Subclass

Cephalodiscida Fowler, 1892

Selection of related publications
Öpik, A. 1930. Beiträge zur Kenntnis der Kukruse-(C2-C3-)Stufe in Eesti. IV. Tartu Ülikooli Geoloogia Instituudi Toimetused 24, 1-34.
List of species
1. Melanostrophus fokini Öpik, 1930 | Kukruse Stage→Idavere Substage
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Classification
Organism groupBiota
KingdomAnimalia
PhylumHemichordata
ClassPterobranchia
SubclassCephalodiscida
FamilyCephalodiscidae
SubclassGraptolithina