New findings of unique preserved fossil mammals in the permafrost of Yakutia
New findings of unique preserved fossil mammals in the permafrost of Yakutia
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雅库特永久冻土层中独特保存的哺乳动物化石的新发现
DOI:
10.1134/s0012496613050116
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发表时间:
2013
影响因子:
--
通讯作者:
A. Tikhonov
中科院分区:
文献类型:
--
作者:
G. Boeskorov;A. Protopopov;E. N. Mashchenko;O. Potapova;T. Kuznetsova;V. Plotnikov;S. E. Grigoryev;I. N. Belolyubskii;M. Tomshin;M. Shchelchkova;S. D. Kolesov;I. V. D. Plicht;A. Tikhonov
291 Skeletal remains and frozen corpses of fossil mamm mals, having special scientific value, are preserved in the permafrost. A considerable amount of such remains has been found in the Arctic zone of Yakutia, in regions of spreading ice sediments of the Yedoma suite. To date, more than 15 frozen corpses, including mammoths, wooly rhinoceroses, horses, bison, and a wolverine, have been found [1–7]. The study of mumm mies of the Pleistocene mammals preserved in the perr mafrost gives much new information unavailable from the study of osseous remains of common paleontologg ical objects. Over the past 20 years, microbiological, molecular genetic, and isotope studies of mummies have largely expanded our knowledge of the paleoo ecology and paleogeography of the Pleistocene and Holocene mammals [2, 3, 5, 8]. Three new and unique findings of frozen corpses of fossil mammals were discovered in 2010–2011 in Yakutia (Fig. 1). A part of a woolly mammoth (Mamm muthus primigenius Blumenbach, 1799) corpse was found in summer of 2009 on the southern bank of the Dmitrii Laptev Strait (the Oiyagosskii steep bank) 30 km west of the Kondrat'yev River mouth (72°42´16″ N, 142°50´15″ E) (Fig. 2). A fragment of this mammoth corpse is an object of the municipal property of the Yukaghir community. Its collection numbers are OYu nos. 1–1/13: a corpse fragment, OYu no. 1, a skull, OYu no. 1/1, the lower jaw, OYu no. 1/2, the first cranial vertebra, OYu no. 1/3, the right and left scapulae, OYu no. 1/4, the pelvis in anatomical conn nection to sacrum, the fourth lumbar vertebra, and the first to third tail vertebrae, OYu no. 1/5. Eight ribs from the right side of the skeleton with broken heads, approximately the 10th to 17th ones, are OYu nos. 1/6–1/13. A part of the horse (Equus sp.) corpse was found in July 2010 in the same area of the Oiyagosskii steep bank (Fig. 3). The collection number is OYu no. 2. A corpse of the primeval bison (Bison priscus Bojaa nus, 1827) was found in August 2010 on the northwestt ern bank of Lake Chukchalakh, approximately 100 km southwest of the place of finding of the mammoth and horse (Fig. 4). The collection number is OYu no. 3. All the three findings were found by members of the Yukk aghir tribal community (the Yukaghir village, Yakutia) and given their proper names after it. At present, these corpse remains …