alignoida
Alignoida is a term that appears in scattered taxonomic writings but does not have a universally accepted definition or status as a recognized group. The name is formed from align-, suggesting a linear or aligned arrangement, together with the common zoological suffix -oida. In practice, alignoida has been used as an informal or provisional label to denote a supposed clade defined more by implied alignment of features than by a clear, shared diagnostic character. Because of this lack of consistent criteria, alignoida is not treated as a valid taxon in major databases or taxonomic checklists.
Usage varies between works. Some authors employ alignoida as a placeholder in discussions of phylogeny or comparative
Taxonomic status: no formal rank, no universally recognized definition, and no designated type specimen. Consequently, alignoida
See also: oidea and oida (suffixes used in taxonomic naming), taxonomic nomenclature, placeholders in taxonomy.