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Wallucina

Bivalvia - Lucinida - Lucinidae

Taxonomy
Wallucina was named by Iredale (1930) [Sepkoski's age data: T Mi R]. It is extant.

It was assigned to Lucininae by Cox et al. (1969) and Vokes (1980); to Veneroida by Sepkoski (2002); and to Lucinidae by Lamprell and Whitehead (1992) and Glover and Taylor (2007).

Synonymy list
YearName and author
1930Wallucina Iredale p. 390
1969Wallucina Cox et al. p. 499
1980Wallucina Vokes p. 102
1992Wallucina Lamprell and Whitehead p. 46
2002Wallucina Sepkoski, Jr.
2007Wallucina Glover and Taylor p. 161

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
Schizocoela
phylumMollusca
classBivalvia
Eubivalvia
RankNameAuthor
subclassAutobranchia(Groblen 1894)
infraclassHeteroconchia(Cox 1960)
CardiomorphiFerussac 1822
CardioniFerussac 1822
LucinidiaGray 1854
orderLucinida(Stoliczka 1871)
superfamilyLucinoideaFleming 1828
familyLucinidaeFleming 1828
genusWallucinaIredale 1930

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
E. A. Glover and J. D. Taylor 2007Shells small, subcircular in outline. Moderately infl ated, relatively thin-shelled. Sculpture of fine, closely spaced commarginal lamellae, sometimes slightly raised to posterior, fi ne radial striations sometimes present. Hinge plate narrow. RV with single cardinal tooth and
posterior lateral tooth, anterior lateral absent or very small. LV with two cardinal teeth and a posterior lateral tooth. Ligament internal, set in elongate, oblique resilifer. Anterior adductor muscle scar elongate, detached from pallial line for about 1/2 to 1/3 of length. Pallial line irregularly lobed and divided. Inner shell margin finely crenulate.