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Taxonomy
Venus securis was named by Shumard (1858). It is extant.
It was recombined as Chione securis by Etherington (1931), Clark (1932), Weaver (1942); it was recombined as Venus (Chione) securis by Grant and IV and Gale (1931); it was recombined as Chione (Securella) securis by Trumbull and Schumard (1958); it was recombined as Securella securis by Parker (1949), Faustman (1964).
It was recombined as Chione securis by Etherington (1931), Clark (1932), Weaver (1942); it was recombined as Venus (Chione) securis by Grant and IV and Gale (1931); it was recombined as Chione (Securella) securis by Trumbull and Schumard (1958); it was recombined as Securella securis by Parker (1949), Faustman (1964).
Synonyms
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Synonymy list
Year | Name and author |
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1858 | Venus securis Shumard p. 122 |
1909 | Venus parapodema Dall p. 122 figs. pl. 11, fig. 11; pl. 13, fig. 1 |
1931 | Chione securis Etherington pp. 80 - 81 figs. Plate 8, figures 4, 5 |
1931 | Venus (Chione) securis Grant, IV and Gale |
1932 | Chione securis Clark |
1942 | Chione securis Weaver p. 162 |
1942 | Chione parapodema Weaver p. 164 |
1949 | Securella securis Parker p. 593 figs. Plate 94, figures 8, 12, 19; plate 95, figure 6 |
1958 | Chione (Securella) securis Trumbull and Schumard |
1964 | Securella securis Faustman p. 120 |
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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
Reference | Diagnosis | |
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U. S. Grant, IV and H. R. Gale 1931 | Shell 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. |
Measurements
No measurements are available
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Source: f = family, c = class | |||||
References: Kiessling 2004, Aberhan et al. 2004 |
Collections (10 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Chattian | USA (Alaska) | Chione securis (195964) | |
Early/Lower Miocene - Middle Miocene | Mexico (Baja California Sur) | Chione securis (43804) | |
Tortonian | Russian Federation | Securella securis (49978) | |
Early/Lower Pliocene | USA (Oregon) | Venus securis (71146 71149) | |
Early/Lower Pliocene | USA (California) | Venus securis (96902 96904) | |
Pliocene | USA (California) | Venus securis (96885) | |
Pliocene | Russian Federation | Securella securis (49976) | |
Late/Upper Pliocene - Early/Lower Pleistocene | USA (Washington) | Venus securis (71109) |