Colony structure and systematic assignment of Cladochonus tenutcollis McCoy, 1847 (Hydroidea)
Anna Stasińska
Colony and corallite structure of Cladochonus tenuicollis such as: the lack of tabulae and septal apparatus, presence of diaphragms between corallites, as well as the sympodial mode of budding, are different than in tabulates. These features make Cladochonus close to Hydroidea. Analysis of structure of the Carboniferous species C. parasitica Vassiljuk proves that it is a junior synonym of C. tenuicollis McCoy.
Key words: Hydroidea, systematics , colony structure, corallite structure.
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