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Tuvinia

Rhynchonellata - Orthida - Orthidiellidae

Taxonomy
Tuvinia was named by Andreeva (1982) [Sepkoski's age data: O m Sepkoski's reference number: 538]. Its type is Tuvinia radiata.

It was assigned to Orthida by Sepkoski (2002); and to Orthidiellidae by Williams et al. (2000) and Nikitina et al. (2006).

Species

Synonymy list
YearName and author
1982Tuvinia Andreeva pp. 53 - 54
2000Tuvinia Williams et al. p. 746
2002Tuvinia Sepkoski
2006Tuvinia Nikitina et al. p. 200

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
Lophophorata
PanbrachiopodaCarlson and Cohen 2020
RankNameAuthor
phylumBrachiopodaCuvier 1805
subphylumRhynchonelliformeaWilliams et al. 1996
classRhynchonellataWilliams et al. 1996
orderOrthidaSchuchert and Cooper 1932
suborderOrthidinaSchuchert and Cooper 1932
superfamilyOrthoideaWoodward 1852
familyOrthidiellidaeUlrich and Cooper 1936
genusTuvinia

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.

G. †Tuvinia Andreeva 1982
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Tuvinia alakulica Nikitina et al. 2006
Tuvinia fasciculata Nikitina et al. 2006
Tuvinia radiata Andreeva 1982
Diagnosis
ReferenceDiagnosis
O. I. Nikitina et al. 2006Shell ventribiconvex; anterior commissure gently sulcate; radial ornament costellate. Ventral interarea apsacline, deltidium narrow, arched, imperforate. Dorsal interarea short, anacline; notothyrium open or closed partly by chilidial plates. Ventral interior with a shallow delthyrial cavity, occupied by small undifferentiated muscle field; teeth short, stout, supported by low, slightly divergent dental plates; mantle canals saccate, vascula media straight, slightly divergent. Dorsal interior with a broad, poorly defined notothyrial cavity that bears a short, blade-like cardinal process posteriorly; brachiophores short with stout bases; adductor muscle scars are paired elongate oval depressions separated by a broad median ridge; dorsal mantle canals digitate.