How and why to achieve greater objectivity in taxonomy, exemplified by a fossil ostracod (Amplocypris abscissa) from the Miocene Lake Pannon.

ABSTRACT: A project on fossil ostracods from Hennersdorf (Vienna Basin, Middle Pannonian "E" stage) documents the non-marine ostracod Amplocypris abscissa (Reuss 1850) as a polymorphic taxon. The high morphological variability of the valves belonging to this species and its geographic distribution in the Lake Pannon point to a widely spread fossil taxon. This traditional view emerges from the fact that A. abscissa displays few homologous "landmarks" (morphological reference points) which makes it difficult to compare morphotypes within and among populations. The present contribution offers arguments for the need of objective criteria when describing ostracods with few visible morphological traits. It is demonstrated that using a composite algorithmic approach which combines information implem

SUBMITTER: Danielopol DL 

PROVIDER: S-EPMC5229259 | biostudies-literature | 2011

REPOSITORIES: biostudies-literature