Citations total:
link From To Geolocation Author - title Year
original Frasnian Canada(Alberta) Jansonius,J. et al. Scolecodonts 1. Descriptive terminology and revision of systematic nomenclature; 2.Lectotypes, new names for homonyms, Index of species. 1971
details Late Pennsylvanian Kansas Brainard,R.H. Scolecodonts from the Leaven Limestone and Snyder Ville Shale of eastern Kansas. 1978