819641
type: TaxonName
creator: www.organismnames.com
title: Sigmelasma
name complete: Sigmelasma
nomenclatural code: ICZN
published in: Middle and Late Ordovician brachiopods from the eastern Klamath Mountains, northern California. Part 2. Palaeontographica Abteilung A Palaeozoologie-Stratigraphie, 213(1-6) 1990: 1-114. 23 [Zoological Record Volume 127]
microreference: 23