滇西鹤庆边富洞旧石器遗址的中更新世晚期微岩器

IF 1.9 3区 地球科学 Q3 GEOGRAPHY, PHYSICAL
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引用次数: 0

摘要

卞福洞(蝙蝠洞的拼音)是中国西南部云南鹤庆最近发现的一处旧石器时代遗址。2019 年出土了多具人 类化石、石器和 69,000 多件哺乳动物化石。人类化石和石器出土于该剖面的上部(1-12层),年代范围为公元前180-70万年。一些大型哺乳动物化石和微小哺乳动物遗骸是从该剖面的下部(第22-30层)采集的,其年代为公元前180-70万年。本文介绍了从第 25-30 层采集的微哺乳动物化石,并分析了动物群组成和古生境。638件微小哺乳动物标本代表了12个物种,包括11个现生物种,即Euroscaptor longirostris、Blarinella wardi、Anourosorex squamipes、Crocidura vorax、Eothenomys (Anteliomys) chinensis、E.(A.)proditor、Apodemus chevrieri、Ap. draco、Ap. latronum、Micromys minutus 和 Niviventer confucianus,以及一个灭绝物种 Anourosorex qianensis。无论是在鉴定标本的数量上,还是在最小个体数量上,两个箭尾狒狒种都占优势。边富洞微小哺乳动物群的组成可与云南呈贡三家村、毕节马武口洞和贵州奉节兴隆洞的动物群进行比较。利用随机森林模型和现代气象数据,我们计算了边富洞所有 11 个生物物种的年平均降水量(MAP)和年平均气温(MAT)。推测的年平均降水量为 1008.04 毫米,与鹤庆地区的现代数据接近,而年平均气温略低,为 12.84 °C。中更新世晚期,鹤庆地区的气候略为凉爽,这也是以Eothenomys为主的原因。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Late Middle Pleistocene micromammals of the Bianfudong paleolithic site, Heqing, western Yunnan

Bianfudong (pinyin for Bat Cave) is a paleolithic site that was recently discovered in Heqing, Yunnan in southwestern China. Several hominin fossils, stone artifacts and more than 69,000 mammal fossils were unearthed in 2019. The hominin fossils and stone artifacts were excavated from the upper part (layers 1–12) of the section with an age range of 180–70 ka BP. Some large mammal fossils and micromammalian remains were collected from the lower part of the section (layers 22–30), which has an age >180 ka BP. This paper describes the micromammalian fossils collected from layers 25–30 and analyzes the fauna composition and paleohabitats. A total of 638 micromammal specimens represent 12 species, including 11 extant species i.e. Euroscaptor longirostris, Blarinella wardi, Anourosorex squamipes, Crocidura vorax, Eothenomys (Anteliomys) chinensis, E. (A.) proditor, Apodemus chevrieri, Ap. draco, Ap. latronum, Micromys minutus, and Niviventer confucianus, and one extinct species Anourosorex qianensis. The two arvicolid Eothenomys species dominate, both in the number of identified specimens and the minimum number of individuals. The composition of the Bianfudong micromammalian fauna can be compared with the faunas of Sanjiacun in Chenggong of Yunnan Province, Mawokoudong in Bijie and Xinglongdong in Fengjie, Guizhou Province. Using the random forest model with modern meteorological data, we calculated the mean annual precipitation (MAP) and the mean annual temperature (MAT) for all 11 living species in the Bianfudong. The MAP was inferred as 1008.04 mm, close to modern data in the Heqing area, while the MAT was slightly lower at 12.84 °C. The dominance of Eothenomys also supports a slightly cooler climate during the late Middle Pleistocene in the Heqing area.

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来源期刊
Quaternary International
Quaternary International 地学-地球科学综合
CiteScore
5.60
自引率
4.50%
发文量
336
审稿时长
3 months
期刊介绍: Quaternary International is the official journal of the International Union for Quaternary Research. The objectives are to publish a high quality scientific journal under the auspices of the premier Quaternary association that reflects the interdisciplinary nature of INQUA and records recent advances in Quaternary science that appeal to a wide audience. This series will encompass all the full spectrum of the physical and natural sciences that are commonly employed in solving Quaternary problems. The policy is to publish peer refereed collected research papers from symposia, workshops and meetings sponsored by INQUA. In addition, other organizations may request publication of their collected works pertaining to the Quaternary.
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