The value of a single character: the Paleogene European land snail Ferussina Grateloup, 1827 is likely a cyclophorid (Gastropoda, Caenogastropoda)

Ferussina Grateloup, 1827 is a European Paleogene land snail genus, which is currently classified in its own family, the Ferussinidae Wenz, 1923 (1915), in the superfamily Cyclophoroidea. The shell of this genus is remarkable by its last quarter whorl turning towards the apex instead of away from it...

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Main Authors: Barna Páll-Gergely, Thomas A. Neubauer
Format: Article
Language:English
Published: Pensoft Publishers 2020-03-01
Series:ZooKeys
Online Access:https://zookeys.pensoft.net/article/50135/download/pdf/
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author Barna Páll-Gergely
Thomas A. Neubauer
author_facet Barna Páll-Gergely
Thomas A. Neubauer
author_sort Barna Páll-Gergely
collection DOAJ
description Ferussina Grateloup, 1827 is a European Paleogene land snail genus, which is currently classified in its own family, the Ferussinidae Wenz, 1923 (1915), in the superfamily Cyclophoroidea. The shell of this genus is remarkable by its last quarter whorl turning towards the apex instead of away from it, which is an unusual trait in terrestrial snails. We show, however, that this trait has evolved at least nine times in terrestrial Eupulmonata and Caenogastropoda, and it does not justify distinction at the family level in any of the reported cases. This observation suggests the systematic position of Ferussina should not be based on the apexward-turning last quarter whorl alone but instead on the general morphology of the shell. As a result, we re-evaluate the systematic position of the Ferussinidae and treat it as a subfamily of the Cyclophoridae.
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spelling doaj.art-e53224d31efe42d98e30126a4cbbeaaf2022-12-21T23:41:15ZengPensoft PublishersZooKeys1313-29702020-03-01918294010.3897/zookeys.918.5013550135The value of a single character: the Paleogene European land snail Ferussina Grateloup, 1827 is likely a cyclophorid (Gastropoda, Caenogastropoda)Barna Páll-Gergely0Thomas A. Neubauer1Plant Protection Institute, Centre for Agricultural ResearchNaturalis Biodiversity CenterFerussina Grateloup, 1827 is a European Paleogene land snail genus, which is currently classified in its own family, the Ferussinidae Wenz, 1923 (1915), in the superfamily Cyclophoroidea. The shell of this genus is remarkable by its last quarter whorl turning towards the apex instead of away from it, which is an unusual trait in terrestrial snails. We show, however, that this trait has evolved at least nine times in terrestrial Eupulmonata and Caenogastropoda, and it does not justify distinction at the family level in any of the reported cases. This observation suggests the systematic position of Ferussina should not be based on the apexward-turning last quarter whorl alone but instead on the general morphology of the shell. As a result, we re-evaluate the systematic position of the Ferussinidae and treat it as a subfamily of the Cyclophoridae.https://zookeys.pensoft.net/article/50135/download/pdf/
spellingShingle Barna Páll-Gergely
Thomas A. Neubauer
The value of a single character: the Paleogene European land snail Ferussina Grateloup, 1827 is likely a cyclophorid (Gastropoda, Caenogastropoda)
ZooKeys
title The value of a single character: the Paleogene European land snail Ferussina Grateloup, 1827 is likely a cyclophorid (Gastropoda, Caenogastropoda)
title_full The value of a single character: the Paleogene European land snail Ferussina Grateloup, 1827 is likely a cyclophorid (Gastropoda, Caenogastropoda)
title_fullStr The value of a single character: the Paleogene European land snail Ferussina Grateloup, 1827 is likely a cyclophorid (Gastropoda, Caenogastropoda)
title_full_unstemmed The value of a single character: the Paleogene European land snail Ferussina Grateloup, 1827 is likely a cyclophorid (Gastropoda, Caenogastropoda)
title_short The value of a single character: the Paleogene European land snail Ferussina Grateloup, 1827 is likely a cyclophorid (Gastropoda, Caenogastropoda)
title_sort value of a single character the paleogene european land snail ferussina grateloup 1827 is likely a cyclophorid gastropoda caenogastropoda
url https://zookeys.pensoft.net/article/50135/download/pdf/
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