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Zonaria (Zonaria) frassinetti

Gastropoda - Cypraeidae

Taxonomy
Zonaria (Zonaria) frassinetti was named by Groves and Nielsen (2003) [Cypraea sp. Covacevich & Frassinetti, 1980:285.]. Its type specimen is Holotype SGOPI.4972, a shell, and it is a 3D body fossil. Its type locality is SGOPI loc. 031282, 1 km north of Matanzas, Cardenal Caro Province, which is in a Tortonian foreshore sandstone in the Navidad Formation of Chile.

It was recombined as Zonaria frassinetti by Nielsen (2005); it was recombined as Pseudozonaria frassinettii by Landau and Marques da Silva (2010); it was recombined as Pseudozonaria frassinetti by Landau and Groves (2011).

Synonymy list
YearName and author
2003Zonaria (Zonaria) frassinetti Groves and Nielsen pp. 352 - 353 figs. 2, 3
2005Zonaria frassinetti Nielsen
2010Pseudozonaria frassinettii Landau and Marques da Silva p. 36
2011Pseudozonaria frassinetti Landau and Groves p. 28

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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)
familyCypraeidaeRafinesque 1815
subfamilyZonariinaeSchilder 1932
genusZonariaJousseaume 1884
subgenusZonariaJousseaume 1884
speciesfrassinetti

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.

Zonaria (Zonaria) frassinetti Groves and Nielsen 2003
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Diagnosis
ReferenceDiagnosis
L. T. Groves and S. N. Nielsen 2003Shell pear-shaped, of medium size; spire covered; dorsum moderately arched; maximum height slightly posterior of midpoint; aperture relatively straight, curving posteriorly toward columella and much wider anteriorly than posteriorly; denticulation slightly coarse with smooth interstices; labial lip with 12 to 15 teeth and columellar lip with two to four teeth, fossula smooth and narrow; basal marginal callus slight to moderate; terminal canals deep.
B. M. Landau and L. T. Groves 2011Zonaria frassinetti Groves & Nielsen, 2003 from the early late Miocene, Tortonian of Chile is here reassigned to the Pseudozonaria annettae-group characterised by its very wide aperture and widely spaced and sharp denticles. In Pseudozonaria frassinetti these features are exaggerated, so that it has the widest aperture of any of the group and the least number of teeth, especially on the columellar side where they are obsolete on the posterior portion of the columella (shell formula for Z. frassinetti; 28.1 (62.2 – 44.5) 13: 4).