DSpace
 

DSpace at IIT Bombay >
IITB Publications >
Article >

Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/12210

Title: BIOMETRIC STUDY OF LEPIDOCYCLINA (NEPHROLEPIDINA) FROM KUTCH, SAURASHTRA AND QUILON (INDIA)
Authors: SARASWATI, PK
Issue Date: 1994
Publisher: SPRINGER INDIA
Citation: JOURNAL OF THE GEOLOGICAL SOCIETY OF INDIA, 44(1), 79-90
Abstract: The biometric parameters of Lepidocyclina (Nephrolepidina) from the Oligocene - Early Miocene sections of Kutch, Saurashtra and Quilon are studied to evaluate their biostratigraphic importance Following the biometric concept L. (N.) isolepidinoides is identified in the Early Oligocene sequence of Kutch and L. (N.) sumatrensis from die Early Miocene sections of Kutch, Saurashtra and Quilon. The nephrolepidines of Kutch appear to show a gradual sustained change with interval of arrested evolution. The average value of parameter - A stagnated at about 42% during Oligocene and increased to nearly 46% in Early Miocene times. The value of C increased from 1.7 in Early Oligocene to 2.6 in Late Oligocene and 3.9 in Early Miocene. During this interval F increased from 1.2 to 2.7. The parameters A, C and F are found to be most dependable in inferring the relative age of the nephrolepidine assemblages from the studied localities. The staggering values of E and dc prevent them from a reliable use in biostratigraphy.
URI: http://dspace.library.iitb.ac.in/xmlui/handle/10054/12210
http://hdl.handle.net/10054/12210
ISSN: 0016-7622
Appears in Collections:Article

Files in This Item:

There are no files associated with this item.

View Statistics

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback