Hamatophyton is a genus of the extinct Sphenophyllales horsetails. Unique to this genus among other Sphenophyllales is its lack of secondary xylem around...
4 KB (328 words) - 12:04, 28 March 2024
Hamatophyton verticillatum is a species of the extinct Sphenophyllales horsetails. Axes of this plant are pseudomonopodial with axial trichomes or spines...
2 KB (108 words) - 16:55, 19 March 2024
Polypodiopsida Subclass: Equisetidae Order: †Sphenophyllales Seward, 1898 Genera †Hamatophyton †Bowmanites †Cheirostrobus †Columnisporites †Gondwanophyton †Lilpopia...
6 KB (459 words) - 15:37, 2 May 2024
the new genus Rotafolia in 2005. Rotafolia songziensis is similar to Hamatophyton verticillatum and is found in the Xiejingsi Formation. R. songziensis...
4 KB (420 words) - 17:41, 2 April 2024
sphenopsid known from the Devonian, the only other 3 genera, Eviostachya, Hamatophyton and Rotafolia being of palaeotropical provenance. The main stem is approximately...
4 KB (478 words) - 10:06, 2 April 2022