Echinodermata

Sphaeronitida Neumayr, 1889

Selection of related publications
Sheffield, S. L., Sumrall, C. D. 2019. The phylogeny of the Diploporita: a polyphyletic assemblage of blastozoan echinoderms. Journal of Paleontology 93, 04, 740-752. DOI:10.1017/jpa.2019.2
Bockelie, J. F. 1984. The Diploporita of the Oslo region, Norway. Palaeontology 27, 1, 1-68.
Paul, C. R. C., Bockelie, J. F. 1983. Evolution and Functional Morphology of the Cystoid Sphaeronites in Britain and Scandinavia. Palaeontology 26, 4, 687-734.
Bockelie, J. F. 1981. Symmetry and ambulacral pattern of the rhombiferan superfamily Caryocystitida and the relationship to other Blastozoa. GFF 103, 4, 491-498. DOI:10.1080/11035898209453726
Regnéll, G. 1945. Non-Crinoid Pelmatozoa from the Paleozoic of Sweden. A taxonomic study. Meddelanden från Lunds Geologisk-Mineralogiska Institution 108, 1-255.
Jaekel, O. 1899. Stammesgesihichte der Pelmatozoen. Erster Band. Thecoidea und Cystoidea.