Echinodermata

Parasphaeronitidae Bockelie, 1984

Selection of related publications
Bockelie, J. F. 1984. The Diploporita of the Oslo region, Norway. Palaeontology 27, 1, 1-68.
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