''Ibyka'' is an extinct genus of

Iridopteridales Iridopteridales is an order of the extinct cladoxylopsids. It contains the genus ''Ibyka'' which is a possible ancestor of the horsetails ''Equisetum'' (; horsetail, snake grass, puzzlegrass) is the only living genus in Equisetaceae, a f ...

, and a possible ancestor to

horsetails ''Equisetum'' (; horsetail, snake grass, puzzlegrass) is the only living genus in Equisetaceae, a family of ferns, which reproduce by spores rather than seeds. ''Equisetum'' is a " living fossil", the only living genus of the entire subclass ...

.
The name comes from the poet Ibykos because the discovery of the fossil was due to the activity of construction cranes during the construction of the

Gilboa Dam The Schoharie Reservoir is a reservoir in the Catskill Mountains of New York State that was created to be one of 19 reservoirs that supplies New York City with water. It was created by impounding Schoharie Creek. Portions of it lie in the towns ...

. The probable relationships within

Equisetopsida Equisetidae is one of the four subclasses of Polypodiopsida (ferns), a group of vascular plants with a fossil record going back to the Devonian. They are commonly known as horsetails. They typically grow in wet areas, with whorls of needle-like ...

are shown in the cladogram below. The position where ''Ibyka'' would be has been added.

References

Ferns Devonian plants Prehistoric plant genera {{devonian-plant-stub