Acta Palaeontologica Polonica

Desmidopora and Nodulipora: misfits in the coral world

Jan H. Stel and Klemens Oekentorp

Acta Palaeontologica Polonica 25 (3-4), 1980: 403-417

Skeletal morphology and its variation are described in Desmidopora alveolaris and in Nodulipora acuminata. The features of these Sllurian fossils suggest sclerosponge affinities. Pores are present in both species and the surface of Nodulipora carries astrorhizae. A comparison is made between skeletons of sclero, sponges and tabulates: favositids are interpreted as the skeletons of sponges.

Key words: Sclerospongiae, morphol0l;y, taxonomy, relationships, Silurian.

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