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Zonaria (Zonaria) frassinetti
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).
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
| Year | Name and author |
|---|---|
| 2003 | Zonaria (Zonaria) frassinetti Groves and Nielsen pp. 352 - 353 figs. 2, 3 |
| 2005 | Zonaria frassinetti Nielsen |
| 2010 | Pseudozonaria frassinettii Landau and Marques da Silva p. 36 |
| 2011 | Pseudozonaria frassinetti Landau and Groves p. 28 |
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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.
†Zonaria (Zonaria) frassinetti Groves and Nielsen 2003
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| L. T. Groves and S. N. Nielsen 2003 | Shell 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 2011 | Zonaria 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). |
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Kiessling 2004, Hendy et al. 2009 | |||||
Collections
No collection or age range data are available