Research progress on human fossils from the Xujiayao site in late Middle Pleistocene
Received date: 2023-05-05
Online published: 2024-02-06
The Xujiayao hominin remains are key to the study of East Asian human evolution but also the most controversial. The Xujiayao (Houjiayao) site is located west of Liyigou, a tributary on the left bank of the Sanggan River in the northern Nihewan Basin of northern China. The site was first discovered in 1973. Between 1976 and 1979, 21 human fossils were found at the site, including one partial left maxilla, three isolated teeth, two occipital bones, one partial mandible, one left temporal bone and 13 parietal fragments, all representing 16 individuals. Based on the associated fauna, and OSL dating on the middle-lower culture layers, the Xujiayao hominins lived in the late Middle Pleistocene (about 160-200 kaBP). Evaluations of Xujiayao taxonomy have ranged from being representatives of Asian H. erectus, pre-modern Homo sapiens, archaic Homo sapiens, Neandertals, intermediate between H. erectus and modern H. sapiens, unidentified hominin species, or related to Xuchang 1, Penghu 1, Xiahe 1 or Denisovans. Over the past 10 years, there has been renewed attention to these fossils. New results suggest that the Xujiayao hominins have a suite of unusual morphological traits that do not conform to existing patterns of morphology from either the time period or the region. These traits include large and morphologically complex teeth, very large cranial capacity (about 1700 mL), Neanderthal-like traits of bi-level nasal floor and temporal labyrinthine patterns that are common, but not exclusive to that lineage, live slow and die old modern growth and development patterns in the immature maxilla, and several primitive early East Asian traits despite the fossils’ recent age. In addition, the Xujiayao hominins show various pathologies, including a very rare congenital defect of an enlarged parietal foramen associated with cerebral venous and cranial vault anomalies, multiple traumatic lesions of endocranium, and minor temporal auditory porous new bone in external auditory exostoses. In conclusion, the Xujiayao hominins are characterized by a mosaic of archaic morphological features that distinguish them clearly from H. erectus, Neandertals, and modern humans. Given that the Xujiayao and Xuchang crania group closely together in multiple analyses and are quite different from all other comparative Pleistocene hominin crania, we conclude that they represent a new hominin population for the region, Juluren meaning “large head people”. It is quite possible that this population represents gene flow between Asian H. erectus and possibly H. antecessor or early Neandertals, which supports the idea of continuity with hybridization as a major force shaping Chinese populations during the late Middle and early Late Pleistocene.
Key words: Xujiayao; human fossils; Late Middle Pleistocene; East Asia; Juluren
Xiujie WU . Research progress on human fossils from the Xujiayao site in late Middle Pleistocene[J]. Acta Anthropologica Sinica, 2024 , 43(01) : 5 -18 . DOI: 10.16359/j.1000-3193/AAS.2023.0044
[1] | 贾兰坡, 卫奇. 阳高许家窑旧石器时代文化遗址[J]. 考古学报, 1976, 2: 97-114 |
[2] | 贾兰坡, 卫奇, 李超荣. 许家窑旧石器时代文化遗址1976年发掘报告[J]. 古脊椎动物与古人类, 1979, 17(4): 277-293 |
[3] | 吴茂霖. 许家窑遗址1977年出土的人类化石[J]. 古脊椎动物与古人类, 1980, 18(3): 229-238 |
[4] | 吴茂霖. 许家窑人颞骨研究[J]. 人类学学报, 1986, 5(3): 220-226 |
[5] | Wu XJ, Bae JC, Martin F, et al. Evolution of cranial capacity revisited: A view from the late Middle Pleistocene cranium from Xujiayao, China[J]. Journal of Human Evolution, 2022, 163: 103119 |
[6] | 马宁, 裴树文, 高星. 许家窑遗址74093地点1977年出土石制品研究[J]. 人类学学报, 2011, 23: 275-288 |
[7] | Li JS, Zhang SQ, Bunn HT, et al. A preliminary application of dental cementum incremental analysis to determine the season-of death of equids from the Xujiayao site, China[J]. Science China Earth Sciences, 2017, 60: 1183-1188 |
[8] | Norton CJ, Gao X. Hominin-carnivore interactions during the Chinese Early Paleolithic: Taphonomic perspectives from Xujiayao[J]. Journal of Human Evolution, 2008, 55: 164-178 |
[9] | 王法岗, 李锋. “许家窑人”埋藏地层与时代探讨[J]. 人类学学报, 2020, 39(2): 161-172 |
[10] | Xing S, Martinón-Torres M, Bermúdez de Castro JM, et al., 2015. Hominin teeth from the early Late Pleistocene site of Xujiayao, Northern China[J]. American Journal of Physical Anthropology, 2015, 156: 224-40 |
[11] | 吴汝康, 吴新智, 张振标. 人体测量方法[M]. 北京: 科学出版社, 1984, 11-15 |
[12] | Xing S, Guatelli-Steinberg D, O'Hara M, et al. Perikymata distribution in Homo with special reference to the Xujiayao juvenile[J]. American Journal of PhysicalAnthropology, 2015, 157: 684-693 |
[13] | Xing S, Tafforeau P, O'Hara M, et al. First systematic assessment of dental growth and development in an archaic hominin (genus, Homo) from East Asia[J]. Science Advances, 2019, 5(1): 0-eaau0930 |
[14] | Wu XJ, Maddux SD, Pan L, et al. Nasal floor variation among eastern Eurasian Pleistocene Homo[J]. Anthropology Science. 2012, 120(3): 217-226 |
[15] | Wu XJ, Trinkaus E. The Xujiayao 14 Mandibular Ramus and Pleistocene Homo Mandibular Variation[J]. Comptes Rendus Palevol, 2014, 13: 333-341 |
[16] | Trinkaus E, Wu XJ. External auditory exostoses in the Xuchang and Xujiayao human remains: Patterns and implications among eastern Eurasian Middle and Late Pleistocene crania[J]. PLoS One, 2017, 12(12): e0189390 |
[17] | Wu XJ, Crevecoeur I, Liu W, et al. The temporal labyrinths of eastern Eurasian Pleistocene humans[J]. Proceedings of the National Academy of Sciences the United States of America, 2014, 111(29): 10509-10513 |
[18] | Wu XJ, Trinkaus E. Neurocranial Trauma in the Late Archaic Human Remains from Xujiayao, Northern China[J]. International Journal of Osteoarchaeology, 2015, 25: 245: 252 |
[19] | Wu XJ, Xing S, Trinkaus E. An Enlarged Parietal Foramen in the Late Archaic XJY 11 Neurocranium from Northern China[J]. PLoS One, 2013, 8(3):1-10(e59587) |
[20] | Xing S, Guatelli-Steinberg D, O'Hara M, et al. Micro-CT imaging and analysis of enamel defects on the early Late Pleistocene Xujiayao juvenile[J]. International of Osteoarchaeology, 2014, 26(6): 935-46(2015) |
[21] | 邢松. 许家窑人幼年个体的釉质发育缺陷[J]. 人类学学报, 2019, 38(4): 499-512 |
[22] | Liu W, Athreya S, Xing S, et al. Hominin evolution and diversity: a comparison of earlier-Middle and later-Middle Pleistocene hominin fossil variation in China[J]. Philosophical Transactions B, 2022, 377: 20210040 |
[23] | 刘武, 吴秀杰. 中更新世晚期中国古人类化石的形态多样性及其演化意义[J]. 人类学学报, 2022, 41(4): 563-575 |
[24] | Ni XJ, Ji Q, Wu WS, et al. Massive cranium from Harbin establishes a new Middle Pleistocene human lineage in China[J]. The Innovation, 2021, 2: 100130 |
[25] | 吴新智. 陕西大荔县发现的早期智人古老类型的一个完好头骨[J]. 中国科学, 1981, 2: 200-206 |
[26] | 吴汝康. 辽宁营口金牛山人化石头骨的复原及其主要性状[J]. 人类学学报, 1988, 7: 97-101 |
[27] | 吴汝康, 彭如策. 广东韶关马坝发现的早期古人类型人类化石[J]. 古脊椎动物与古人类, 1959, 1(4): 159-163 |
[28] | Wu XJ, Pei SW, Cai YJ, et al. Archaic human remains from Hualongdong, China, and Middle Pleistocene human continuity and variation[J]. Proceedings of the National Academy of Sciences the United States of America, 2019, 116, 9820-9824 |
[29] | Li ZY, Wu XJ, Zhou LP, et al. Late Pleistocene archaic human crania from Xuchang, China[J]. Science, 2017, 355: 969-972 |
[30] | Zubova AV, Chikisheva TA, Shunkov MV. The morphology of permanent molars from the Paleolithic layers of Denisova Cave[J]. Archaeology, Ethnology & Anthropology of Eurasia, 2017, 45: 121-134 |
[31] | Chang CH, Kaifu Y, Takai K, et al. The first archaic Homo from Taiwan[J]. Nature Communication, 2015, 6: 6037.mo |
[32] | Chen FH, Welker F, Shen CC, et al. A late Middle Pleistocene Denisovan mandible from the Tibetan Plateau[J]. Nature, 2019, 569: 409-412 |
[33] | Trinkaus E. An abundance of developmental anomalies and abnormalities in Pleistocene people[J]. Proceedings of the National Academy of Sciences the United States of America, 2018, 115: 11941-11946 |
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