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Riograndella

Rhynchonellata - Orthida - Archaeorthidae

Taxonomy
Riograndella was named by Kobayashi (1937) [Sepkoski's age data: O]. It is not extant.

It was assigned to Nanorthidae by Williams et al. (2000); to Orthida by Sepkoski (2002); and to Archaeorthidae by Williams et al. (2007).

Synonymy list
YearName and author
1937Riograndella Kobayashi
2000Riograndella Williams et al. p. 745
2002Riograndella Sepkoski, Jr.
2007Riograndella Williams et al. p. 2690

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Eutriploblastica
Neotriploblastica
Eucoelomata
superphylumLophotrochozoa
Lophophorata
phylumBrachiopodaCuvier 1805
RankNameAuthor
subphylumRhynchonelliformeaWilliams et al. 1996
classRhynchonellataWilliams et al. 1996
orderOrthidaSchuchert and Cooper 1932
suborderOrthidinaSchuchert and Cooper 1932
superfamilyOrthoideaWoodward 1852
familyArchaeorthidae
genusRiograndellaKobayashi 1937

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.

Diagnosis
No diagnoses are available