Planktonic foraminifera advanced search form


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1. TAXONOMIC CRITERIA
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Within taxon (can be abbreviated):
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3. CHARACTER MATRIX
test outline coiling axis chamber arrangement umbilicus
edge view umbilical or test sutures spiral sutures shell porosity
wall texture aperture position aperture border accessory apertures
periphery umb-side chamber shape spiral-side chamber shape periph margin shape
umbilical depth final-whorl chambers
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