Zur Entwicklung und Taxionomie der Tricornidae (Ostracoda) in Mitteleuropa

This paper is an attempt to summarize the existing knowledge on the Tricornidae Contrary toBlumenstengel (1965) the range of the family is vastly extended and its position as well as the taxonomic significance of its characteristic features are discussed. Several trends as to lateral view, strengthening of sculpture and marginal structures can be discerned within the entire generic group consisting ofOvornina—Tricornina—Bohemina—Saalfeldella. Probably these genera listed constitute a genuine phylogenetic line. The author gives a review on the range and delimitations of the most important genera. As a new genusOvornina (type speciesTricornina ovata Blumenstengel 1962; Ordovician—Devonian) is described; new subgenera of the same genus areOvornina andTricornella.