Distribution and
relative abundance of dominant benthic foraminifera and their palaeoecological significance
from beach cores sediment in Kerala coast, India
Ravichandran M., Lakshumanan C. and Prabhakaran M.
Disaster Advances; Vol. 14(8); 59-68;
doi: https://doi.org/10.25303/148da5921; (2021)
Abstract
The study on 365 sediment subsamples have been analyzed for benthic foraminifera
from beach cores sediment in Kerala coast, India. The recent benthic foraminiferal
faunal record that reveals the paleoecological preferences of the different benthic
foraminiferal species are reported in this study. A total of 38 species belonging
to 22 genera were identified from the study. For benthic foraminiferal faunal study,
dry samples were sieved over 125 μm-size sieve and split into suitable aliquots
to obtain ~250 specimens of benthic foraminiferal species identified and counted.
The recent benthic foraminiferal faunal record assemblages were dominated by species
are Ammonia beccarii followed by Ammonia gaimardii, Cancris oblongus, Discopulvinulina
bertheloti, Gyroidinoides nitidula, Gyroidinoides cibaoensis and Quinqueloculina
seminulum etc. The most dominant genus like Ammonia was recorded in all the samples
from the study. Benthic foraminiferal species are utilized for biostratigraphy for
several years and have also been confirmed very constructive in paleoceanographic
and paleoclimatological modernization. This study, benthic foraminifera the major
contributor to the marine biotic community is largely employed as an important tool
for paleoclimatic reconstruction for high fossilization potential and a wide range
of geographical distribution.
