†subfamily Postibullinae Sumrall 2000

Edrioasteroidea - Isorophida - Agelacrinitidae

Parent taxon: Agelacrinitidae according to C. D. Sumrall et al. 2006

Sister taxa: Agelacrinites, Agelacrinitinae, Bellastrella, Cooperidiscus, Dinocystis, Discocystinae, Hystrichopsydrax, Krama, Lepidodiscus, Neoisorophusella, Persiadiskos, Postibulla, Savagella, Thresherodiscus, Ulrichidiscus

Subtaxa: Parapostibulla Pyrgopostibulla

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Ecology: stationary low-level epifaunal suspension feeder

Distribution:

• Carboniferous of United States (1: Oklahoma collection)

• Devonian of United States (2: New York)

Total: 3 collections each including a single occurrence

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