Class Equisetopsida Rank Genus | Division Pteridophyta | |
Similar Sphenophyllales, Pseudosporochnales, Calamitaceae, Sphenophyllum, Stigmaria | ||
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.
References
Hamatophyton Wikipedia(Text) CC BY-SA