Abstract
This paper describes the first fossil porcupine remains from Iran. Four upper cheek teeth and two fragmentary lower incisors present sufficient characters for identification as Hystrix aryanensis, a species previously known from the late Miocene locality of Molayan (Afghanistan) estimated at ca. 7–8 Ma. The dental features of porcupines are discussed to show their systematic value and highlight evolutionary trends in late Miocene and Pliocene porcupines. This study also discusses the dispersal history of fossil porcupines in relation to paleobiogeographic provinces and environmental changes during late Miocene to late Pliocene time.
Kurzfassung
Diese Arbeit beschreibt die ersten Stachelschweinfossilfunde aus dem Iran. Vier Oberkieferzähne und zwei fragmentäre untere Frontzähne zeigen Merkmale, die zur Bestimmung von Hystrix aryanensis ausreichen, eine Art, die bisher aus dem jüngeren Miozän aus Molayan (Afghanistan) bekannt ist und auf ca. 7 bis 8 Ma geschätzt wird. Die Zahnmerkmale der Stachelschweine werden diskutiert, um deren systematische Aussagekraft hervorzuheben, und um die Evolutionstrends der Stachelschweine im jüngeren Miozän und Pliozän zu beleuchten. Diese Arbeit diskutiert auch die Entwicklung der Verteilung von fossilen Stachelschweinen in Verbindung mit den paläobiogeographischen Provinzen und Umweltveränderungen während des jüngeren Miozäns und Pliozäns.
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Acknowledgments
We are grateful to authorities of Tabriz University for financial support of excavations at Ivand and giving us access to the study of porcupine remains. The trip of S. Sen to Tabriz was granted by the Centre de Recherches sur Paléobiodiversité et Paléoenvironnements (CR2P of CNRS). Lawrence J. Flynn (Peabody Museum, Cambridge, MA) kindly revised the English and suggested many improvements for systematics and age of taxa. Figure 1 was redrawn by Agathe Cambreleng (MNHN, Paris). The abstract was translated into German by Thomas Servais (CNRS, Lille). We thank all of them.
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Sen, S., Purabrishemi, Z. First porcupine fossils (Mammalia, Rodentia) from the late Miocene of NW Iran, with notes on late Miocene–Pliocene dispersal of porcupines. Paläontol Z 84, 239–248 (2010). https://doi.org/10.1007/s12542-009-0040-6
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DOI: https://doi.org/10.1007/s12542-009-0040-6