Mesocalamites HIRMER , 1927

Cleal, Christopher J., Strullu-Derrien, Christine & Spencer, Alan R. T., 2024, Early Coal Swamp Vegetation From The Serpukhovian Lower Clackmannan Group Of Scotland, Fossil Imprint 80 (1), pp. 35-67 : 44

Fossil-genus Mesocalamites HIRMER, 1927

R e m a r k s. Crookall (1969) assigned these stem fossils to Calamites sect. Mesocalamites , but to simplify the nomenclature Mesocalamites is taken here to be a fossil-genus in its own right. Although Mesocalamites is morphologically intermediate between Archaeocalamites STUR and Calamites STERNB. , it is placed in the Calamitaceae based on its association elsewhere with calamitacean foliage and strobili (e.g., Strullu-Derrien et al. 2021). However, no foliage or strobili have been reported from the lower Clackmannan Group.