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|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Rhynchonellata - Orthida - Plectorthidae
It was reranked as Orthis (Plectorthis) by Reed (1917).
It was assigned to Orthis by Reed (1917); to Plectorthinae by Phleger (1933), Wright (1964), Mitchell (1977) and Owen and Harper (1982); to Plectorthidae by Williams et al. (2000); and to Orthida by Sepkoski (2002).
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