A new genus
and species Palaeocampylopus buragoae is described by imprints in the
Lower Permian deposits from the Russky Island in the Sea of Japan, the Russian
Far East. The plant size and the overall habit, orthotropic growth, narrow
leaves, and especially terminal cup-like structures, resembling rosettes of
perigonial leaves, indicate the most probable affinity with Dicranaceae (cf. Campylopus)
or Polytrichaceae (cf. Polytrichum and Polytrichastrum). The
costa is unseen in leaves and likely was very broad. Although the cell
structure is not well seen, striation of abaxial costa surface allows to
estimate the width of dorsal epidermal cells.