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Niveria parvavellana

Gastropoda - Triviidae

Taxonomy
Trivia sphaericulata parvavellana was named by Sacco (1894) [Lectotype, designated by Ferrero Mortara et al. (1984).]. Its type specimen is BS.68.043.12.010, a shell, and it is a 3D body fossil.

It was recombined as Trivia parvavellana by Schilder (1932); it was recombined as Trivia (Sulcotrivia) parvavellana by Schilder (1941); it was recombined as Niveria parvavellana by Fehse and Landau (2002).

Synonymy list
YearName and author
1894Trivia sphaericulata parvavellana Sacco p. 49 figs. pl. 3, fig. 36
1932Trivia parvavellana Schilder p. 104
1941Trivia (Sulcotrivia) parvavellana Schilder p. 74
2002Niveria parvavellana Fehse and Landau pp. 98 - 99 figs. 3/1 a-c, 2a, b; 6/4a-d

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
phylumMollusca
classGastropoda
subclassCaenogastropoda(Cox 1959)
RankNameAuthor
Sorbeoconcha(Ponder and Lindberg 1997)
Hypsogastropoda(Ponder and Lindberg 1997)
superorderLatrogastropodaRiedel 2000
superfamilyCypraeoidea(Rafinesque 1815)
familyTriviidaeTroschel 1863
subfamilyTriviinaeTroschel 1863
genusNiveriaJousseaume 1884
speciesparvavellana(Sacco 1894)

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.

Niveria parvavellana Sacco 1894
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Diagnosis
ReferenceDiagnosis
D. Fehse and B. Landau 2002Shell small, solid, inflated and oval. Spire covered by callus, barely visible beneath 2 vertical riblets, extending upwards from the posterior terminal. Body whorl globose, about 95% of total height. The terminals are produced, the anterior flattened, the posterior rounded. Dorsum evenly rounded, covered by 16-20 strong, somewhat irregular ribs. A narrow dorsal sulcus, of variable strength, extends longitudinally across the centre of the dorsum. The ribs become thickened at the edge of the sulcus and either bisected or narrowed as they cross the depression. Base almost straight, with the anterior terminal hardly recurved and the posterior strongly so. The aperture is narrow, strongly curved adapically and widened in the area of the fossula. Outer lip broadened, convex, widest in mid-portion, becoming narrower towards the terminals and regularly rounded, bearing 19-22 strong, equal teeth. Outer lip, with an angular margin. Siphonal and anal canals are slightly indented. Columella concave, tapering inwards, bordered internally by a weak carinal ridge. Columella bears 17-19 ribs, which run onto the carinal ridge, which is slightly protruding in the fossular region. Fossula concave and not clearly delimited from the rest of the columella. In most of the specimens a clear colour pattern is visible; it consists of a small brown spot on the anterior end of the dorsal sulcus, a patch surrounding the posterior end and mid-dorsally a larger patch on either side of the sulcus, which, in some specimens, are fused.
Measurements
No measurements are available
Composition: aragonitec
Locomotion: actively mobilef
Life habit: epifaunalf
Diet: carnivoref
Vision: limitedc
Created: 2009-09-10 08:02:03
Modified: 2009-09-10 10:02:03
Source: f = family, c = class
References: Hendy et al. 2009, Kiessling 2004

Age range: base of the Messinian to the top of the Piacenzian or 7.24600 to 2.58800 Ma

Collections (6 total)


Time interval Ma Country or state Original ID and collection number
Messinian7.246 - 5.333France Niveria parvavellana (178470)
Zanclean5.333 - 3.6Italy Niveria parvavellana (178810)
Zanclean5.333 - 3.6Spain Niveria parvavellana (80564 178254)
Piacenzian3.6 - 2.588Spain Niveria parvavellana (80561 80562)