†subfamily Orthothyridinae Muir-Wood 1965 (lamp shell)

Rhynchonellata - Terebratulida - Chlidonophoridae

Parent taxon: Chlidonophoridae according to A. Williams et al. 2006

See also Cooper 1973

Sister taxa: Agulhasiinae, Chlidonophorinae, Draciinae, Eucalathinae

Subtaxa: Orthothyris

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Type: Orthothyris

Ecology: stationary low-level epifaunal suspension feeder

Distribution:

• Eocene to Oligocene of Germany (1 collection)

• Eocene of Austria (12), Hungary (2), Italy (1), the United Arab Emirates (1)

• Cretaceous of Cuba (1)

Total: 18 collections each including a single occurrence

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