Description of a new Late Cretaceous species ofBulimulusLeach, 1814 (Orthalicoidea: Bulimulidae) using geometric morphometric analysis
- Resource Type
- Authors
- Sergio Martínez; Abraham S H Breure; Fernanda Cabrera; Walter Norbis
- Source
- Journal of Molluscan Studies. 87
- Subject
- 0106 biological sciences
010506 paleontology
biology
Orthalicoidea
Zoology
Aquatic Science
biology.organism_classification
010603 evolutionary biology
01 natural sciences
Bulimulus
Cretaceous
Bulimulidae
Morphometric analysis
Animal Science and Zoology
0105 earth and related environmental sciences
- Language
- ISSN
- 1464-3766
0260-1230
In the Late Cretaceous fossil record of Uruguay, three morphotypes of Bulimulus (Bulimulidae) have been recorded: Bulimulus klappenbachi and two undescribed ones. A geometric morphometric analysis was conducted to show whether the three morphotypes represent one or more species. With this aim, the three fossils were compared with three extant species of the same genus: Bulimulus bonariensis, B. guadalupensis and B. rushi. Variability within and among these three well-known extant species was tested to evaluate differences in the fossil morphotypes. Twenty-eight landmarks were selected (9 permanent landmarks and 19 semi-landmarks) and principal component analysis and canonical variate analysis were performed. Results indicate that only one of the unnamed morphotypes can be described as a new species and that the other is a variant of B. klappenbachi. The latter fossil species is described as Bulimulus frenguellii n. sp.