کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4750011 1360631 2008 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A new species of fossil Mus (Rodentia, Muridae) from the Indian Himalaya: Evolutionary and phylogenetic implications
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فسیل شناسی
پیش نمایش صفحه اول مقاله
A new species of fossil Mus (Rodentia, Muridae) from the Indian Himalaya: Evolutionary and phylogenetic implications
چکیده انگلیسی

A new species of fossil Mus (Rodentia, Mammalia) is reported from the Late Pleistocene fluvio-lacustrine deposits of the Kumaun sector of Indian Himalaya. The fossiliferous horizon, medium-coarse grained sand lenses embedded in the massive carbonaceous mud, is exposed at locality Dulam and is Late Pleistocene (ca. 30 ka) in age. A new species, Mus dulamensis n. sp., is proposed. Characterized by strongly distorted and moderately elongated M1 (about 170% of M2 length) with prominent conules in front of the t2, higher magnitude of stephanodonty (between the t1 and t4 and between the t3 and t6), moderately reduced M3 (about 56% of M2 length) and stronger connection between the cusps, this species is distinct from all other species of the genus and is included in the “booduga group”. I suggest that M. dulamensis n. sp. is comparatively more derived than M. auctor, M. flynni, M. jacobsi and Mus sp. and it may have given rise to M. booduga or M. dunni. It is further suggested that presently living M. booduga and M. dunni are more specialized than Mus dulamensis n. sp.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Palaeoworld - Volume 17, Issue 1, March 2008, Pages 47–56
نویسندگان
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