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Caloneis pulchra Messikommer
Specimen
"Facies à Oocardium" avec: Cymbella laevis Cymbella cesati Cymbella alpina Cymbella hustedtii Cymbella sp.(ad. Cymbella amphicephala) Caloneis pulchra Nitzschia sp.(voir N.interrupta(Reich.)Hustedt)
Taxonomy
Origin
Determination
Online taxonomics references