Benthic foraminiferal morphogroups from the Paleogene of the Republic of Macedonia – characterization and paleoecological significance

Valchev, Boris and Stojanova, Violeta (2016) Benthic foraminiferal morphogroups from the Paleogene of the Republic of Macedonia – characterization and paleoecological significance. Review of the Bulgarian Geological Society, 77 (2-3). pp. 3-21. ISSN 0007-3938

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Abstract

Behthic foraminiferal assemblages belonging to clayey-carbonate-sandy successions of Late Eocene–Early Oligocene age from seven sedimentary basins of central (Vardar Zone) and eastern part (Serbian-Macedonian Massif) of the Republic of Macedonia were analyzed. The foraminiferal data, obtained from 13 sections (146 samples studied), allowed the definition and illustration of 11 morphological
groups (morphogroups or morphotypes) based on the test shape and the nature of test coiling (i.e. chamber addition): rounded trochospiral (RT), plano-convex trochospiral (PT), biconvex trochospiral (BT), milioline (M), rounded planispiral (RP), lenticular (L), tapered and cylindrical (T/C), spherical (S), flattened tapered (FT), tube-shaped (T), and heteromorphous (H). The present article aims to
expand the paleoenvironmental analysis by combining of the morphological features with inferred life-style (epifaunal, shallow infaunal and deep infaunal) and feeding strategy (suspension feeder, deposit feeder, herbivores, etc.) of the foraminifera. Comparison of our morphogroup system to modern and fossil ones is outlined accordingly. Generally, the investigated assemblages are slightly dominated by morphogroups characteristic for shallow (shelf) environment.

Item Type: Article
Uncontrolled Keywords: benthic foraminifers, morphogroups, paleoecology, Paleogene, Republic of Macedonia
Subjects: Natural sciences > Earth and related environmental sciences
Divisions: Faculty of Natural and Technical Sciences
Depositing User: Violeta Stojanova
Date Deposited: 15 May 2017 09:23
Last Modified: 15 May 2017 09:23
URI: https://eprints.ugd.edu.mk/id/eprint/17767

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