人类学学报 ›› 2021, Vol. 40 ›› Issue (02): 208-225.doi: 10.16359/j.cnki.cn11-1963/q.2019.0078cstr: 32091.14.j.cnki.cn11-1963/q.2019.0078
收稿日期:
2019-05-27
修回日期:
2019-08-07
出版日期:
2021-04-15
发布日期:
2021-04-13
作者简介:
雷帅(1993-),男,博士研究生,陕西咸阳人,主要从事生物考古学研究。Email: 基金资助:
LEI Shuai1,2(), CHEN Liang1, ZHAI Linlin1
Received:
2019-05-27
Revised:
2019-08-07
Online:
2021-04-15
Published:
2021-04-13
摘要:
本文通过对西安鱼化寨史前婴幼儿乳齿特征的观察研究,发现人类乳齿与恒齿在种族识别方面具有相同的价值,且乳齿齿冠部分形态特征相较于恒齿表现的更加鲜明。统计分析结果显示,鱼化寨婴幼儿乳齿形态与东北亚人群具有的“中国型牙”接近,同时兼有少量东南亚人群具有的“巽他型牙”特征,这与同时期关中地区其他古代人群颅骨上反映的种族特征基本一致。笔者对这种现象产生的原因进行了分析。此外,本文还针对鱼化寨婴幼儿乳齿的测量数据进行了分析和探讨。
中图分类号:
雷帅, 陈靓, 翟霖林. 西安鱼化寨史前婴幼儿乳齿的特征[J]. 人类学学报, 2021, 40(02): 208-225.
LEI Shuai, CHEN Liang, ZHAI Linlin. A study on the characteristics of prehistoric deciduous teeth of infants in Yuhuazhai village, Xi’an[J]. Acta Anthropologica Sinica, 2021, 40(02): 208-225.
观察齿/Teeth | ui1 | ui2 | uc | um1 | um2 | li1 | li2 | lc | lm1 | lm2 |
---|---|---|---|---|---|---|---|---|---|---|
标本数/n | 14 | 13 | 12 | 22 | 26 | 4 | 10 | 15 | 24 | 28 |
表1 本文研究的婴幼儿乳齿
Tab.1 The deciduous teeth used in the present study
观察齿/Teeth | ui1 | ui2 | uc | um1 | um2 | li1 | li2 | lc | lm1 | lm2 |
---|---|---|---|---|---|---|---|---|---|---|
标本数/n | 14 | 13 | 12 | 22 | 26 | 4 | 10 | 15 | 24 | 28 |
观察齿/Teeth | 分级范围 /Grades | 性状出现 /Breakpoint | 样本总 数/n0 | 0级 | 1级 | 2级 | 3级 | |||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
n | 出现率/Frequency | n | 出现率/Frequency | n | 出现率/Frequency | n | 出现率/Frequency | |||||||
上颌中门齿/ui1 | 0-3 | 1-3 | 14 | 0 | 0.00 | 4 | 28.57% | 7 | 50.00% | 3 | 21.43% | |||
上颌侧门齿/ui2 | 0-3 | 1-3 | 13 | 0 | 0.00 | 2 | 15.39% | 9 | 69.23% | 2 | 15.38% | |||
上颌犬齿/uc | 0-2 | 0-2 | 12 | 2 | 16.67% | 3 | 25.00% | 7 | 58.33% | |||||
下颌犬齿/lc | 0-3 | 1-3 | 15 | 0 | 0.00 | 4 | 26.67% | 10 | 66.67% | 1 | 6.66% |
表2 不同乳齿中铲形结构的出现情况
Tab.2 The occurrence of shovel in different deciduous teeth of the present study
观察齿/Teeth | 分级范围 /Grades | 性状出现 /Breakpoint | 样本总 数/n0 | 0级 | 1级 | 2级 | 3级 | |||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
n | 出现率/Frequency | n | 出现率/Frequency | n | 出现率/Frequency | n | 出现率/Frequency | |||||||
上颌中门齿/ui1 | 0-3 | 1-3 | 14 | 0 | 0.00 | 4 | 28.57% | 7 | 50.00% | 3 | 21.43% | |||
上颌侧门齿/ui2 | 0-3 | 1-3 | 13 | 0 | 0.00 | 2 | 15.39% | 9 | 69.23% | 2 | 15.38% | |||
上颌犬齿/uc | 0-2 | 0-2 | 12 | 2 | 16.67% | 3 | 25.00% | 7 | 58.33% | |||||
下颌犬齿/lc | 0-3 | 1-3 | 15 | 0 | 0.00 | 4 | 26.67% | 10 | 66.67% | 1 | 6.66% |
组别/Groups | ui1 | ui2 | |||||
---|---|---|---|---|---|---|---|
n0 | n | 性状出现率 /Frequency | n0 | n | 性状出现率 /Frequency | ||
日本组/J | 124 | 95 | 76.60% | 163 | 152 | 93.30% | |
Pima印第安组/PI | 78 | 48 | 61.60% | 98 | 63 | 64.30% | |
因纽特组/I | 16 | 8 | 50.00% | 5 | 3 | 60.00% | |
美国白人组/AW | 20 | 0 | 0 | 24 | 0 | 0 | |
美国黑人组/AN | 10 | 1 | 10.00% | 22 | 3 | 15.00% | |
长阳组/CY | 32 | 25 | 78.10% | 50 | 42 | 84.00% | |
鱼化寨组/YHZ | 14 | 10 | 71.43% | 13 | 11 | 84.61% |
表3 不同人群乳齿上颌铲形门齿的出现情况
Tab.3 The occurrence of shovel ui1 and ui2 in different populations
组别/Groups | ui1 | ui2 | |||||
---|---|---|---|---|---|---|---|
n0 | n | 性状出现率 /Frequency | n0 | n | 性状出现率 /Frequency | ||
日本组/J | 124 | 95 | 76.60% | 163 | 152 | 93.30% | |
Pima印第安组/PI | 78 | 48 | 61.60% | 98 | 63 | 64.30% | |
因纽特组/I | 16 | 8 | 50.00% | 5 | 3 | 60.00% | |
美国白人组/AW | 20 | 0 | 0 | 24 | 0 | 0 | |
美国黑人组/AN | 10 | 1 | 10.00% | 22 | 3 | 15.00% | |
长阳组/CY | 32 | 25 | 78.10% | 50 | 42 | 84.00% | |
鱼化寨组/YHZ | 14 | 10 | 71.43% | 13 | 11 | 84.61% |
组别/Groups | 样本总 数/n0 | 2 | 3M | 3H | 4 | |||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
n | F | n | F | n | F | n | F | |||||
日本组/J | 184 | 28 | 15.20% | 111 | 60.30% | 8 | 4.30% | 37 | 20.10% | |||
美国白人组/AW | 55 | 33 | 60.00% | 13 | 23.60% | 9 | 16.40% | 0 | 0.00 | |||
美国黑人组/AN | 50 | 14 | 28.00% | 18 | 36.00% | 8 | 16.00% | 10 | 20.00% | |||
长阳组/CY | 33 | 6 | 18.20% | 18 | 54.50% | 3 | 9.10% | 6 | 18.20% | |||
鱼化寨组/YHZ | 22 | 2 | 9.10% | 10 | 45.45% | 0 | 0.00 | 10 | 45.45% |
表4 不同人群中上颌第一乳臼齿齿尖类型的出现情况
Tab.4 The occurrence of the cusp number of um1 in different populations
组别/Groups | 样本总 数/n0 | 2 | 3M | 3H | 4 | |||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
n | F | n | F | n | F | n | F | |||||
日本组/J | 184 | 28 | 15.20% | 111 | 60.30% | 8 | 4.30% | 37 | 20.10% | |||
美国白人组/AW | 55 | 33 | 60.00% | 13 | 23.60% | 9 | 16.40% | 0 | 0.00 | |||
美国黑人组/AN | 50 | 14 | 28.00% | 18 | 36.00% | 8 | 16.00% | 10 | 20.00% | |||
长阳组/CY | 33 | 6 | 18.20% | 18 | 54.50% | 3 | 9.10% | 6 | 18.20% | |||
鱼化寨组/YHZ | 22 | 2 | 9.10% | 10 | 45.45% | 0 | 0.00 | 10 | 45.45% |
图1 鱼化寨史前婴幼儿乳齿中部分前牙形态分类 1, 2, 3. ui1铲形结构(1~3级);4. ui1双铲形结构;5. ui1底结节;6, 7, 8. ui2铲形结构(1~3级);9, 10, 11. uc铲形结构(0~2级);12. uc底结节;13, 14, 15. lc铲形结构(1~3级)
Fig.1 Classification of partial anterior teeth of deciduous teeth of prehistoric infants in Yuhuazhai
组别/Groups | 样本总数/n0 | 性状出现率/Breakpoint Frequency | ||||
---|---|---|---|---|---|---|
0级 | 1级 | 2+3级 | 4+5级 | 6+7级 | ||
日本组/J | 185 | 32.40% | 30.80% | 24.90% | 6.50% | 5.40% |
美国白人组/AW | 56 | 5.40% | 19.60% | 39.30% | 14.30% | 21.40% |
美国黑人组/AN | 51 | 19.60% | 29.40% | 39.20% | 2.00% | 9.80% |
长阳组/CY | 34 | 67.60% | 17.70% | 2.90% | 8.80% | 2.90% |
鱼化寨组/YHZ | 26 | 42.31% | 46.15% | 3.85% | 7.69% | 0.00 |
表5 不同人群上颌第二乳臼齿卡氏尖的出现率
Tab.5 The occurrence of the Carabelli’s cusp of um2 in different populations
组别/Groups | 样本总数/n0 | 性状出现率/Breakpoint Frequency | ||||
---|---|---|---|---|---|---|
0级 | 1级 | 2+3级 | 4+5级 | 6+7级 | ||
日本组/J | 185 | 32.40% | 30.80% | 24.90% | 6.50% | 5.40% |
美国白人组/AW | 56 | 5.40% | 19.60% | 39.30% | 14.30% | 21.40% |
美国黑人组/AN | 51 | 19.60% | 29.40% | 39.20% | 2.00% | 9.80% |
长阳组/CY | 34 | 67.60% | 17.70% | 2.90% | 8.80% | 2.90% |
鱼化寨组/YHZ | 26 | 42.31% | 46.15% | 3.85% | 7.69% | 0.00 |
组别/Groups | 样本总数/n0 | 6尖/Cusp 6 | 7尖/Cusp 7 | |||
---|---|---|---|---|---|---|
n | F | n | F | |||
日本组/J | 156 | 58 | 36.90% | 115 | 73.70% | |
Pima印第安组/PI | 118 | 43 | 36.80% | 86 | 72.90% | |
因纽特组/I | 63 | 24 | 37.70% | 50 | 79.40% | |
美国白人组/AW | 54 | 4 | 7.30% | 22 | 40.70% | |
美国黑人组/AN | 47 | 7 | 14.00% | 22 | 46.80% | |
Ainu人组/AI | 25 | 6 | 23.80% | 18 | 71.40% | |
长阳组/CY | 37 | 16 | 42.90% | 17 | 46.00% | |
鱼化寨组/YHZ | 28 | 9 | 32.14% | 10 | 35.71% |
表6 不同人群下颌第二乳臼齿第6尖和第7尖的出现情况
Tab.6 The occurrence of cusp 6 and cusp 7 of lm1 and lm2 in different populations
组别/Groups | 样本总数/n0 | 6尖/Cusp 6 | 7尖/Cusp 7 | |||
---|---|---|---|---|---|---|
n | F | n | F | |||
日本组/J | 156 | 58 | 36.90% | 115 | 73.70% | |
Pima印第安组/PI | 118 | 43 | 36.80% | 86 | 72.90% | |
因纽特组/I | 63 | 24 | 37.70% | 50 | 79.40% | |
美国白人组/AW | 54 | 4 | 7.30% | 22 | 40.70% | |
美国黑人组/AN | 47 | 7 | 14.00% | 22 | 46.80% | |
Ainu人组/AI | 25 | 6 | 23.80% | 18 | 71.40% | |
长阳组/CY | 37 | 16 | 42.90% | 17 | 46.00% | |
鱼化寨组/YHZ | 28 | 9 | 32.14% | 10 | 35.71% |
组别/Groups | 样本总 数/n0 | 出现率/Breakpoint Frequency | |||
---|---|---|---|---|---|
0+1级 | 2+3级 | 4+5级 | 6级 | ||
日本组/J | 152 | 55.30% | 41.40% | 3.30% | 0 |
美国白人组/AW | 54 | 87.00% | 13.00% | 0 | 0 |
美国黑人组/AN | 47 | 83.00% | 14.90% | 2.10% | 0 |
长阳组/CY | 32 | 75.00% | 18.80% | 3.10% | 3.10% |
鱼化寨组/YHZ | 28 | 75.00% | 17.86% | 3.57% | 3.57% |
表7 不同人群下颌第二乳臼齿原副尖的出现率
Tab.7 The occurrence of protostylid of lm 2 in different populations
组别/Groups | 样本总 数/n0 | 出现率/Breakpoint Frequency | |||
---|---|---|---|---|---|
0+1级 | 2+3级 | 4+5级 | 6级 | ||
日本组/J | 152 | 55.30% | 41.40% | 3.30% | 0 |
美国白人组/AW | 54 | 87.00% | 13.00% | 0 | 0 |
美国黑人组/AN | 47 | 83.00% | 14.90% | 2.10% | 0 |
长阳组/CY | 32 | 75.00% | 18.80% | 3.10% | 3.10% |
鱼化寨组/YHZ | 28 | 75.00% | 17.86% | 3.57% | 3.57% |
图2 鱼化寨史前婴幼儿乳齿中部分后牙形态分 1, 2, 3. um1齿尖结构(2型,3M型,4型);4, 5, 6. um2齿尖结构(3+型,4-型,4型);7, 8, 9, 10. um2卡氏尖(0级,Ⅰ级,Ⅱ级,IV级);11, 12, 13. lm1齿冠形态(矩形,三角形,三角形);14, 15, 16. lm2齿尖结构(5尖型,6尖型,7尖型);17. lm2转向皱纹;18. lm2远中三角嵴;19, 20, 21, 22. lm2原副尖(0级,3级,4级,6级)
Fig.2 Classification of partial posterior teeth of deciduous teeth of prehistoric infants in Yuhuazhai
观察齿/Teeth | BL | MD | |||||||
---|---|---|---|---|---|---|---|---|---|
n | X | Sd | Cv | n | X | Sd | Cv | ||
ui1 | 16 | 5.50 | 1.30 | 23.73 | 16 | 6.88 | 0.73 | 10.55 | |
ui2 | 13 | 4.87 | 0.30 | 6.19 | 13 | 5.54 | 0.31 | 5.54 | |
uc | 12 | 5.92 | 0.47 | 7.86 | 12 | 7.03 | 0.24 | 3.40 | |
um1 | 19 | 9.00 | 0.59 | 6.50 | 19 | 6.86 | 0.47 | 6.93 | |
um2 | 27 | 9.62 | 0.62 | 6.44 | 27 | 9.30 | 0.84 | 9.02 | |
li1 | 4 | 3.82 | 0.48 | 12.58 | 4 | 4.17 | 0.36 | 8.59 | |
li2 | 12 | 4.29 | 0.34 | 7.94 | 12 | 4.70 | 0.30 | 6.42 | |
lc | 13 | 5.44 | 0.32 | 5.82 | 13 | 5.89 | 0.25 | 4.19 | |
lm1 | 24 | 7.38 | 0.81 | 10.97 | 24 | 8.55 | 0.68 | 7.97 | |
lm2 | 30 | 9.13 | 0.67 | 7.30 | 28 | 10.30 | 0.61 | 5.92 |
表8 鱼化寨史前婴幼儿乳齿测量值
Tab.8 Measured values of deciduous teeth of prehistoric infants in Yuhuazhai
观察齿/Teeth | BL | MD | |||||||
---|---|---|---|---|---|---|---|---|---|
n | X | Sd | Cv | n | X | Sd | Cv | ||
ui1 | 16 | 5.50 | 1.30 | 23.73 | 16 | 6.88 | 0.73 | 10.55 | |
ui2 | 13 | 4.87 | 0.30 | 6.19 | 13 | 5.54 | 0.31 | 5.54 | |
uc | 12 | 5.92 | 0.47 | 7.86 | 12 | 7.03 | 0.24 | 3.40 | |
um1 | 19 | 9.00 | 0.59 | 6.50 | 19 | 6.86 | 0.47 | 6.93 | |
um2 | 27 | 9.62 | 0.62 | 6.44 | 27 | 9.30 | 0.84 | 9.02 | |
li1 | 4 | 3.82 | 0.48 | 12.58 | 4 | 4.17 | 0.36 | 8.59 | |
li2 | 12 | 4.29 | 0.34 | 7.94 | 12 | 4.70 | 0.30 | 6.42 | |
lc | 13 | 5.44 | 0.32 | 5.82 | 13 | 5.89 | 0.25 | 4.19 | |
lm1 | 24 | 7.38 | 0.81 | 10.97 | 24 | 8.55 | 0.68 | 7.97 | |
lm2 | 30 | 9.13 | 0.67 | 7.30 | 28 | 10.30 | 0.61 | 5.92 |
观察齿/Teeth | 鱼化寨组/YHZ | 长阳组/CY | 现代中国组/MC | 现代印度组/MI | 澳大利亚土著组/AA | 美国白人组/AW | 北京猿人组/Bm | 淅川人组/Xm | 史前印度组/PI | 史前巴基斯坦组/PP | 斯里兰卡铁器时代组/IS | 欧洲中石器时代组/ME | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
例数/n | 87 | 156 | 100 | 29-114 | 69 | 19-34 | 4-9 | 7-27 | |||||
ui1 | BL | 5.50 | 5.00 | 5.40 | 5.20 | 5.50 | 5.10 | 5.30 | 5.20 | 5.30 | |||
MD | 6.88 | 6.80 | 7.30 | 6.60 | 7.40 | 6.40 | 6.80 | 6.60 | 7.00 | 7.20 | |||
ui2 | BL | 4.87 | 4.70 | 5.60 | 4.80 | 5.20 | 4.70 | 5.00 | 4.90 | 6.40 | 5.10 | ||
MD | 5.54 | 5.30 | 6.00 | 5.40 | 6.00 | 5.20 | 5.50 | 5.40 | 5.90 | 5.70 | |||
uc | BL | 5.92 | 5.60 | 6.20 | 6.10 | 6.60 | 6.10 | 5.90 | 5.80 | 7.20 | 6.40 | ||
MD | 7.03 | 6.60 | 7.30 | 6.70 | 7.40 | 6.80 | 6.70 | 6.80 | 9.10 | 7.30 | |||
um1 | BL | 9.00 | 7.40 | 9.20 | 8.80 | 9.10 | 8.30 | 9.00 | 9.10 | 7.30 | 8.60 | ||
MD | 6.86 | 8.90 | 7.40 | 7.30 | 7.60 | 6.70 | 7.40 | 7.60 | 9.40 | 7.40 | |||
um2 | BL | 9.62 | 9.40 | 10.10 | 9.90 | 10.70 | 9.50 | 10.00 | 9.80 | 9.10 | 10.30 | ||
MD | 9.30 | 9.70 | 9.40 | 9.20 | 9.70 | 8.80 | 9.50 | 9.00 | 2-7 | 9.10 | |||
例数/n | 81 | 163 | 100 | 18-115 | 69 | 1-5 | 20-39 | 3-14 | 1-5 | 7-27 | |||
li1 | BL | 3.82 | 3.90 | 4.40 | 3.90 | 4.30 | 3.90 | 3.60 | 4.10 | 3.80 | 5.30 | ||
MD | 4.17 | 4.40 | 4.80 | 4.10 | 4.50 | 4.00 | 4.30 | 4.30 | 4.00 | 7.20 | |||
li2 | BL | 4.29 | 4.10 | 4.90 | 4.30 | 4.80 | 4.40 | 4.40 | 4.40 | 4.90 | 5.10 | ||
MD | 4.70 | 4.50 | 5.30 | 4.70 | 5.00 | 4.60 | 4.90 | 4.70 | 5.30 | 5.70 | |||
lc | BL | 5.44 | 5.30 | 5.80 | 5.50 | 6.10 | 5.60 | 5.30 | 5.40 | 5.50 | 5.10 | 6.40 | |
MD | 5.89 | 6.00 | 6.00 | 5.80 | 6.30 | 5.80 | 6.10 | 5.80 | 6.00 | 6.00 | 7.30 | ||
lm1 | BL | 7.38 | 7.20 | 7.20 | 7.50 | 7.90 | 7.40 | 6.60 | 7.40 | 7.00 | 7.20 | 8.60 | |
MD | 8.55 | 8.50 | 8.50 | 8.00 | 8.20 | 7.90 | 7.70 | 8.40 | 8.30 | 8.80 | 7.40 | ||
lm2 | BL | 9.13 | 9.10 | 9.10 | 9.10 | 9.90 | 8.90 | 10.10 | 10.50 | 9.10 | 8.90 | 8.60 | 10.30 |
MD | 10.30 | 10.60 | 10.60 | 10.10 | 10.90 | 9.90 | 12.20 | 12.50 | 10.60 | 10.10 | 10.40 | 9.10 |
表9 鱼化寨史前婴幼儿乳齿测量值与其他人群乳齿测量值的比较
Tab.9 Comparison of the measured values of deciduous teeth of prehistoric infants in Yuhuazhai with those of other populations
观察齿/Teeth | 鱼化寨组/YHZ | 长阳组/CY | 现代中国组/MC | 现代印度组/MI | 澳大利亚土著组/AA | 美国白人组/AW | 北京猿人组/Bm | 淅川人组/Xm | 史前印度组/PI | 史前巴基斯坦组/PP | 斯里兰卡铁器时代组/IS | 欧洲中石器时代组/ME | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
例数/n | 87 | 156 | 100 | 29-114 | 69 | 19-34 | 4-9 | 7-27 | |||||
ui1 | BL | 5.50 | 5.00 | 5.40 | 5.20 | 5.50 | 5.10 | 5.30 | 5.20 | 5.30 | |||
MD | 6.88 | 6.80 | 7.30 | 6.60 | 7.40 | 6.40 | 6.80 | 6.60 | 7.00 | 7.20 | |||
ui2 | BL | 4.87 | 4.70 | 5.60 | 4.80 | 5.20 | 4.70 | 5.00 | 4.90 | 6.40 | 5.10 | ||
MD | 5.54 | 5.30 | 6.00 | 5.40 | 6.00 | 5.20 | 5.50 | 5.40 | 5.90 | 5.70 | |||
uc | BL | 5.92 | 5.60 | 6.20 | 6.10 | 6.60 | 6.10 | 5.90 | 5.80 | 7.20 | 6.40 | ||
MD | 7.03 | 6.60 | 7.30 | 6.70 | 7.40 | 6.80 | 6.70 | 6.80 | 9.10 | 7.30 | |||
um1 | BL | 9.00 | 7.40 | 9.20 | 8.80 | 9.10 | 8.30 | 9.00 | 9.10 | 7.30 | 8.60 | ||
MD | 6.86 | 8.90 | 7.40 | 7.30 | 7.60 | 6.70 | 7.40 | 7.60 | 9.40 | 7.40 | |||
um2 | BL | 9.62 | 9.40 | 10.10 | 9.90 | 10.70 | 9.50 | 10.00 | 9.80 | 9.10 | 10.30 | ||
MD | 9.30 | 9.70 | 9.40 | 9.20 | 9.70 | 8.80 | 9.50 | 9.00 | 2-7 | 9.10 | |||
例数/n | 81 | 163 | 100 | 18-115 | 69 | 1-5 | 20-39 | 3-14 | 1-5 | 7-27 | |||
li1 | BL | 3.82 | 3.90 | 4.40 | 3.90 | 4.30 | 3.90 | 3.60 | 4.10 | 3.80 | 5.30 | ||
MD | 4.17 | 4.40 | 4.80 | 4.10 | 4.50 | 4.00 | 4.30 | 4.30 | 4.00 | 7.20 | |||
li2 | BL | 4.29 | 4.10 | 4.90 | 4.30 | 4.80 | 4.40 | 4.40 | 4.40 | 4.90 | 5.10 | ||
MD | 4.70 | 4.50 | 5.30 | 4.70 | 5.00 | 4.60 | 4.90 | 4.70 | 5.30 | 5.70 | |||
lc | BL | 5.44 | 5.30 | 5.80 | 5.50 | 6.10 | 5.60 | 5.30 | 5.40 | 5.50 | 5.10 | 6.40 | |
MD | 5.89 | 6.00 | 6.00 | 5.80 | 6.30 | 5.80 | 6.10 | 5.80 | 6.00 | 6.00 | 7.30 | ||
lm1 | BL | 7.38 | 7.20 | 7.20 | 7.50 | 7.90 | 7.40 | 6.60 | 7.40 | 7.00 | 7.20 | 8.60 | |
MD | 8.55 | 8.50 | 8.50 | 8.00 | 8.20 | 7.90 | 7.70 | 8.40 | 8.30 | 8.80 | 7.40 | ||
lm2 | BL | 9.13 | 9.10 | 9.10 | 9.10 | 9.90 | 8.90 | 10.10 | 10.50 | 9.10 | 8.90 | 8.60 | 10.30 |
MD | 10.30 | 10.60 | 10.60 | 10.10 | 10.90 | 9.90 | 12.20 | 12.50 | 10.60 | 10.10 | 10.40 | 9.10 |
组别/Groups | 铲形门齿/Shoveling Incisor | 原副尖/protostylid | 转向皱纹 / Defecting Wrinkle | 6尖/Cusp 6 | 7尖/Cusp 7 | 卡氏尖 / Carabelli’s Cusp | ||
---|---|---|---|---|---|---|---|---|
ui1 | ui2 | lm2 | lm2 | lm2 | lm2 | um2 | ||
日本组/J | 76.60% | 93.30% | 44.70% | 71.60% | 36.90% | 73.70% | 11.90% | |
Pima印第安组/PI | 61.60% | 64.30% | 89.00% | 84.30% | 36.80% | 72.90% | 0.00 | |
因纽特组/I | 50.00% | 60.00% | 67.30% | 67.90% | 37.70% | 79.40% | 0.00 | |
美国白人组/AW | 0.00 | 0.00 | 14.50% | 13.00% | 7.30% | 40.70% | 35.70% | |
美国黑人组/AN | 10.00% | 15.00% | 17.00% | 19.10% | 14.00% | 46.80% | 11.80% | |
Ainu人组/AI | 50.00% | 66.70% | 45.50% | 70.00% | 23.80% | 71.40% | 16.00% | |
长阳组/CY | 78.10% | 84.00% | 25.00% | 92.30% | 42.90% | 46.00% | 11.70% | |
鱼化寨组/YHZ | 71.43% | 84.61% | 25.00% | 89.30% | 32.14% | 35.71% | 7.69% |
表10 蒙古人种牙齿复合体5项特征及卡氏尖在不同人群乳齿中的分布
Tab.10 The occurrence of 5 traits of Mongoloid dental complex and Carabelli’s cusp in the deciduous teeth of different populations
组别/Groups | 铲形门齿/Shoveling Incisor | 原副尖/protostylid | 转向皱纹 / Defecting Wrinkle | 6尖/Cusp 6 | 7尖/Cusp 7 | 卡氏尖 / Carabelli’s Cusp | ||
---|---|---|---|---|---|---|---|---|
ui1 | ui2 | lm2 | lm2 | lm2 | lm2 | um2 | ||
日本组/J | 76.60% | 93.30% | 44.70% | 71.60% | 36.90% | 73.70% | 11.90% | |
Pima印第安组/PI | 61.60% | 64.30% | 89.00% | 84.30% | 36.80% | 72.90% | 0.00 | |
因纽特组/I | 50.00% | 60.00% | 67.30% | 67.90% | 37.70% | 79.40% | 0.00 | |
美国白人组/AW | 0.00 | 0.00 | 14.50% | 13.00% | 7.30% | 40.70% | 35.70% | |
美国黑人组/AN | 10.00% | 15.00% | 17.00% | 19.10% | 14.00% | 46.80% | 11.80% | |
Ainu人组/AI | 50.00% | 66.70% | 45.50% | 70.00% | 23.80% | 71.40% | 16.00% | |
长阳组/CY | 78.10% | 84.00% | 25.00% | 92.30% | 42.90% | 46.00% | 11.70% | |
鱼化寨组/YHZ | 71.43% | 84.61% | 25.00% | 89.30% | 32.14% | 35.71% | 7.69% |
组别/Groups | 鱼化寨组~日本组 | 鱼化寨组~ Pima印第安组 | 鱼化寨组~ 因纽特组 | 鱼化寨组~ 美国白人组 | 鱼化寨组~ 美国黑人组 | 鱼化寨组~Ainu人组 | 鱼化寨组~ 长阳组 |
---|---|---|---|---|---|---|---|
δm值 | 0.30 | 0.58 | 0.48 | 1.83 | 1.30 | 0.42 | 0.09 |
表11 鱼化寨组与其他组之间的δm值比较
Tab.11 Comparison of δm values between Yuhuazhai group and other groups
组别/Groups | 鱼化寨组~日本组 | 鱼化寨组~ Pima印第安组 | 鱼化寨组~ 因纽特组 | 鱼化寨组~ 美国白人组 | 鱼化寨组~ 美国黑人组 | 鱼化寨组~Ainu人组 | 鱼化寨组~ 长阳组 |
---|---|---|---|---|---|---|---|
δm值 | 0.30 | 0.58 | 0.48 | 1.83 | 1.30 | 0.42 | 0.09 |
因子/Fcators | 1 | 2 | 3 | 4 |
---|---|---|---|---|
特征值/Total | 4.419 | 1.759 | 0.508 | 0.180 |
贡献率/Of Variance | 63.128% | 25.133% | 7.254% | 2.577% |
累计贡献率/Cumulative | 63.128% | 88.261% | 95.514% | 98.092% |
因子载荷矩阵/ Factor loading Matrix | ||||
铲形门齿/Shoveling Incisor(ui1) | 0.938 | -0.233 | 0.233 | -0.039 |
铲形门齿/Shoveling incisor(ui2) | 0.927 | -0.226 | 0.275 | -0.096 |
原副尖/Protostylid(lm2) | 0.635 | 0.705 | -0.145 | 0.274 |
转向皱纹/Defecting Wrinkle(lm2) | 0.951 | -0.200 | 0.099 | 0.113 |
6尖/Cusp 6(lm2) | 0.696 | -0.611 | -0.287 | 0.119 |
7尖/Cusp 7(lm2) | 0.481 | 0.827 | 0.215 | -0.082 |
卡氏尖/Carabelli’s Cusp (um2) | -0.809 | -0.245 | 0.468 | 0.247 |
表12 因子分析结果
Tab.12 Results of factor analysis
因子/Fcators | 1 | 2 | 3 | 4 |
---|---|---|---|---|
特征值/Total | 4.419 | 1.759 | 0.508 | 0.180 |
贡献率/Of Variance | 63.128% | 25.133% | 7.254% | 2.577% |
累计贡献率/Cumulative | 63.128% | 88.261% | 95.514% | 98.092% |
因子载荷矩阵/ Factor loading Matrix | ||||
铲形门齿/Shoveling Incisor(ui1) | 0.938 | -0.233 | 0.233 | -0.039 |
铲形门齿/Shoveling incisor(ui2) | 0.927 | -0.226 | 0.275 | -0.096 |
原副尖/Protostylid(lm2) | 0.635 | 0.705 | -0.145 | 0.274 |
转向皱纹/Defecting Wrinkle(lm2) | 0.951 | -0.200 | 0.099 | 0.113 |
6尖/Cusp 6(lm2) | 0.696 | -0.611 | -0.287 | 0.119 |
7尖/Cusp 7(lm2) | 0.481 | 0.827 | 0.215 | -0.082 |
卡氏尖/Carabelli’s Cusp (um2) | -0.809 | -0.245 | 0.468 | 0.247 |
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