Problems related to the taxonomic placement of incompletely preserved amber fossils: transfer of the Paleogene liverwort Cylindrocolea dimorpha (Cephaloziellaceae) to the extant Odontoschisma sect. Iwatsukia (Cephaloziaceae)
Kathrin Feldberg,Jiří Váňa,Alfons Schäfer-Verwimp,Michael Krings,Carsten Gröhn,Alexander R. Schmidt,and Jochen Heinrichs
Kathrin Feldberg
Ludwig-Maximilians-Universität München, Department für Biologie I, Systematische Botanik
und Mykologie, Geobio-Center, Menzinger Straße 67, 80638 Munich, Germany
Jiří Váňa
Department of Botany, Charles University, Benátská 2, 128 01 Prague 2, Czech Republic
Department für Geo- und Umweltwissenschaften, Paläontologie und Geobiologie, Ludwig-Maximilians-Universität,
and SNSB-Bayerische Staatssammlung für Paläontologie und Geologie, Richard-Wagner-Straße 10, 80333 Munich, Germany
Carsten Gröhn
Amber Study Group, c/o Geological-Palaeontological Museum of the University of Hamburg, Bundesstraße 55, 20146 Hamburg, Germany
Ludwig-Maximilians-Universität München, Department für Biologie I, Systematische Botanik
und Mykologie, Geobio-Center, Menzinger Straße 67, 80638 Munich, Germany
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A revision of amber fossils assigned to Cylindrocolea dimorpha has yielded evidence of the presence of underleaves, which have not previously been reported for this species and conflict with the current circumscription of the family. We transfer the fossil species to Odontoschisma and propose the new combination O. dimorpha. Our reclassification concurs with hypotheses on the divergence times of Cephaloziaceae derived from DNA sequence data.
A revision of amber fossils assigned to Cylindrocolea dimorpha has yielded evidence of the...