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A new Early Cretaceous relative of Gnetales: Siphonospermum simplex gen. et sp. nov. from the Yixian Formation of Northeast China

BACKGROUND: Knowledge on fossil and evolutionary history of the Gnetales has expanded rapidly; Ephedra and ephedroids as well as the Gnetum-Welwitschia clade are now well documented in the Early Cretaceous. However, hypotheses on evolutionary relationships among living and fossil species are hampere...

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Main Authors: Rydin, Catarina, Friis, Else Marie
Format: Artigo
Jezik:Inglês
Izdano: BioMed Central 2010
Teme:
Online dostop:https://ncbi.nlm.nih.gov/pmc/articles/PMC2900273/
https://ncbi.nlm.nih.gov/pubmed/20565755
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1186/1471-2148-10-183
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