Molecular and Morphological Evidence Challenges the Records of the Extant Liverwort Ptilidium pulcherrimum in Eocene Baltic Amber
Fig 2
Holotype of Tetralophozia groehnii sp. nov. (GPIH 4575) from Baltic amber. The fossil was initially assigned to Ptilidium [43] but morphology is inconsistent with this genus (scale bars 100 μm).
(A) Upper portion of gametophyte in lateral view. (B, C) Deeply quadrified leaves, teeth at lobe base pointing towards the plant base. (D) Impressions of leaf lobes showing leaf cells with papillose cuticle in ventral view. (E) Densely ciliate, bifid underleaf (circle).