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Siella leptocostata
Siella leptocostata G.-X. Yang Zhongguo yuxi erd. huaxia: Yuzhou 250. Jun 2006
- Name
- Siella leptocostata
- Rank
- Species
- Generic Name
- [Genus] Siella
- Replaced Name
- Szecalamitina yangiae
- Authors (Pub.)
- Yang G.-X.
- Publication
- Zhongguo yuxi erdieji huaxia zhiwuqun: yuzhou zhiwuqun [The Permian Cathaysian flora in western Henan Province, China: Yuzhou flora] [2006/6]
- Book
- Zhongguo yuxi erdieji huaxia zhiwuqun: yuzhou zhiwuqun [The Permian Cathaysian flora in western Henan Province, China: Yuzhou flora]
- Page number
- 250
- Year
- 2006
- Parent Taxon
- [Genus] Siella
- Fossil Status
- stems (with sporangiophores)
- Stratigraphy
- Lopingian
- Strat. comment
- (Yungaishan Formation)
- Location
- Henan, China
- Paleoregion
- Cathaysia
Data for Syntypus
- Repository
- National Museum of Minerals, Rocks and Fossils, China University of Geosciences, Beijing, China
- Repository Number
- 0914, 0915, 0916, 0917
- Diagnosis
- Vegetative stem covered by sheath-like overlapping leaves; lower 1/3 of leaves fused, the distal 2/3 portion separated; internode short, node shrunk inward, with thin ridges and furrows pass through the nodes without alternating only occasionally the ridges alternate from node to node. Reproductive stem bearing overlapping bracts, internode short, also with thin ridges and furrows. Sporangiophore curved inward, bearing many sporangia to form a reproductive zone on the node, details not observed. Internode of rhizome and furrows of surface distinct.
Nomenclatural synonyms (basionyms)
Species
