Cycadidae

Cycadidae
Scientific classification
Kingdom:	Plantae
Class:	Equisetopsida
Subclass:	Cycadidae; Pax in K.A.E.Prantl 1894
Order:	Cycadales; Pers. ex Bercht. & J.Presl 1820
Families
	Cycadaceae Pers. 1807; Zamiaceae Horan. 1834;

Cycadidae is a subclass of

Cycadaceae and Zamiaceae

.

Phylogeny

The following diagram shows a likely phylogenic relationship between subclass Cycadidae and the other Equisetopsida subclasses.[2]

Equisetopsida

	Marchantiidae

	Bryidae

	Anthocerotidae

Lycopodiidae

	Equisetidae

	Ophioglossidae

Marattiidae

Polypodiidae

	Cycadidae

	Ginkgoidae

	Gnetidae

	Pinidae

	Magnoliidae

bryophytes

lycopodiophytes

monilophytes

gymnosperms

angiosperms

References

doi:10.1111/j.1095-8339.2009.01002.x
.

^ Maarten J. M. Christenhusz; James L. Reveal; Aljos Farjon; Martin F. Gardner; Robert R. Mill; Mark W. Chase (2011). "A new classification and linear sequence of extant gymnosperms" (PDF). Phytotaxa. 19: 55–70.

Taxon identifiers
Cycadidae

Wikidata: Q5197912

APNI: 225054

ITIS: 954913

NCBI: 1445963

Open Tree of Life: 7579470

Tropicos: 50324774

WoRMS: 886442

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[Chase-2009-1] doi:10.1111/j.1095-8339.2009.01002.x
.

[Christenhusz-2011-2] Maarten J. M. Christenhusz; James L. Reveal; Aljos Farjon; Martin F. Gardner; Robert R. Mill; Mark W. Chase (2011). "A new classification and linear sequence of extant gymnosperms" (PDF). Phytotaxa. 19: 55–70.