Parmotrema fossils from Dominican amber. A−C. Parmotrema specimen 1 (SMNS-DO-4928-M); A. Parmotrema inclusion with a bryophyte (leafy liverwort, Porellales); B. Lobes seen from above showing the truncate lobe apices, dark lobe margins, and long marginal cilia. The lighter spots visible on the upper surface of the thallus are caused by slight depressions and their brighter color derives from air-filled spaces between the thallus surface and amber. These depressions seem to correspond to the attachment points of the rhizines on the lower surface; C. Close-up of the slightly uneven upper surface and finger-like isidia. D−E. Parmotrema specimen 2 (SMNS-DO-4929-M); D. Close-up of the upper surface with abundant pycnidia; E. General view of the inclusion, showing the very long, branching marginal cilia.

 
 
  Part of: Feldberg K, Kaasalainen U, Mamontov YS, Gradstein SR, Schäfer-Verwimp A, Divakar PK, Schmidt AR (2025) Extending the fossil record of Miocene neotropical epiphyte communities. Fossil Record 28(1): 79-102. https://doi.org/10.3897/fr.28.137758