Lycopsida (Spanish Wikipedia)

Analysis of information sources in references of the Wikipedia article "Lycopsida" in Spanish language version.

refsWebsite

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bioone.org

Jason Hilton & Richard M. Bateman 2006, Pteridosperms are the backbone of seed-plant phylogeny. The Journal of the Torrey Botanical Society 133(1):119-168.

Preface to “Linear sequence, classification, synonymy, and bibliography of vascular plants: Lycophytes, ferns, gymnosperms and angiosperms” http://www.mapress.com/phytotaxa/content/2011/f/pt00019p006.pdf
Corrections to Phytotaxa 19: Linear sequence of lycophytes and ferns http://www.mapress.com/phytotaxa/content/2011/f/pt00028p052.pdf

A. R. Smith, K. M. Pryer, E. Schuettpelz, P. Korall, H. Schneider, P. G. Wolf. 2006. "A classification for extant ferns". Taxon 55(3), 705-731 ( pdf)