AI Article Synopsis

  • * The updated diagnosis helps distinguish Vejdovský from the related genus Kaufmann based on evolutionary lineage and the types of habitats they occupy, which include both living and fossil species from various geological periods.
  • * A detailed analysis of valve morphology and limb traits, using both transmitted light and scanning electron microscopy, is crucial for accurately describing Vejdovský taxa and differentiating them from other similar-looking groups.

Article Abstract

The taxonomy of the genus Vejdovský, 1882 is reviewed. New morphological information on (Vejdovský, 1882), the type species of the genus, is provided, and a new reference material is presented. The generic diagnosis is emended with details derived from the developmental trajectory of the valves, from the juvenile stage A-3 to the adult. Those criteria clearly differentiate from the related genus Kaufmann, 1900. As here redefined, is a phylogentic lineage of the subfamily Candoninae containing extant species presently living in aquatic subterranean habitats and fossil species recovered from non-marine Late Palaeogene to Neogene and Quaternary deposits in Europe and western Asia. The type species of is considered a metaspecies, taxonomically treated as (), which includes populations resembling the newly designated reference material. The homeomorphic triangular valve shape of the Candoninae is discussed. Careful examination of the valve morphology of combined with the analysis of limb traits helps to distinguish representatives of this genus from unrelated phylogenetic groups presenting similar triangularly shaped valves. It is emphasised that for a useful description of taxa both transmitted light and scanning electron microscopy are necessary.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5230036PMC
http://dx.doi.org/10.1163/15685403-00003338DOI Listing

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