Echinodermata

Polytryphocycloides Smith et Paul, 1982

Selection of related publications
Franzén, C. 1979. Echinoderms. Sveriges Geologiska Undersökning 73, 3, 216-224. Lower Wenlock faunal and floral dynamics - Vattenfallet section, Gotland, pp. 216-224.
Regnéll, G. 1945. Non-Crinoid Pelmatozoa from the Paleozoic of Sweden. A taxonomic study. Meddelanden från Lunds Geologisk-Mineralogiska Institution 108, 1-255.
References based on distribution