Vegetation included giant club mosses, tree ferns, great horsetails, and towering trees with strap-shaped leaves. Over millions of years, the organic deposits of this plant debris formed the world ...

Week 2: Seedless vascular plants This week we’ll transition into the world of vascular plants, beginning with ferns, horsetails and club mosses. Once the dominant plant forms during the Carboniferous ...

Sprawling forests primarily made of club mosses and horsetails towered across much of the terrestrial landscape, under which thrived vast swamps of murky water and unfamiliar creatures.