|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Rhynchonellata - Athyridida - Athyrididae
It was recombined as Athyris royssiana by Geinitz (1861); it was recombined as Athyris (Cliothyris) royssiana by Tschernyschew (1902); it was recombined as Athyris (Cleiothyridina) roissyana by Reed (1944); it was recombined as Cleiothyridina royssiana by Grigor'yeva (1967); it was recombined as Pinegathyris royssiana by Grunt (1980) and Grunt (1986).
|Year||Name and author|
|1846||Terebratula royssiana Keyserling p. 237|
|1861||Athyris royssiana Geinitz p. 87|
|1902||Athyris (Cliothyris) royssiana Tschernyschew p. 103 figs. Pl 43, figs 11,12|
|1944||Athyris (Cleiothyridina) roissyana Reed p. 265 figs. Pl 36, figs 1,2|
|1967||Cleiothyridina royssiana Grigor'yeva fig. 3|
|1980||Pinegathyris royssiana Grunt p. 91 figs. Pl 10, figs 1-7; pl 11, figs 1,2; text-figs 44-46|
|1986||Pinegathyris royssiana Grunt figs. Pl 8, figs 2-4, 6|
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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.