Vetigastropoda Salvini-Plawén, 1980
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https://doi.org/10.4202/app.00659.2019 |
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publication LSID |
lsid:zoobank.org:pub:52C87838-856E-468B-9215-1065205FA02A |
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persistent identifier |
https://treatment.plazi.org/id/03FCAB2D-FF95-2677-FF31-379E4CC32BDB |
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Felipe (2024-06-21 03:52:01, last updated 2024-06-21 04:54:44) |
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scientific name |
Vetigastropoda Salvini-Plawén, 1980 |
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Subclass Vetigastropoda Salvini-Plawén, 1980 ?Family Turbinidae Rafinesque, 1815
“ Turbo ” sp.
Fig. 6 View Fig .
Material.— One specimen ( PZO 12740 ) from the Misurina Landslide surface sample, Italy, Carnian, Triassic .
Description.—Shell turbiniform, comprising ca. 6 whorls 5.4 mm high, ca. 4.4 mm wide (specimen slightly compressed, appearing wider); whorl embracing at mid-whorl periphery; last whorl distinctly higher than spire; whorl face moderately convex with shoulder giving spira gradate appearance; whorls ornamented with strengthened prosocline and slightly prosocyrt growth-lines; base evenly convex, seemingly anomphalous.
Remarks.—Turbiniform shape and prosocline ornament of strengthened growth lines suggest that this specimen represents a turbinid vetigastropod species. The specimen from Misurina that was figured by Zardini (1978: pl. 12: 7 and 1985: pl. 10: 2) as Solarioconulus nudus ( Münster, 1841) is probably conspecific with the present specimen. However, S. nudus is much broader with a greater apical angle according to the figures provided by Münster (1841) and Kittl (1892). Moreover, it lacks the strengthened growth lines and is smooth according to Kittl (1892). Trochus lissochilus Kittl, 1892 , is similar but lacks a shoulder and the transition to the base is rounded angular. Turbo ? vixcarinatus Münster, 1841, resembles the present specimen but lacks a shoulder and according to Kittl (1892) the growth lines are straight. We think that the present specimen represents an undescribed species but more material is necessary to characterize it sufficiently.
Kittl, E. 1892. Die Gastropoden der Schichten von St. Cassian der sudalpinen Trias. II. Theil. Annalen des Kaiserlich-Koniglichen Naturhistorischen Hofmuseums 7: 35 - 97.
Munster, G. zu 1841. Beschreibung und Abbildung der in den Kalkmergelschichten von St. Cassian gefundenen Versteinerungen. In: H. L. Wissmann and G. Graf zu Munster (eds.), Beitrage zur Geognosie und Petrefacten-Kunde des sudostlichen Tirol's vorzuglich der Schichten von St. Cassian. Beitrage zur Petrefacten-Kunde 4: 25 - 152.
Rafinesque, C. S. 1815. Analyse de la Nature ou Tableau de l'univers et des corps organis e s. 224 pp. The author, Palermo.
Salvini-Plawen, L. von 1980. A reconsideration of systematics in the Mollusca (phylogeny and higher classification). Malacologia 19: 249 - 278.
Zardini, R. 1978. Fossili Cassiani (Trias Medio-Superiore). Atlante dei Gasteropodi Della Formazione di S. Cassiano Raccolti Nella Regione Dolomitica Attorno a Cortina D'Ampezzo. 58 pp. Edizione Ghedina, Cortina d'Ampezzo.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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