Chaloneria
| Chaloneria | |
|---|---|
 | |
| Reconstructions of Clevelandodendron (left), Chaloneria (center), and Pleuromeia (right) | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Lycophytes |
| Class: | Lycopodiopsida |
| Order: | Isoetales |
| Family: | †Chaloneriaceae |
| Genus: | †Chaloneria Pigg & Rothwell (1983) |
| Species | |
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Chaloneria is a genus of extinct lycopsid from the Middle to Late Pennsylvanian of the Carboniferous. The unbranched plant grows to a height of around 2 m, with a stem diameter of 10 cm. Leaves, adorning the stem in a helical pattern, leaving behind irregular leaf scars when broken off. It has a fertile region at the top of the stem, bearing alternating micro- and megasporangial areas.[1]
References
[edit]- ↑ Pigg, Kathleen B.; Rothwell, Gar W. (1983). "Chaloneria Gen. Nov.; Heterosporous Lycophytes from the Pennsylvanian of North America". Botanical Gazette. 144 (1): 132–147. ISSN 0006-8071.
Genera of Lycopodiopsida | ||
|---|---|---|
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| †Drepanophycales | 
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| Lycopodiales | ||
| †Protolepidodendrales | ||
| Selaginellales | ||
| Isoetales | ||
| †Lepidodendrales | ||
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