Lycophytes

See More Images
(4 total)


Lycopsida
© 2010 Joggins Fossil Institute

Lepidodendron
Lepidodendron
© 2004 UCMP

Sigillaria
Sigillaria
© 2004 Indiana State Museum, Indiana Geological Survey, and Indiana University

What are Lycophytes? Lycophytes have small leaf-like features (microphylls) with veins that transport water and nutrients like the leaves of other plants. But the microphylls evolved from different structures than those that are ancestral to leaves. These leaf-like features look like scales on many fossils, hence the term “scale tree” that is used for a number of extinct lycophytes. Today, lycophytes are represented by the small club mosses, but in the past, some scale trees grew more than 35 meters tall.

First known fossil occurrence: Ordovician.

Last known fossil occurrence: Quaternary. This group has living relatives.

Cool Lycophytes links:

Search for images of Lycophytes on Google

help

site tour | about the site | site map | site credits | page credits | help | FAQs | contact
© | editorial policy | awards | teachers' guide | site generator | About RSS

paleontology news:   recent site additions: