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Table 2 A comparison of morphological characters between Jianchangia and other gnetalean macrofossils from northeastern China

From: A new macrofossil ephedroid plant with unusual bract morphology from the Lower Cretaceous Jiufotang Formation of northeastern China

TaxonFemale cone presentChlamydosperms pedicledChlamydosperms in a coneChlamydosperms sculpturedLiterature
Alloephedrayes, compactno2noTao & Yang 2003 [48]
Beipiaoayes, compactno2noSun & al. 2001 [47]
Chengiayes, but laxly arranged into spikesnoMany in multiple whorlsnoYang & al. 2013 [16]
Constrobilusyes, compactno2noLiu & al. 2013 [43]
Ephedra archaeorhytidospermayes, compactno1-2transversely wrinkledYang & al. 2005 [51]
E. carnosayes, compactno1-3noYang & Wang 2013 [54]
E. hongtaoiyes, compactno2noWang & Zheng
E. multinerviayes, compactno2noYang & al. 2015 [52]
Gurvanellayes, compactnousually 3noSun & al. 2001 [47]
Jianchangiayes, compactno2noThis study
Latibracteayes, compactno--Liu & al. 2013 [43]
Liaoxia cheniaeyes, compactnomanynoRydin & al. 2006 [26, 46]
Prognetellano, in reproductive shootsnopaired at nodes of reproductive shootsnoYang & Ferguson 2015 [15]
Protognetum jurassicumlaxly arranged spikesno4-6 whorled at nodes of a reproductive shootnoYang & al. 2017 [1, 59]
Pseudoephedranoyesnot organized into a conenoLiu & Wang 2016 [44]
Siphonospermum simplexnoyespediclednoRydin & Friis 2010 [45]
Spinobracteayes, more or less in lax spikesno1-2noLiu & al. 2013 [43]