†order Spirophorida Bergquist and Hogg 1969 (demosponge)

Demospongiae - Spirophorida

Parent taxon: Tetractinomorpha according to R. K. Bambach et al. 2007

Sister taxa: Alpinothalamiidae, Atractosella, Axinellida, Belemnospongia, Criccospongiidae, Incrustospongia, Petrosites, Streptosclerophorida, Syltrochos

Subtaxa: Samidae

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Ecology: stationary epifaunal suspension feeder

Distribution:

• Miocene of Portugal (1 collection), Slovakia (1)

• Eocene of Ukraine (1)

Total: 3 collections including 4 occurrences

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