1963Multitubus spinosus sp. nov. — Skevington, pp. 52-54, fig. 73-74
Selection of related publications
Skevington, D. 1963.
Graptolites from the Ontikan Limestones (Ordovician) of Öland, Sweden. I: Dendroidea, Tuboidea, Camaroidea, and Stolonoidea.Bulletin of the Geological Institutions of the University of Uppsala42,
1-62.