Bazsites.com Lycopodiophyta
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- Lycopodiophyta - Silurian to recent
- Asteroxylon - Asteroxylon ("star-shaped xylem") is a genus of plants of the Division Lycopodiophyta known from Early Devonian (~400 million year old) sediments in Britain, and is probably a stem group to the Drepanophycaceae.
- Drepanophycus - Drepanophycus is a genus of extinct plants of the Division Lycopodiophyta of Early to Late Devonian age, found in Eastern Canada and Northeast USA, China, Russia, and various parts of Northern Europe and Britain.
- Isoetopsida - The Isoetopsida is a class of the Lycopodiophyta. All living plants belong to the genus Isoetes in the order Isoetales.
- Microphyll - Microphyll refers to the leaves of the Lycopodiophyta. Each has only a single, unbranched vascular trace ("vein"), and is typically but not always photosynthetic.