Abstract:
:All current standardized methods of age determination using the os pubis were tested by blind assessment of a skeletal sample with documented ages (from the Todd collection; N = 96). No demographic data (sex, age, race, age composition) were known to the assessors prior to completion of the test. Results showed the Todd method to be more reliable than more recent component techniques and that all systems tended to underage. Therefore, modifications were made of the Todd system to eliminate this and other deficiencies, and a second test using a new sample was conducted (N = 109). The age distribution determined by the revised Todd method did not significantly differ from the actual age distribution of the second sample. Error due to race was nonsignificant. Biological stages of pubic metamorphosis are described and possible evolutionary specializations of the hominid symphysis are discussed. Revised standards for age determination are presented.
journal_name
Am J Phys Anthropoljournal_title
American journal of physical anthropologyauthors
Meindl RS,Lovejoy CO,Mensforth RP,Walker RAdoi
10.1002/ajpa.1330680104subject
Has Abstractpub_date
1985-09-01 00:00:00pages
29-45issue
1eissn
0002-9483issn
1096-8644journal_volume
68pub_type
杂志文章abstract::Attention is called to a disputed diagnosis of trephination reported for a perforated skull of a prehistoric New England Indian. The perforation, surrounded by a saucer-like depression, is located exactly in the midline just in front of bregma. The finding of a similar lesion in a prehistoric Indian skull from the Nor...
journal_title:American journal of physical anthropology
pub_type: 历史文章,杂志文章
doi:10.1002/ajpa.1330420310
更新日期:1975-05-01 00:00:00
abstract::Chimpanzees show cultural differences among populations across Africa but also between neighboring communities. The extent of these differences among neighbors, however, remains largely unknown. Comparing three neighboring chimpanzee community in the Taï National Park, Côte d'Ivoire, we found 27 putative cultural trai...
journal_title:American journal of physical anthropology
pub_type: 杂志文章
doi:10.1002/ajpa.22628
更新日期:2015-01-01 00:00:00
abstract::Ontogenetic samples of endocranial volumes (EVs) from great apes and humans are critical for understanding the evolution of the brain growth pattern in the hominin lineage. However, high quality ontogenetic data are scarce, especially for nonhuman primates. Here, we provide original data derived from an osteological c...
journal_title:American journal of physical anthropology
pub_type: 杂志文章
doi:10.1002/ajpa.21641
更新日期:2012-02-01 00:00:00
abstract::We report the results of a study of the prevalence of nonsyndromic dental agenesis among a sample of 208 individuals (105 females, 103 males) between the ages of 15 and 29 years from a North American religious and genetic isolate, the Dariusleut Hutterites of Western Canada. Direct examination of dental casts, oral ex...
journal_title:American journal of physical anthropology
pub_type: 杂志文章
doi:10.1002/ajpa.1330820205
更新日期:1990-06-01 00:00:00
abstract::The wild bonobos (Pan paniscus) of Wamba, Zaire have an extremely high frequency of external abnormal traits. Out of 96 animals in a sample comprising all age and sex classes from two different natural groups, 46 individuals had at least one limb defect. The frequency of abnormalities was greater in males than in fema...
journal_title:American journal of physical anthropology
pub_type: 杂志文章
doi:10.1002/ajpa.1330630102
更新日期:1984-01-01 00:00:00
abstract::The rise of two sub-specialties in Physical Antrhopology traces back to the Anatomy Departments of Schools of Medicine in Germany and France during the nineteenth century. The study of human diversity in bones and bodies was largely by medically-trained anatomists. There developed Medical Antropology and Dental Anthro...
journal_title:American journal of physical anthropology
pub_type: 杂志文章
doi:10.1002/ajpa.1330450317
更新日期:1976-11-01 00:00:00
abstract::This study examines patterns of growth in height and weight among children (< 60 months) of highland and coastal agricultural communities of Ecuador. Highland children are significantly shorter, but not significantly lighter than their coastal peers. Linear growth rates (cm/6 months) are comparable between the two sam...
journal_title:American journal of physical anthropology
pub_type: 杂志文章
doi:10.1002/ajpa.1330980105
更新日期:1995-09-01 00:00:00
abstract:OBJECTIVES:Differences in dental caries prevalence between males and females is considered a reflection of diet. However, recent syntheses argue that sex-specific variation in dental caries prevalence also reflects changes in the oral cavity attributable to variation in reproductive life histories. This study explores ...
journal_title:American journal of physical anthropology
pub_type: 杂志文章
doi:10.1002/ajpa.24034
更新日期:2020-07-01 00:00:00
abstract::Sexual dimorphism in primate species expresses the effects of phylogeny, life history, behavior, and ontogeny. The causes and implications of sexual dimorphism have been studied in several different primates using a variety of morphological databases such as body weight, canine length, and coat color and ornamentation...
journal_title:American journal of physical anthropology
pub_type: 杂志文章
doi:10.1002/(SICI)1096-8644(199811)107:3<243::AID-AJPA
更新日期:1998-11-01 00:00:00
abstract::Lactase persistence (LP) is the phenotypic trait in which lactase secretion is maintained during adulthood. LP is due to mutations in the LCT enhancer region, located 14-kb upstream of the gene. In Europeans, the -13910*T allele is associated with LP. In Africans this allele is rare while other mutations in this same ...
journal_title:American journal of physical anthropology
pub_type: 杂志文章
doi:10.1002/ajpa.22010
更新日期:2012-03-01 00:00:00
abstract::The energy demands of pregnancy and lactation together with the accumulation of stored fat in human females during development suggest that a critical level of fat may be required for menarche; but multivariate analyses have supported the alternative view that skeletal growth is the main factor. However, significant d...
journal_title:American journal of physical anthropology
pub_type: 杂志文章
doi:10.1002/ajpa.20644
更新日期:2007-08-01 00:00:00
abstract::This article presents the results of a study of infant diet at two Iron Age sites on the island of Öland, Sweden. The cemetery at Bjärby contained a large number of subadults who had survived the earliest years of life, whereas most individuals at Triberga had died by 6 months of age. To investigate whether difference...
journal_title:American journal of physical anthropology
pub_type: 历史文章,杂志文章
doi:10.1002/ajpa.22113
更新日期:2012-10-01 00:00:00
abstract::This study attempts to fill a persistent gap in the literature by documenting the timing of epiphyseal union at the vertebral end of the ribs in a sample of modern Portuguese skeletons. The skeletal remains of 53 females and 45 males, between the ages of 11 and 30, were taken from the Lisbon documented skeletal collec...
journal_title:American journal of physical anthropology
pub_type: 杂志文章
doi:10.1002/ajpa.21065
更新日期:2009-10-01 00:00:00
abstract::In this paper we discuss diet and health changes of millet agriculturists in Northern China, Shaanxi province, during the period 7,000-4,000 BP. An episode of intensive climatic oscillations that preceded the onset of colder climate circa the fifth millennium BP divides the period (Shi et al. [1993] Global Planet. Cha...
journal_title:American journal of physical anthropology
pub_type: 杂志文章
doi:10.1002/ajpa.10014
更新日期:2002-01-01 00:00:00
abstract::Although there is evidence for reduced fertility in Andean and Himalayan populations at higher altitudes, factors other than hypoxia may be primarily responsible. A valuable approach in the investigation of these fertility determinants is the use of salivary steroid assays. However, coca-leaf chewing--a ubiquitous pra...
journal_title:American journal of physical anthropology
pub_type: 杂志文章
doi:10.1002/ajpa.1330920410
更新日期:1993-12-01 00:00:00
abstract::This study evaluates the relationship between age at death and pelvic size among adults in three prehistoric Amerindian populations. The issue is to identify if the pelvis continues to grow and remodel in adulthood, or if there is differential survivorship among adults, particularly among females, based on pelvic size...
journal_title:American journal of physical anthropology
pub_type: 杂志文章
doi:10.1002/ajpa.1330950103
更新日期:1994-09-01 00:00:00
abstract::In comparing long-bone cross-sectional geometric properties between individuals, percentages of bone length are often used to identify equivalent locations along the diaphysis. In fragmentary specimens where bone lengths cannot be measured, however, these locations must be estimated more indirectly. In this study, we ...
journal_title:American journal of physical anthropology
pub_type: 历史文章,杂志文章
doi:10.1002/ajpa.21153
更新日期:2010-02-01 00:00:00
abstract::Although previous studies have characterized the genetic structure of populations from Haiti and Jamaica using classical and autosomal STR polymorphisms, the patrilineal influences that are present in these countries have yet to be explored. To address this lacuna, the current study aims to investigate, for the first ...
journal_title:American journal of physical anthropology
pub_type: 杂志文章
doi:10.1002/ajpa.22090
更新日期:2012-08-01 00:00:00
abstract::In the 1930s subadult hominin remains and Mousterian artifacts were discovered in the Teshik-Tash cave in South Uzbekistan. Since then, the majority of the scientific community has interpreted Teshik-Tash as a Neanderthal. However, some have considered aspects of the morphology of the Teshik-Tash skull to be more simi...
journal_title:American journal of physical anthropology
pub_type: 杂志文章
doi:10.1002/ajpa.22133
更新日期:2012-11-01 00:00:00
abstract:OBJECTIVES:We tested whether patterns of intraspecific variation in catarrhine vertebral shape are consistent with developmental or functional predictions. Intraspecific variation was compared across column regions, morphological features, and species. Transitional regions and later ossifying morphological features wer...
journal_title:American journal of physical anthropology
pub_type: 杂志文章
doi:10.1002/ajpa.23730
更新日期:2019-01-01 00:00:00
abstract::One trait that distinguishes the walking gaits of most primates from those of most mammalian nonprimates is the distribution of weight between the forelimbs and hindlimbs. Nonprimate mammals generally experience higher vertical peak substrate reaction forces on the forelimb than on the hindlimb. Primates, in contrast,...
journal_title:American journal of physical anthropology
pub_type: 杂志文章
doi:10.1002/ajpa.20385
更新日期:2006-08-01 00:00:00
abstract::Maternal reproductive investment includes both the energetic costs of gestation and lactation. For most humans, the metabolic costs of lactation will exceed those of gestation. Mothers must balance reproductive investment in any single offspring against future reproductive potential. Among mammals broadly, mothers may...
journal_title:American journal of physical anthropology
pub_type: 杂志文章
doi:10.1002/ajpa.22346
更新日期:2013-10-01 00:00:00
abstract::The Nariokotome Homo erectus has an apparent disjunction of inferred age as judged by dental maturity, by epiphyseal closure and by stature, when compared to modern human norms. On this basis, it has been suggested that this fossil hominin differed in its pattern of growth and development from modern humans. In partic...
journal_title:American journal of physical anthropology
pub_type: 杂志文章
doi:10.1002/(SICI)1096-8644(199909)110:1<81::AID-AJPA7
更新日期:1999-09-01 00:00:00
abstract::In a survey of dental health status of ancient Southern Peru, 101 skeletal remains were studied from five cultures: Paracas, Nazca, Tiahuanaco, Ica, and Inca. The Paracas and Ica cultures exhibited more missing antemortem teeth per mandible than the other cultures. Frequency of missing one or more third molars was les...
journal_title:American journal of physical anthropology
pub_type: 历史文章,杂志文章
doi:10.1002/ajpa.1330460117
更新日期:1977-01-01 00:00:00
abstract::The approximal surfaces of premolars and molars of 376 adult British-Romano skulls were examined for wear facets. The type of wear was designated as convex, concave, sigmoid, or flat, and the degree was categorised on a three-point scale. Concave wear facets were more frequently seen in the older age groups, but the t...
journal_title:American journal of physical anthropology
pub_type: 历史文章,杂志文章
doi:10.1002/ajpa.1330730309
更新日期:1987-07-01 00:00:00
abstract::Determination of inseparable exogenous and endogenous levels of toxic trace elements such as lead in human scalp hair has been used to understand and assess population exposure to such elements. For any such analysis, washing of the hair samples to remove superficial contamination is the foremost requirement. However,...
journal_title:American journal of physical anthropology
pub_type: 杂志文章
doi:10.1002/ajpa.1083
更新日期:2001-07-01 00:00:00
abstract::Data on orangutans (Pongo pygmaeus abelii) living in a Sumatran swamp forest yield an estimated median interbirth interval of at least 8 years, concurring with findings from other sites. This longest known mammalian interbirth interval appears due to maternal amenorrhea during the long exclusive dependence of the offs...
journal_title:American journal of physical anthropology
pub_type: 杂志文章
doi:10.1002/ajpa.10426
更新日期:2005-05-01 00:00:00
abstract::It has been generally assumed and theoretically argued that the curvature of finger and toe bones seen in some nonhuman primates is associated with cheiridial use in an arboreal setting. Assessment of such curvature in fossil primates has been used to infer the positional behavior of these animals. Several methods of ...
journal_title:American journal of physical anthropology
pub_type: 杂志文章
doi:10.1002/ajpa.1330970102
更新日期:1995-05-01 00:00:00
abstract::The premise that bones grow and remodel throughout life to adapt to their mechanical environment is often called Wolff's law. Wolff's law, however, is not always true, and in fact comprises a variety of different processes that are best considered separately. Here we review the molecular and physiological mechanisms b...
journal_title:American journal of physical anthropology
pub_type: 杂志文章,评审
doi:10.1002/ajpa.20155
更新日期:2004-01-01 00:00:00
abstract::Periodic episodes of food scarcity may highlight the adaptive value of certain anatomical traits, particularly those that facilitate the acquisition and digestion of exigent fallback foods. To better understand the selective pressures that favored the distinctive dental and locomotor morphologies of gibbons and orangu...
journal_title:American journal of physical anthropology
pub_type: 杂志文章
doi:10.1002/ajpa.21119
更新日期:2009-12-01 00:00:00