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Last updated over 4 years ago

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  • Profile picture of Jennifer Hammock who took this action.

    Jennifer Hammock split the classifications by Moorea Biocode and AlgaeBase from Mollusca to their own page.

    10 months ago

  • 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: 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.

    over 2 years ago

  • Profile picture of Kari Pihlaviita who took this action.

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

    about 3 years ago

  • Profile picture of Eduard Solà who took this action.

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

    about 3 years ago

  • Profile picture of Cédric Valmary who took this action.

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

    over 3 years ago

  • Profile picture of Katja Schulz who took this action.

    Katja Schulz marked the classification from "NCBI Taxonomy" as preferred for "Mollusca".

    about 4 years ago

  • Profile picture of Josefin Stiller who took this action.

    Josefin Stiller added the German common name "Weichtiere" to "Mollusca".

    over 4 years ago

  • Profile picture of Quenter Su who took this action.
    Quenter Su created the collection "Mollusca".

    over 4 years ago