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The functional significance of the spinose keel structure of benthic foraminifera: inferences from Miliolina cristata Millett, 1898 (Miliolida) from northeast Romania

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dc.abstract.enThe paper presents Miocene (lower Sarmatian) benthic foraminifera from the FH3P1 Rădăuţi Core section from the northwestern part of the Moldavian Platform, Romania. Based on foraminiferal assemblages we infer sediments were deposited in shallow-water, including marine-marginal environments, of varying salinities from brackish to normal marine with some short and rather small sea-level changes. Moreover, we describe for the first time in the Moldavian Platform a very rare species, Miliolina cristata Millett, which presents a characteristic spinose keel. Based on a detailed study of the test morphology and its variability, observed in picked material as well as in thin sections, we discuss some palaeoecological aspects of these foraminifera. M. cristata probably does not constitute a distinctive species, but it is more probable that some miliolid taxa developed such an exoskeletal feature in response to new environmental conditions, such as more turbulent water. Accordingly, our study would support the thesis that one of the functions of the benthic foraminiferal spines is to stabilize foraminiferal tests found in sandy substrates from high-energy environments.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorDubicka, Zofia
dc.contributor.authorIonesi, Viorel
dc.contributor.authorDumitriu, Simina Dumitrita
dc.date.accessioned2024-01-26T10:14:13Z
dc.date.available2024-01-26T10:14:13Z
dc.date.issued2018
dc.description.financeNie dotyczy
dc.description.volume37
dc.identifier.doi10.5194/JM-37-153-2018
dc.identifier.issn0262-821X
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/122349
dc.identifier.weblinkhttps://doi.org/10.5194/jm-37-153-2018
dc.languageeng
dc.pbn.affiliationearth and related environmental sciences
dc.relation.ispartofJournal of Micropalaeontology
dc.relation.pages153-166
dc.rightsClosedAccess
dc.sciencecloudnosend
dc.titleThe functional significance of the spinose keel structure of benthic foraminifera: inferences from Miliolina cristata Millett, 1898 (Miliolida) from northeast Romania
dc.typeJournalArticle
dspace.entity.typePublication