Hamatophyton

Hamatophyton
Temporal range: Famennian–Tournaisian
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Division: Polypodiophyta
Class: Polypodiopsida
Subclass: Equisetidae
Order: †Sphenophyllales
Genus: †Hamatophyton
L.-H. Deng, X.-X. Li, Z.-Y. Zhou, R. Xu, J.-N. Zhu, nom. inval.[1]
Species

See text.

Hamatophyton is a genus of the extinct Sphenophyllales horsetails. Unique to this genus among other Sphenophyllales is its lack of secondary xylem around the tips of the primary xylem arms.[2] One of its species has also been placed in the genus Sphenophyllostachys, which is regarded as a synonym of Bowmanites by the Interim Register of Marine and Nonmarine Genera.[3]

  1. ^ Cite error: The named reference IFPNI_H was invoked but never defined (see the help page).
  2. ^ Taylor, T.N.; Taylor, E.L. & Krings, M. (2009). Paleobotany, The Biology and Evolution of Fossil Plants (2nd ed.). Amsterdam; Boston: Academic Press. ISBN 978-0-12-373972-8.
  3. ^ "Bowmanites". Interim Register of Marine and Nonmarine Genera. Retrieved 2024-02-24.