{"title":"墨西哥晚更新世人类Naia的牙齿形态与sinodon /Sundadont问题","authors":"A. Cucina, Elma Maria Vega Lizama, J. Chatters","doi":"10.1080/20555563.2021.1895531","DOIUrl":null,"url":null,"abstract":"ABSTRACT The dental morphology of the earliest Americans is poorly known, partly because existing data are largely unpublished and partly because dental wear is typically extreme in the few complete dentitions available. The remains of Naia, a 13,000–12,000 year-old young woman from Mexico's Yucatan Peninsula, possess a complete dental record in perfect condition, offering the unique opportunity to record the dental morphology of an early Paleoindian and a chance to address the long-standing debate about whether these first people exhibited Sundadont or Sinodont dental morphology. As an individual, her dentition would fit comfortably in the Sinodont grouping. However, when she is included in the population of North American skeletal remains that can be confidently placed before ∼9000 years ago, a different pattern emerges. The Paleoindians fall neatly between the two dental patterns, suggesting that the founding North American population exhibits a dental pattern of its own, independent of its east Asian relatives.","PeriodicalId":37319,"journal":{"name":"PaleoAmerica","volume":null,"pages":null},"PeriodicalIF":1.6000,"publicationDate":"2021-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/20555563.2021.1895531","citationCount":"1","resultStr":"{\"title\":\"Dental Morphology of Naia, a Late Pleistocene Human from Mexico and the Sinodont/Sundadont Issue\",\"authors\":\"A. Cucina, Elma Maria Vega Lizama, J. Chatters\",\"doi\":\"10.1080/20555563.2021.1895531\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"ABSTRACT The dental morphology of the earliest Americans is poorly known, partly because existing data are largely unpublished and partly because dental wear is typically extreme in the few complete dentitions available. The remains of Naia, a 13,000–12,000 year-old young woman from Mexico's Yucatan Peninsula, possess a complete dental record in perfect condition, offering the unique opportunity to record the dental morphology of an early Paleoindian and a chance to address the long-standing debate about whether these first people exhibited Sundadont or Sinodont dental morphology. As an individual, her dentition would fit comfortably in the Sinodont grouping. However, when she is included in the population of North American skeletal remains that can be confidently placed before ∼9000 years ago, a different pattern emerges. The Paleoindians fall neatly between the two dental patterns, suggesting that the founding North American population exhibits a dental pattern of its own, independent of its east Asian relatives.\",\"PeriodicalId\":37319,\"journal\":{\"name\":\"PaleoAmerica\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.6000,\"publicationDate\":\"2021-04-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1080/20555563.2021.1895531\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"PaleoAmerica\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1080/20555563.2021.1895531\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ANTHROPOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"PaleoAmerica","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1080/20555563.2021.1895531","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ANTHROPOLOGY","Score":null,"Total":0}
Dental Morphology of Naia, a Late Pleistocene Human from Mexico and the Sinodont/Sundadont Issue
ABSTRACT The dental morphology of the earliest Americans is poorly known, partly because existing data are largely unpublished and partly because dental wear is typically extreme in the few complete dentitions available. The remains of Naia, a 13,000–12,000 year-old young woman from Mexico's Yucatan Peninsula, possess a complete dental record in perfect condition, offering the unique opportunity to record the dental morphology of an early Paleoindian and a chance to address the long-standing debate about whether these first people exhibited Sundadont or Sinodont dental morphology. As an individual, her dentition would fit comfortably in the Sinodont grouping. However, when she is included in the population of North American skeletal remains that can be confidently placed before ∼9000 years ago, a different pattern emerges. The Paleoindians fall neatly between the two dental patterns, suggesting that the founding North American population exhibits a dental pattern of its own, independent of its east Asian relatives.
PaleoAmericaEarth and Planetary Sciences-Paleontology
CiteScore
3.70
自引率
0.00%
发文量
15
期刊介绍:
PaleoAmerica disseminates new research results and ideas about early human dispersal and migrations, with a particular focus on the Americas. It fosters an interdisciplinary dialog between archaeologists, geneticists and other scientists investigating the dispersal of modern humans during the late Pleistocene. The journal has three goals: First and foremost, the journal is a vehicle for the presentation of new research results. Second, it includes editorials on special topics written by leaders in the field. Third, the journal solicits essays covering current debates in the field, the state of research in relevant disciplines, and summaries of new research findings in a particular region, for example Beringia, the Eastern Seaboard or the Southern Cone of South America. Although the journal’s focus is the peopling of the Americas, editorials and research essays also highlight the investigation of early human colonization of empty lands in other areas of the world. As techniques are developing so rapidly, work in other regions can be very relevant to the Americas, so the journal will publish research relating to other regions which has relevance to research on the Americas.