Heterochronic evolution in a Late Pliocene-Early Pleistocene lineage of western European voles (Arvicolinae, Rodentia, Mammalia)
Agustí, Jordi 1954- (Institut Català de Paleontologia Miquel Crusafont)
Lozano-Fernández, Iván (Institut Català de Paleoecologia Humana i Evolucio Social)
Piñero, Pedro (Institut Català de Paleontologia Miquel Crusafont)

Data:	2025
Resum:	In this paper, the evolution of the lineage of western European populations of the genus Kislangia (Arvicolinae) is analysed, including the species Kislangia cappettai from Balaruc 2, Kislangia ischus from Zújar 11, and Kislangia gusii from Galera 2 and Almenara-Casablanca 1. The range of this lineage covers the Late Pliocene and the Early Pleistocene. Our analysis has been focused on the m1. Measurements of size, hypsodonty, perimeter, and area of the teeth have been recorded. An increase in size is observed from K. cappettai to K. gusii, while hypsodonty also increases in a punctuated manner. The functional fitness of the m1 is calculated on the basis of the structural density. It is observed that at the individual level, as wear advances, there is an increase in the structural density of the teeth. Consequently, the adult tooth is functionally more efficient than at younger stages of wear. When considering the structural density across the evolution of the lineage, higher structural density values are found for the same ontogenetic stages. This indicates that older ontogenetic stages of the more archaic populations appear earlier in the descendant species. It is concluded that this evolutionary process corresponds to the heterochronic change known as acceleration.
Ajuts:	Agencia Estatal de Investigación PID2021-123092NB-C21 Generalitat de Catalunya 2021/SGR-01238 Agencia Estatal de Investigación RYC2023-044218-I Ministerio de Ciencia e Innovación CEX2019-000945-M
Nota:	Altres ajuts: CERCA Programme/Generalitat de Catalunya
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Llengua:	Anglès
Document:	Article ; recerca ; Versió acceptada per publicar
Matèria:	Iberian Peninsula ; Kislangia ; Quaternary ; Southern France ; ontogeny
Publicat a:	Historical biology, July 2025, ISSN 1029-2381

DOI: 10.1080/08912963.2025.2526016

Disponible a partir de: 2026-07-31 Postprint 29 p, 8.8 MB

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