Echinodermata

Ophiuroidea Gray, 1840

Selection of related publications
Shackleton, J. D. 2005. Skeletal homologies, phylogeny and classification of the earliest Asterozoan echinoderms. Journal of Systematic Palaeontology 3, 1, 29-114. DOI:10.1017/S1477201905001525
Hansen, T., Bruton, D. L. & Jakobsen. L. 2005. Starfish from the Ordovician of the Oslo Region, Norway. Norsk Geologisk Tidsskrift 85, 3, 209-216.