†subfamily Phalacrominae Raymond 1913 (artiopod)

Artiopoda - Agnostida - Peronopsidae

Parent taxon: Peronopsidae according to H. J. Harrington and A. F. Leanza 1957

Sister taxa: Archaeagnostus, Diplorrhina, Gratagnostus, Itagnostus, Micagnostus, Pentagnostus, Peronopseinae, Peronopsella, Peronopsis, Quadragnostus, Redeagnostus

Subtaxa: Gallagnostus

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Ecology: nektonic suspension feeder

Distribution:

• Ordovician of Argentina (9 collections)

• Cambrian of France (1)

Total: 10 collections each including a single occurrence

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