Name: Eumycetozoa L.S. Olive nom. inval.
Most Confident Observations:
Copyright © 2020 Drew Henderson (Hendre17)
Copyright © 2012 Megan Ralph (dryadranch)
Copyright © 2015 Megan Ralph (dryadranch)
Version: 7
Previous Version 

First person to use this name on MO: Thomas Laxton
Editors: Danny Newman, Joseph D. Cohen, Jacob Kalichman


Rank: Phylum

Status: Accepted

Name: Eumycetozoa

[#90134] Index Fungorum

[#90134] MycoBank

Author: L.S. Olive nom. inval.

Citation: The Mycetozoans: 4 (1975)

Deprecated Synonyms: Mycetozoa de Bary ex Rostaf., Mycetozoa L.S. Olive, Mycetozoa Engl., Mycetozoa Caval.-Sm.

Misspellings: Plasmodium, Slime mold


Domain: Eukarya

Kingdom: Protozoa

Notes on Taxonomy: [Edit]

A list of reference materials:


2019 Leontyev, Dmitry V. et al. Towards a phylogenetic classification of the Myxomycetes. Phytotaxa, [S.l.], v. 399, n. 3, p. 209–238, mar. 2019. ISSN 1179-3163.

2017 Schnittler, Martin & Shchepin, Oleg & Dagamac, Nikki Heherson & Borg Dahl, Mathilde & Novozhilov, Yuri. (2017). Barcoding myxomycetes with molecular markers: Challenges and opportunities. Nova Hedwigia. 104. 323-341.

2008 Keller, Harold & Kilgore, Courtney & Everhart, Sydney & Carmack, Glenda & Crabtree, Christopher & Scarborough, Angela. (2008). Myxomycete plasmodia and fruiting bodies: Unusual occurrences and user friendly study techniques. Fungi. 1. 24-37.


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Re validity of Eumycetozoa
By: Joseph D. Cohen (Joe Cohen)
2020-02-06 18:10:32 CST (-0500)

Looks like IF & MB are caught up. For instance they include Ceratiomyxomycetes from the Phytotaxa paper. Nomenclature: [#826861]: IF, MB

So likely what’s in that article falls short of the formal requirements of the ICN.

it’s worth noting
By: Danny Newman (myxomop)
2020-02-06 17:05:50 CST (-0500)

that while the apparent latest and greatest publication on the higher taxonomy and phylogeny of the slime molds prominently features the use of Eumycetozoa to denote “a monophyletic group formed by the Myxomycetes, Dictyosteliomycetes and Ceratiomyxomycetes,” IF lists it as a nom. inval. under Art. 39.1 (Melbourne), which means it lacks a diagnosis. MB also calls it invalid, but cites 36.1, which is… significantly more complicated. Are both databases behind the times and missing the valid (re)publication in Leontyev at al., 2019 (, or are there lingering problems? Is it something to do with ICZN vs ICN classification schema?

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