2992245
type: TaxonName
creator: www.organismnames.com
title: Didymograptus major
name complete: Didymograptus major
nomenclatural code: ICZN
published in: Early Ordovician graptolites from Big Canyon, Oklahoma. Journal of Paleontology Menasha , 19(6) 1945: pp. 007-011. [Zoological Record Volume 83]