†family Contractenidae Ljaschenko 1973

Tentaculita - Contractenidae

Parent taxon: Tentaculitida according to N. M. Farsan 1994

Sister taxa: Cornulitida, Costatulitidae, Dentiannulatidae, Gotlandellitidae, Hemicricus, Laminitidae, Ljaschenkovites, Longulatus, Microconchida, Multiconidae, Samarites, Sektionitidae, Tentaculitidae, Uniconidae, Vjalovites

Subtaxa: Contractenus Semicyclus

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Ecology: stationary semi-infaunal suspension feeder

Distribution:

• Devonian of Poland (1 collection), United States (1: Alaska)

Total: 2 collections each including a single occurrence

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