ammonites
Family Spirillinidae Reuss and Fritsch 1861 (foram)

Rhizaria

Parent taxon: Spirillinina according to A. R. Loeblich and H. Tappan 1984

Sister taxon: Patellinidae

Subtaxa: Conicospirillina, Spirillina, Turrispirillina

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Ecology: stationary semi-infaunal omnivore