Cooksonia

Libertín, Milan, Kvaček, Jiří, Bek, Jiří & Štorch, Petr, 2018, Plant Diversity Of The Mid Silurian (Lower Wenlock, Sheinwoodian) Terrestrial Vegetation Preserved In Marine Sediments From The Barrandian Area, The Czech Republic, Fossil Imprint 74 (3 - 4), pp. 327-333 : 329-330

Cooksonia barrandei LIBERTÍN, J.KVAČEK, BEK,

ŽÁRSKÝ et ŠTORCH

Text-fig. 3a, b

H o l o t y p e. NM-D 552a, b, National Museum, Prague

( Text-fig. 3a ).

T y p e l o c a l i t y.Loděnice, Špičatý vrch – Barrandovy

Jámy.

T y p e h o r i z o n. Monograptus belophorus Biozone,

Motol Formation, middle Sheinwoodian, Wenlock, Silurian.

R e m a r k s. For diagnosis, description, and spores in situ see Libertín et al. (2018). However, some details, particularly related to the handwritten notes, were not mentioned in the paper referred to above. Both part and counterpart of the holotype bear the name of the locality handwritten in black ink directly on the rock by Joachim Barrande. The handwritten note is as follows: Lodenitz (E). The letter E indicates Barrande’s labeling of the Silurian section as depicted in his diary ( Text-fig. 4 ). This letter on the type specimen, together with associated zonal index graptolite Monograptus belophorus (MENEGHINI), helped the authors to identify the source horizon of the type material .

Additionally, we present here an idealized reconstruction of C. barrandei showing an overtopped terminal part of the axis and curved, probably creeping main axis. This

reconstruction was prepared in collaboration with an artist Jiří Svoboda ( Text-fig. 3b ).

Figures

Text-fig. 3. Cooksonia barrandei LIBERTÍN et al., Loděnice, Špičatý vrch – Barrandovy Jámy, coll. National Museum, Prague, the Czech Republic. a. Holotype, isotomously branched axis with sporangia, NM-D 552a (scale bar 10 mm); b. Reconstruction by Jiří Svoboda.

Text-fig. 4. Pages from handwritten diary of Joachim Barrande from years 1841 – 1846 (coll. National Museum, Prague, the Czech Republic).