A Simple Type of Wood in Two Early Devonian Plants

Gerrienne, Philippe; G. Gensel, Patricia; Strullu‐Derrien, Christine; Lardeux, Hubert; Steemans, Philippe; Prestianni, Cyrille

doi:10.1126/science.1208882

Public

A Simple Type of Wood in Two Early Devonian Plants

Published in Science • Aug 11, 2011

Authors:

Philippe Gerrienne

Patricia G. Gensel

Christine Strullu‐Derrien

Abstract

The advent of wood (secondary xylem) is a major event of the Paleozoic Era, facilitating the evolution of large perennial plants. The first steps of wood evolution are unknown. We describe two small Early Devonian (407 to 397 million years ago) plants with secondary xylem including simple rays. Thei...

Subject

Xylem

Devonian

Perennial plant

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