765303
type: TaxonName
creator: www.organismnames.com
title: Sievertsia
name complete: Sievertsia
nomenclatural code: ICZN
published in: Free-living crinoids from the Korytnica Clays (Middle Miocene, Holy Cross Mountains, central Poland). Acta Geologica Polonica, 37(3-4) 1987: 113-129. 117 [Zoological Record Volume 126]
microreference: 117