Polypodiopsida - Polypodiales - Polypodiidae
Parent taxon: Dryopteridaceae according to Y.-S. Liu et al. 1996
See also Andrews 1970, Chandra and Tewari 1991 and Knowlton 1919
Sister taxa: Athyrium, Dryopteridoideae, Elaphoglossoideae, Nephrodium, Olfersites, Polybotryoideae
Subtaxa: Ctenis auriculata Ctenis falcata Ctenis grandifolia Ctenis imbricata Ctenis imjhiriensis Ctenis orovillensis Ctenis sulcicaulis Ctenis wardii
Type: Ctenis falcata
Distribution:
• Paleocene of China (1 collection)
• Cretaceous of Canada (2: British Columbia), Ecuador (2), the Russian Federation (1), United States (1: Alaska)
• Jurassic to Cretaceous of Canada (1: British Columbia), the Russian Federation (1)
• Jurassic of Afghanistan (2), Antarctica (2), Argentina (1), Belarus (3), China (26), Georgia (8), Greenland (5), India (1), Iran (1), Japan (2), Kyrgyzstan (1), Norway (1), Poland (2), Romania (6), the Russian Federation (22), Tajikistan (4), Turkmenistan (1), Ukraine (1), the United Kingdom (17), Uzbekistan (5)
• Triassic to Jurassic of Sweden (1), the United Kingdom (1)
• Triassic of Austria (1), China (14), Greenland (8), Japan (2), Kyrgyzstan (1), South Africa (1), South Korea (2), Tajikistan (2), Ukraine (1)
Total: 154 collections including 195 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.