Heinrichsia cheilanthoides gen. et sp. nov., a fossil fern in the family Pteridaceae (Polypodiales) from the Cretaceous amber forests of Myanmar
Ledis Regalado, Alexander R. Schmidt, Patrick Müller, Lisa Niedermeier, Michael Krings, and Harald Schneider
J Syst Evol . 2019, (4): 329 -338 .  DOI: 10.1111/jse.12514