Randomized trial reveals taxonomic differences in Arctic foraminifera, suggesting ecological changes over time.
Key Points
This research aims to clarify the taxonomy of spinose planktonic foraminifera in the Arctic, focusing on morphological differences and species identification.
Analyzed Arctic and sub-Arctic planktonic foraminifera using light and SEM imaging.
Conducted morphometric analysis to distinguish between morphotypes.
Reviewed biostratigraphic age constraints for taxonomic classification.
Identified two spinose morphotypes with distinct morphological traits and stratigraphic positions.
Confirmed taxonomic differentiation, reinstating the name exumbilicata for the older morphotype.
Determined that both morphotypes exhibit characteristics suggesting different ecological histories and evolutionary pathways.