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. The paper presents Miocene (lower Sarmatian) benthic foraminifera from theFH 3 P 1 Rădăuţi Core section from the northwestern partof the Moldavian Platform, Romania. Based on foraminiferal assemblages weinfer sediments were deposited in shallow-water, including marine-marginalenvironments, of varying salinities from brackish to normal marine with someshort and rather small sea-level changes. Moreover, we describe for the firsttime in the Moldavian Platform a very rare species, Miliolina cristata Millett, which presents a characteristic spinose keel. Based on adetailed study of the test morphology and its variability, observed in pickedmaterial as well as in thin sections, we discuss some palaeoecologicalaspects of these foraminifera. M. cristata probably does notconstitute a distinctive species, but it is more probable that some miliolidtaxa developed such an exoskeletal feature in response to new environmentalconditions, such as more turbulent water. Accordingly, our study wouldsupport the thesis that one of the functions of the benthic foraminiferalspines is to stabilize foraminiferal tests found in sandy substrates fromhigh-energy environments.

journal of micropalaeontology

The functional significance of the spinose keel structure of benthic foraminifera: inferences from &amp;lt;i&amp;gt;Miliolina cristata&amp;lt;/i&amp;gt; Millett, 1898 (Miliolida) from northeast Romania