nomen dubium


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nomen dubium

[′nō·mən ′dü·bē·əm]
(systematics)
A proposed taxonomic name invalid because it is not accompanied by a definition or description of the taxon to which it applies.
References in periodicals archive ?
We agree that this form was incorrectly identified by Matthew as a tetrapod track and should be regarded as a nomen dubium.
Pleijel (1998:162) regarded this species as nomen dubium because the type material was probably lost.
The absence of diagnostic features in the holotype of Loncornis erectus allows us to consider this taxon as a nomen dubium.
Thiodina irrorata KBJ; BEA; Nomen dubium, listed in
The Alyssion euboei has been rejected as a nomen dubium since the name of the next subordinate syntaxon supposed to typify the Alyssion euboei is considered a nomen dubium according to Art.
Antiopella aureocincta Johnson and Snook 1927; Steinberg, 1963, nomen dubium.
The species Araneus phrygiatus (Walckenaer 1842) is not recognizable based on the original description and considered a nomen dubium.