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Archaeorthis altaica
Taxonomy
Archaeorthis altaica was named by Rozman and Severgina (1983). It is a 3D body fossil. Its type locality is Llandeilian brachiopods of Gorny Altai, Lebed' Riverbasin, Salasan Creek, which is in a Darriwilian marine sandstone/claystone in the Bugryshikha Formation of the Russian Federation.