ammonites
Aroonia Bengtson et al. 1990

Siphonoconcha - Tianzhushanelliformes - Tianzhushanellidae

Full reference: S. Bengtson, S. Conway Morris, B. J. Cooper, P. A. Jell, and B. N. Runnegar. 1990. Early Cambrian fossils from South Australia. Association of Australasian Palaeontologists 9:1-364

Parent taxon: Tianzhushanellidae according to S. Bengtson et al. 1990

Sister taxa: Apistoconcha, Tianzhushanella

Subtaxa: Aroonia seposita

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Type: Aroonia seposita

Ecology: suspension feeder