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Rhynchonellata - Terebratulida - Notothyrididae
It was Rostranteris (Notothyrina) by Grunt and Dmitriev (1973); it was reranked as Notothyrina by Sepkoski (2002), Williams et al. (2006) and Smirnova (2007).
It was assigned to Notothyris by Licharew (1936); to Rostranteris by Grunt and Dmitriev (1973); to Terebratulida by Sepkoski (2002); and to Notothyrididae by Williams et al. (2006) and Smirnova (2007).
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.