ammonites
†family Lapworthellidae Rozanov and Missarzhevsky 1966 (lamp shell)

Brachiopoda - Tommotiida

Full reference: A.Y. Rozanov and V.V. Missarzhevsky. 1966. Biostratigraphy and fauna of Lower Cambrian beds. Trudy Geoligske Institut Moscow 148:1-126

Parent taxon: Tommotiida according to E. Landing 1984

Sister taxa: Hyolithelminthes, Jaycea, Kulparina, Mitrosagophora, Sunnaginiidae, Tannuolinidae

Subtaxa: Lapworthella

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Ecology: facultatively mobile epifaunal suspension feeder