ammonites
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Gateway to the Paleobiology Database
†class Obolellata (lamp shell)

Parent taxon: Rhynchonelliformea according to S. J. Carlson 2001

Sister taxa: Arzonella, Chileata, Kutorginata, Rhynchonellata, Salanygolinidae, Strophomenata

Subtaxa: Naukatida, Obolellida

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Ecology: stationary low-level epifaunal suspension feeder