hugo Costa who took this action.

    Hugo Costa commented on "Nudibranchia":

    I guys, Check the nudibranch page at http://skaphandrus.com/en/marine_species/order/Nudibranchia a comprehensive catalogue of marine species to sea lovers.

    almost 2 years ago

  • Profile picture of Vishal Bhave who took this action.
    Vishal Bhave added an unknown item to the collection "CoMBIN".

    over 2 years ago

  • Profile picture of Vishal Bhave who took this action.
    Vishal Bhave added an unknown item to the collection "CoMBIN".

    over 2 years ago

  • Profile picture of Tracy  Barbaro who took this action.
    Tracy Barbaro added "Vashon Island Biodiversity" to the collection "iNaturalist Collections".

    over 2 years ago

  • Profile picture of Marie Studer who took this action.