Class

Echinoidea Leske, 1778

sea urchins

Selection of related publications
Thompson, J. R., Cotton, L. J., Candela, Y., Kutscher, M., Reich, M., Bottjer, D. J. 2022. The Ordovician diversification of sea urchins: systematics of the Bothriocidaroida (Echinodermata: Echinoidea). Journal of Systematic Palaeontology 19, 20, 1395-1448. DOI:10.1080/14772019.2022.2042408
Schallreuter, R. 1989. Ordovizische Seeigel aus Geschieben. Geschiebekunde aktuell 5, 1, 3-16.
Bockelie, J. F., Briskeby, P. I. 1980. The presence of a bothriocidarid (Echinoid) in the Ordovician of Norway. Norsk Geologisk Tidsskrift 60, 89-91.
Franzén, C. 1979. Echinoderms. Sveriges Geologiska Undersökning 73, 3, 216-224.
Kier, P. M. 1973. A new Silurian echinoid genus from Scotland. Palaeontology 16, 4, 651 – 663.
Männil, R. M. 1962. The taxonomy and morphology of Bothriocidaris (Echinoidea). ENSV TA Geoloogia Instituudi uurimused IX, 143-181.
Regnéll, G. 1956. Silurian Echinoids from Gotland. Arkiv för kemi, mineralogi och geologi 2, 155-178.
Mortensen, T. 1930. Bothriocidaris and the Ancestry of Echinoids. Videnskabelige Meddelelser fra Dansk Naturhistorisk Forening i Kjobenhavn 90, 313-352.
Klem, M. J. 1904. A Revision of the Palaeozoic Palaeechinoidea, with a Synopsis of All Known Species. Transactions of the Academy of Science of Saint Louis 14, 1, 1-98.
Eichwald, E. 1860. Lethaea Rossica ou Paléontologie de la Russie. Premier volume. Ancienne Période en deux sections. pp. XIX+1–1657. E. Schweizerbart. DOI:10.5962/bhl.title.52391
List of species
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Classification
Organism groupBiota
KingdomAnimalia
PhylumEchinodermata
SubphylumEleutherozoa
ClassAsteroidea
Echinoidea
OrderBothriocidaroida
Perischoechinoidea
FamilyArchaeocidaridae
ClassEdrioasteroidea
Holothuroidea
Ophiocistoidea
Ophiuroidea
See also