Editing Microdictyon (section)

== Taxonomy ==
Except for ''Microdictyon sinicum'' from the Chengjiang Biota and ''Microdictyon'' sp. from the [[Kaili Formation|Kaili Biota]], all ''Microdictyon'' species have been established on the basis of isolated sclerite plates. As of the publication of Topper et al. (2011),<ref name="topper2011">{{cite journal |last1=Topper |first1=Timothy P. |last2=and Paterson |first2=John R. |title=Microdictyon plates from the lower Cambrian Ajax Limestone of South Australia: Implications for species taxonomy and diversity |journal=Alcheringa: An Australasian Journal of Palaeontology |date=1 September 2011 |volume=35 |issue=3 |pages=427–443 |doi=10.1080/03115518.2011.533972 |bibcode=2011Alch...35..427T |url=https://www.tandfonline.com/doi/abs/10.1080/03115518.2011.533972 |issn=0311-5518|url-access=subscription }}</ref> 9 species of ''Microdictyon'' were recognized as valid, and after Wotte and Sundberg (2017),<ref name=wotte2017>{{Cite journal|author1=Thomas Wotte |author2=Frederick A. Sundberg |year=2017 |title=Small shelly fossils from the Montezuman–Delamaran of the Great Basin in Nevada and California |journal=Journal of Paleontology |volume=91 |issue=5 |pages=883–901 |doi=10.1017/jpa.2017.8 |bibcode=2017JPal...91..883W |doi-access=free }}</ref> 11 species, with a large number of specimens around the world still left in open nomenclature. Because the shape and outline of the plate varies down the length of the animal, and size will be determined by age, only node morphology and the arrangement of the holes is considered effective in determining species.<ref name="topper2011" /><ref name="wotte2017" />

* [[Type species]] '''''Microdictyon effusum''''' <small>Bengston, Matthew, and Missarzhevsky, 1981</small> (Cambrian Series 2, Stage 3) — Known from [[Kazakhstan]], [[siberia|Russia]], and [[Sweden]], possibly [[China|South China]] and the [[United Kingdom|UK]].
** {{extinct}}'''''M. rhomboidale''''' <small>Bengston, Matthew, and Missarzhevsky, 1986</small> (Cambrian Series 2, Stage 3) — Known from [[Uzbekistan]] and Russia, possibly South China, [[Canada]], and the [[United States|USA]].
** {{extinct}}'''''M. robisoni''''' <small>Bengston, Matthew, and Missarzhevsky, 1986</small> (Cambrian Series 3, Stage 5) — Known from Russia and the USA.
** {{extinct}}'''''M. chinense''''' <small>Hao and Shu, 1987</small> (Cambrian Series 2, Stage 3) — Known from South China.
** {{extinct}}'''''M. sphaeroides''''' <small>Hinz, 1987</small> (Cambrian Series 2, Stage 3 to Cambrian Series 3, Stage 5) — Known from Russia and the UK.
** {{extinct}}'''''M. sinicum''''' <small>Chen, Hou, and Lu, 1989</small> (Cambrian Series 2, Stage 3) — Known from South China ([[Chengjiang Biota]]).<ref name="junyuan1995" />
** {{extinct}}'''''M. depressum''''' <small>Bengston ''et al''., 1990</small> (Cambrian Series 2, Stage 3 to Cambrian Series 2, Stage 4) — Known from [[Australia]], possibly [[Greenland]].
** {{extinct}}'''''M. fuchengense''''' <small>Li and Zhu, 2001</small> (Cambrian Series 2, Stage 3) — Known from South China.
** {{extinct}}'''''M. jinshaense''''' <small>Zhang and Aldridge, 2007</small> (Cambrian Series 2, Stage 3) — Known from South China.<ref name="zhang2007" />
** {{extinct}}'''''M. montezumaensis''''' <small>Wotte and Sundberg, 2017</small> (Cambrian Series 2, Stage 3) — Known from the USA.<ref name="wotte2017" />
** {{extinct}}'''''M. cuneum''''' <small>Wotte and Sundberg, 2017</small> (Cambrian Series 2, Stage 3) — Known from the USA.<ref name="wotte2017" />

Additional, unnamed species are also known from North China, [[Mongolia]], [[Turkey]], and [[Mexico]].<ref name="topper2011" />