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New morphotype of reticulate nummulites (foraminiferida) from the lower oligocene of Southwestern Kutch, India
S SARKAR, R SYED,
Published in Palaeontological Society Of India
2014
Volume: 59
   
Issue: 2
Pages: 193 - 198
Abstract
A new morphotype of the megalospheric form of the larger foraminifer Nummulites cf. fichteli Michelotti from the Lower Oligocene of southwestern Kutch, western India is documented here for the first time. This morphotype shows ontogenetic change of orientation of the coiling plane and is apparently endemic. Previous studies on the megalospheric form of this species had led to the documentation of lenticular, conical and saddle-shaped morphotypes. These multiple morphotypes reveal different adaptations to varied bottom conditions.
About the journal
JournalJournal of the Palaeontological Society of India
PublisherPalaeontological Society Of India
ISSN0552-9360