†subfamily Tetralobulinae Ulrich and Cooper 1936 (lamp shell)

Rhynchonellata - Pentamerida - Tetralobulidae

Parent taxon: Tetralobulidae according to A. Williams et al. 2002

Sister taxa: Punctolirinae, Syntrophopsinae, Tetralobula

Subtaxa: Disepta Doloresella Imbricatia

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Type: Tetralobula

Ecology: stationary epifaunal suspension feeder

Distribution:

• Arenig of Argentina (1 collection), China (3)

• Dawan of China (1)

• Canadian of United States (1: Maryland)

• Ordovician of China (6), United States (1: Montana)

Total: 13 collections each including a single occurrence

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