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Bleytonella
Taxonomy
Bleytonella was named by Gründel and Kollmann (2012). Its type is Bleytonella circumlata.
It was assigned to Pickworthiidae by Gründel and Kollmann (2012).
It was assigned to Pickworthiidae by Gründel and Kollmann (2012).
Species
Synonymy list
Year | Name and author |
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2012 | Bleytonella Gründel and Kollmann p. 115 |
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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.
G. †Bleytonella Gründel and Kollmann 2012
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†Bleytonella brevis Pictet and Campiche 1826
†Bleytonella circumlata Gründel and Kollmann 2012
†Bleytonella michaillensis Pictet and Campiche 1862
Diagnosis
Reference | Diagnosis | |
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J. Gründel and H. A. Kollmann 2012 | Shell high turriculate with detached final whorl. The protoconch is not known. The sculpture consists of a few strong axial ribs and weaker spiral ribs which are evenly distributed over the whorls. The aperture is circular, the peristome is flange-like expanded in adult specimens. |
Measurements
No measurements are available
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Source: superf = superfamily, c = class | |||||
References: Kiessling 2004, Hendy et al. 2009 |
Age range: base of the Late/Upper Kimmeridgian to the top of the Early/Lower Aptian or 155.70000 to 122.46000 Ma
Collections (5 total)
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Late/Upper Kimmeridgian | Germany | B. sp. (211294) | |
Late/Upper Barremian | France (Drôme) | B. circumlata (177726) | |
Early/Lower Aptian | Switzerland | Scalaria brevis (2175) | |
Aptian | Switzerland | Scalaria brevis (2172) | |
Aptian | France | Turbo michaillensis (2178) |