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Securella securis

Bivalvia - Cardiida - Veneridae

Taxonomy
Venus securis was named by Shumard (1858). It is extant. It is the type species of Securella.

It was recombined as Venus (Chione) securis by Grant and IV and Gale (1931); it was recombined as Chione securis by Clark (1932) and Weaver (1942); it was recombined as Chione (Securella) securis by Trumbull and Schumard (1958); it was recombined as Securella securis by Parker (1949) and Faustman (1964).

Synonyms
  • Venus parapodema was named by Dall (1909). Its type specimen is USNM 143944, a shell, and it is a 3D body fossil.

    It was recombined as Chione parapodema by Weaver (1942); it was synonymized subjectively with Securella securis by Parker (1949).
Synonymy list
YearName and author
1858Venus securis Shumard p. 122
1909Venus parapodema Dall p. 122 figs. pl. 11, fig. 11; pl. 13, fig. 1
1931Venus (Chione) securis Grant, IV and Gale
1932Chione securis Clark
1942Chione securis Weaver p. 162
1942Chione parapodema Weaver p. 164
1949Securella securis Parker p. 593 figs. Plate 94, figures 8, 12, 19; plate 95, figure 6
1958Chione (Securella) securis Trumbull and Schumard
1964Securella securis Faustman p. 120

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
phylumMollusca
classBivalvia
Eubivalvia
subclassAutobranchia(Groblen 1894)
infraclassHeteroconchia(Gray 1854)
CardiomorphiFerussac 1822
RankNameAuthor
CardioniFerussac 1822
CardiidiaFerussac 1822
CardiataFerussac 1822
superorderCardiiformiiFerussac 1822
orderCardiidaFerussac 1822
suborderCardiidinaFerussac 1822
Veneroidei(Gray 1854)
VeneroiteiGray 1854
superfamilyVeneroidea(Rafinesque 1815)
familyVeneridaeRafinesque 1815
genusSecurella
speciessecuris(Shumard 1858)

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.

Securella securis Shumard 1858
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Invalid names: Venus parapodema Dall 1909 [synonym]
Diagnosis
ReferenceDiagnosis
U. S. Grant, IV and H. R. Gale 1931Shell of medium size, elongate-trigonal, the posterior dorsal margin long and but slightly curved, at the extremity curving abruptly into the strongly convex ventral margm, anterior extremity short, the anterior dorsal margin descending abruptly and partly concavely from the beaks; sculpture similar to that of V. gnidia but weathered into various aspects; hinge similar to that of gnidia.