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Kozhuchinella

Strophomenata - Billingsellida - Billingsellidae

Taxonomy
Kozhuchinella was named by Severgina (1967) [Sepkoski's age data: O Trem Sepkoski's reference number: 878]. It is not extant.

It was assigned to Brachiopoda by Severgina (1984); to Billingsellidae by Laurie (1997) and Williams et al. (2000); and to Strophomenida by Sepkoski (2002).

Synonymy list
YearName and author
1967Kozhuchinella Severgina p. 131
1984Kozuchinella Severgina p. 48
1997Kozhuchinella Laurie pp. 181 - 182
2000Kozhuchinella Williams et al. p. 692
2002Kozhuchinella Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Eutriploblastica
Neotriploblastica
Eucoelomata
superphylumLophotrochozoa
Lophophorata
phylumBrachiopodaCuvier 1805
RankNameAuthor
subphylumRhynchonelliformeaWilliams et al. 1996
classStrophomenataWilliams et al 1996
orderBillingsellida
suborderBillingsellidina
superfamilyBillingselloidea
familyBillingsellidae
genusKozhuchinellaSevergina 1967

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
ReferenceDiagnosis
J. R. Laurie 1997Concavoconvex, outline transversely semiovate to rounded-quadrate, ornament unequally parvicostellate. Ventral interarea orthocline with apically perforate pseudodelfidium partly covering delthyrium. Dorsal interarea catacline to anacline, with large convex chilidium completely covering notothyrium. Ventral valve with subrhombic muscle field. Diductors subpyriform, distally separated by transversely rhombic adductor scar. Teeth small, dental plates weakly developed. Subperipheral rim well developed. Ventral mantle canal system digitate. Dorsal valve interior with broad median rise and well developed subperipheral rim. Socket ridges nearly straight, cardinal process a thin blade. Posterior adductor scars large, anterior adductor scars small. Vascular canal system digitate, unusual in having blind vascula myaria.