The Bulgarian Chalicotheriidae (Mammalia): an update

All available chalicotheriid material from the late Miocene Bulgarian localities is revised. It belongs to three taxa: Ancylotherium pentelicum, Chalicotherium cf. goldfussi and Kalimantsia bulgarica, the former being the most common. The new material of A. pentelicum increases its known variability...

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Bibliographic Details
Published inRevue de paléobiologie Vol. 25; no. 2; pp. 429 - 436
Main Authors Geraads, Denis, Spassov, Nikolaï, Kovachev, Dimitar
Format Journal Article
LanguageEnglish
Published Museum d'Histoire Naturelle de la Ville de Geneve 2006
Subjects
Earth Sciences
Environmental studies
Humanities and Social Sciences
Paleontology
Sciences of the Universe
Bulgarie
Mammalia
Chalicotheriidae
Bulgaria
Miocène supérieur
late Miocene
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Summary:All available chalicotheriid material from the late Miocene Bulgarian localities is revised. It belongs to three taxa: Ancylotherium pentelicum, Chalicotherium cf. goldfussi and Kalimantsia bulgarica, the former being the most common. The new material of A. pentelicum increases its known variability, but there is still no evidence of evolutionary changes in this species, as the smaller size of the fossils from Hadjidimovo might be explained by sexual dimorphism. On the basis of its forearm and manus morphology, we challenge the view that Ancylotherium was a leaf-eater. Tout le matériel de Chalicotheriidae du Miocène supérieur de Bulgarie est révisé. Il appartient à trois taxons: Ancylotherium pentelicum, Chalicotherium cf. goldfussi et Kalimantsia bulgarica, le premier étant le plus commun. Les nouveaux matériaux de A. pentelicum accroissent sa variabilité connue, mais rien ne démontre l'existence de changements évolutifs dans cette espèce, car la faible taille des fossiles de Hadjidimovo pourrait s'expliquer par le dimorphisme sexuel. En nous basant sur la morphologie de son avant-bras et de sa main, nous ne pensons pas que Ancylotherium ait été un brouteur de feuilles.
ISSN:0253-6730
1661-5468