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Limopsis (Pectunculina) grenadarum

Bivalvia - Arcida - Limopsidae

Taxonomy
Limopsis (Pectunculina) grenadarum was named by Jung (1971). Its type specimen is NMB No. G 14067, a shell, and it is a 3D body fossil.

Synonymy list
YearName and author
1971Limopsis (Pectunculina) grenadarum Jung p. 162 figs. pl, 1, fig. 1, 2

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
phylumMollusca
classBivalvia
Eubivalvia
subclassAutobranchia(Groblen 1894)
RankNameAuthor
infraclassPteriomorphia(Beurlen 1944)
OstreomorphiFerussac 1822
ArcioniGray 1854
orderArcida(Stoliczka 1871)
superfamilyLimopsoideaDall 1895
familyLimopsidaeDall 1895
genusLimopsisSassi 1827
subgenusPectunculina
speciesgrenadarum

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
P. Jung 1971Of medium size, inequilateral, moderately inflated. Concentric sculpture consists of rounded ridges of varying width. Interspaces wider than concentrics. Radial sculpture poorly developed, usually restricted to posterior portion of shell. On the central part of the shell the radial striae are visible only in the interspaces. Beaks situated slightly anteriorly. Ligamental pit triangular. Hinge interrupted centrally, with five teeth on both sides. Anterior muscle scar situated just below anterior end of hinge. Posterior muscle scar about twice as large as anterior one. Inner margin finely fluted ventrally and posterio-ventrally.