Kowalatrochus, Krawczyński, 2002

Krawczyński, Wojciech, 2002, Frasnian gastropod synecology and bio-events in the Dyminy reef complex of the Holy Cross Mountains, Poland, Acta Palaeontologica Polonica 47 (2), pp. 267-288 : 276

Genus Kowalatrochus gen. nov.

Type species: Kowalatrochus sanctacrucensis gen. et sp. nov.

Type horizon and locality: Active quarry “Kowala” near Kielce , set A 2, the upper Sitkówka Beds, early Frasnian .

Derivation of the name: From type locality Kowala and trochus from trochiform shell.

Diagnosis.— Kowalatrochus gen. nov. differs from similar Yunnania Mansuy, 1912 by the shape of its shell. Yunnania has a turbiniform shell with an anomphalous base. Compsonema Gordon and Yochelson, 1983 has a narrow phaneromphalous base with a circumumbilical ridge. The relatively large trochiform shell and cryptomphalous base of Kowalatrochus distinguishes it from other representatives of the family Holopeidae (see Knight 1941; Knight et al. 1960; Gordon and Yochelson 1983). Protoconch unknown. Teleoconch has a stable ontogenic development.

Species assigned.—Only the type species.