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The wood anatomy of  Paradiospyroxylon kvacekii  gen. et sp. nov. is described and illustrated based on material originating from the Ústí Formation’s volcanic deposits of České středohoří Mts. (Paleogene, Czech Republic). The sample, identified earlier as  Manilkaroxylon  sp., was critically examined and is interpreted as root wood and proposed as the paratype of  Paradiospyroxylon kvacekii . This paper discusses how wood anatomical variation needs to be considered when making systematic and palaeoecological interpretations.

historical biology

Paradiospyroxylon kvacekii  gen. et sp. nov. from the Paleogene of the Czech Republic: a case study of individual variability and its significance for fossil wood systematics