Back
Cyclanthus messelensis
Cyclanthus messelensis S.Y. Sm., M.E. Collinson, Rudall Amer. J. Bot., 95(6): 689. Jun 2008
- Name
- Cyclanthus messelensis
- Rank
- Species
- Generic Name
- [Genus] Cyclanthus
- Authors (Pub.)
- Smith S. Y.
Collinson M. E.
Rudall P. J.
- Publication
- Fossil Cyclanthus (Cyclanthaceae, Pandanales) from the Eocene of Germany and England [2008/6]
- Journal
- American Journal of Botany
- Volume
- 95
- Issue
- 6
- Page number
- 689
- Year
- 2008
- Fossil Status
- fruits
- Stratigraphy
- Lutetian
- Strat. comment
- Messel Formation (Geisaltalian)
- Location
- Messel Pit, near Darmstadt, Germany
- Paleoregion
- Eurasia (Europe)
Data for Holotypus
- Repository
- Senckenberg Naturhistorische Sammlungen Frankfurt, Senckenberg Forschungsinstitut und Naturmuseum, Frankfurt am Main, Germany
- Repository Number
- SM.B.Me 2005
Data for Paratypus
- Repository
- Senckenberg Naturhistorische Sammlungen Frankfurt, Senckenberg Forschungsinstitut und Naturmuseum, Frankfurt am Main, Germany
- Repository Number
- SM.B.Me 4879a & b , 4880 , 2004 , 2006 a & b , 14007 , 17929 , 20028 ; dispersed seeds: SM.B.Me 4881 , 5742 , 5743 , 8203 , 8204 , 14843 , 20915
- Diagnosis
- Discoidal cycles, up to 6 cm in diameter, with cuticular covering, central hole ca. 2.0 – 2.5 cm in diameter, radiating fi ber strands, thickened outer rim. Cuticle thin, epidermal cells square to elongate, stomatal apparatus paratetracytic. Seeds numerous, basally attached to fi ber strands; 2 mm in length; ovoid seed body, elongate micropylar end, short chalazal neck;
adpressed thickened bands obscuring longitudinal ridges and transverse ribs.
