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. Author manuscript; available in PMC: 2019 Mar 1.
Published in final edited form as: Nature. 2018 Aug 22;561(7722):235–238. doi: 10.1038/s41586-018-0445-z

Extended Data Figure 1. Five root apices were found on three thin sections in which Asteroxylon mackiei was the only plant species present.

Extended Data Figure 1

Diagnostic features of A. mackiei include the apices of leafy shoots (black arrowhead in a), star shaped xylem (black arrowhead in b) and leaves (black arrowhead in c). (a) GLAHM Kid 3080, (b) NHMUK V.15642, (c) OXF 108. Scale bars 1 cm.