The research subject is
the Miocene aged units that located in the Munzur Mountains at the Ovacık
district of the Tunceli province. There is a continuous sediment deposits from
Paleozoic to Cenozoic at the Munzur Mountains. The neritic limestones of the
Miocene Başpınar formation outcropping in the Ovacık district are rich in
fossil groups of gastropods and bivalves. In this study, 336 samples from the
Başpınar formation have been evaluated. Seven species of Gastropoda (Globularia
carlei, Granulolabium plicatum, Granulolabium (Tiaracerithium) thiarella,
Tympanotonus margaritaceus, Terebralia subcorrugata, Nassarius erunalae,
Cerithium vulgatum,) and four species of Bivalvia (Cardita rusticana, Anadara
aquitanica, Cubitostrea digitalina, Ostrea lamellosa) were identifi ed. One
more species of Bivalvia was identifi ed by using open nomenclature (Chlamys
sp.). The studied fossil assemblage of the Başpınar formation indicates a lower
Miocene age. Furthermore, for the fi rst time in this study, paleoecological
species diversity is calculated by using the Simpson, Shannon-Weaver, Epilou
and Margalef indices for the locations where the fossils were collected.
Numerical results are obtained by comparing bivalves and gastropods. According
to these results, the Gastropoda specimens shows higher dominance (Simpson
index D = 0,82), higher species diversity (Shannon-Weaver index H = 2,53) and
higher species richness (Margalef index M = 1,23) when correlated with Bivalvia
specimens. The Epilou index value (Ep = 0,9) gives the result that the species
numbers in the gastropods are approximately equal to each other.
Primary Language | English |
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Subjects | Engineering |
Journal Section | Articles |
Authors | |
Publication Date | December 3, 2017 |
Published in Issue | Year 2017 Volume: 155 Issue: 155 |
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