Dorcatherium Minus (Tragulidae-Artiodactyla-Mammalia) From the Nagri Type Area of the Nagri Formation, Middle Siwaliks, Northern Pakistan: New Collection

Yıl 2011, Cilt: 32 Sayı: 1, 141 - 168, 01.02.2011

Mehboob Iqbal Muhammad Akbar Khan Muhammad Atıq Tasneem Ikram Muhammad Akhtar

Öz

New tragulid material from the outcrops nearby Nagri type locality, Jhelum, Punjab, Pakistan, is described and discussed. The late Miocene deposits of the Nagri type area yielded fossil remains of Dorcatherium minus, associated with D. majus, Dorcabune nagrii, Brachypotherium, Hipparion, Listriodon, bovids and giraffids. The collected material includes upper and lower dentition, and ascribed to the Siwalik tragulid species D. minus. The recovered material greatly improves the sample size of the species D. minus, known from the Siwaliks. Information from D. minus is consistent with previous interpretations, that the Nagri deposits were formed under swampy and littoral palaeoenvironmental conditions.

Anahtar Kelimeler

Tragulidae, Dorcatherium, Nagri Formation, Siwaliks, Late Miocene

Nagri Formasyonu Tip Lokalitesinden (Orta Siwalik, Kuzey Pakistan) Dorcatherium Minus (Tragulidae-Artiodactyla-Mammalia): Yeni Kolleksiyon

Öz

Nagri formasyonu tip lokalitesindeki yüzleklerde (Jhelum, Punjab, Pakistan) saptanan yeni tragulid bulguları tanımlanmış ve tartışılmıştır. Nagri tip lokasyonunun geç Miyosen çökellerinde Dorcatherium minus fosil kalıntıları D.majus, Dorcabune nagrii, Brachypotherium, Hipparion, Listriodon, bovid ve zürafa kalıntıları ile birlikte bulunmuştur. Üst ve alt dişlenmelerden oluşan bulgular Sivalik tragulid’e ait D.minus türüne işaret etmektedir. Keşfedilen kalıntılar Siwaliksteki bilinen D.minus örneklerinin zenginleşmesini sağlamıştır. D. minus bulgularından elde edilen bilgiler önceki yorumlarla uyumlu olup Nagri çökelleri bataklık ve litoral ortam koşullarında oluşmuştur

Anahtar Kelimeler

Tragulidae, Dorcatherium, Nagri Formasyonu

Kaynakça

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