Neue Forschungsergebnisse von gotlandischen Graptolithen

Abstract

For the first time we succeeded in photographing in ultra-violet light graptoliths, the predominating fossils of the Silurian. These were mono- and diprionitic graptoliths such as occur in the alum and silica slates of the Gotlandium in Central Germany. Additional floating apparatuses not visible in ordinary light and exhibiting various constructions were… (More)
DOI: 10.1007/BF02170899

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