D Guatelli-Steinberg
Biographic Data
| ID | 3828 |
|---|---|
| NAME | D Guatelli-Steinberg |
| GIVEN NAMES | D |
| FAMILY NAME | Guatelli-Steinberg |
| SIGNATURE | GUATELLI-STEINBERG D |
| AFFILIATIONS | The Ohio State University |
| ORCID | 0000-0002-1345-5384 |
| VERIFIED | Yes |
| TOTAL WORKS | 75 |
| TOTAL CITATIONS | 676 |
| AUTHOR COUNT | 75 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1998 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 16 |
Dietary Adaptation in Paranthropus robustus Postcanine Teeth
The Meaning of Mangabey Molars (And Premolars)
The postcanine teeth of mangabeys (members of Cercocebus and Lophocebus ) have figured prominently in discussions about the relationship between hard‐object feeding and dental form. Grey‐cheeked mangabeys ( Lophocebus albigena ) and sooty mangabeys ( Cercocebus atys ) both have thickly enameled posterior teeth. Thick enamel in the former is argued to be response to fallback consumption of hard‐object foods, whereas in the latter, this feature is …
CSViewer for Analysts
The Cayo Santiago (CS) rhesus macaque colony has raised a total of over 11,000 animals in a free‐ranging setting very close to the natural environment. The well‐kept individual and family records, as well as social group management data, have been a valuable source for anthropological research. However, the various sources of data have been stored in separation, and there was no straightforward way for researchers to access them directly. Since 2…
Revisiting Linear Enamel Hypoplasia in Cayo Santiago Rhesus Macaques ( Macaca mulatta )
Linear enamel hypoplasias (LEHs) are development defects appearing as lines or grooves on enamel surfaces. Forming when physiological stressors disrupt developing teeth, LEHs provide retrospective insight into stress experienced in early development. Here, LEHs in Cayo Santiago rhesus macaques ( Macaca mulatta ) were observed with respect to decade of birth, whether an individual was transferred from the free‐ranging colony to the captive facilit…
CSViewer for Analysts
The Cayo Santiago rhesus colony and its derived skeletal collections provide abundant data made available since its founding in 1938. A project supported by an NSF collaborative grant has been committed to building a database that integrates the genetic and age‐related information of the colony, together with social group interactions and environmental effects, aiming to provide a knowledge model to researchers with insights from this powerful no…
Dental Fluctuating Asymmetry
Increased fluctuating asymmetry, or random differences between right and left sides, has been associated with developmental stress or developmental instability. This study examines fluctuating asymmetry (FA) of mesio‐distal and bucco‐lingual dimensions of deciduous maxillary molars (m 1 , m 2 ), and permanent maxillary premolars and molars (P 3 , P 4 , M 1 , M 2 ) of 466 rhesus macaques ( Macaca mulatta ) born between 1950 and 2018 from Cayo Sant…
Uniform, circular, and shallow enamel pitting in hominins
This study explores a particular form of enamel pitting originally identified in Paranthropus robustus. We call this uniform, circular, and shallow (UCS) pitting to distinguish it from more irregular and nonuniform defects often associated with enamel hypoplasia. We pose the hypothesis that UCS pitting is unique to the genus Paranthropus. We test this by investigating hominin dental remains from the ca. 3.4 Ma to ca. 1.1 Ma fossiliferous sequence…
Differences in maxillary premolar form between Cercocebus and Lophocebus
Longitudinal changes in juvenile and adolescent body mass indices before, during, and after the Covid ‐19 lockdown in New Zealand
Results are mostly consistent with the "structured days" hypothesis, but challenge the bidirectional hypothesis as defined. Further research better characterizing risks of gains in adiposity are needed
A histological study of enamel developmental defects in a chacma baboon (Papio ursinus) incisor
Physiological stress disrupts normal growth creating visible grooves on the enamel surface (i.e., linear enamel hypoplasia or LEH). Hypoplastic defects often, but not always, co-occur with internal accentuated lines (AL). Monkeys reportedly exhibit fewer enamel defects than hominoids as their presumably faster-growing teeth produce shallower LEH defects that are harder to macroscopically identify. In this case study of a chacma baboon (Papio ursi…
Aspects of molar form and dietary proclivities of African colobines
Dental macrowear, diet, and anterior tooth use in Colobus polykomos and Piliocolobus badius
Heterogeneous frailty and the expression of linear enamel hypoplasia in a genealogical population
OBJECTIVES: Linear enamel hypoplasia (LEH) is a common skeletal marker of physiological stress (e.g., malnutrition or illness) that is studied within and across populations, without reference to familial risk. We examine LEH prevalence in a population with known genealogical relationships to determine the potential influence of genetic heritability and shared environment. METHODS: LEH data of 239 individuals from a single population were recorded…
An inconstant biorhythm
OBJECTIVES: Human tooth enamel retains evidence of growth in the form of Retzius lines. The number of daily growth increments between the regularly occurring lines defines their repeat interval, or periodicity. Retzius periodicity is often incorporated into enamel formation times, age-at-death reconstructions, or used to provide a basis from which to explore an underlying biorhythm. Biological anthropologists typically assume that RP remains cons…
Differences in enamel defect expression and enamel growth variables in Macaca fascicularis and Trachypithecus cristatus from Sabah, Borneo
A broader perspective on estimating dental age for the Xujiayao juvenile, a late Middle Pleistocene archaic hominin from East Asia
Enamel chipping in Taï Forest cercopithecids
Is There a Link Between Matriline Dominance Rank and Linear Enamel Hypoplasia? An Assessment of Defect Prevalence and Count in Cayo Santiago Rhesus Macaques (Macaca mulatta)
Quantitative genetic analyses of postcanine morphological crown variation
OBJECTIVES: This article presents estimates of narrow-sense heritability and bivariate genetic correlation for 14 tooth crown morphological variants scored on permanent premolars, first molars, and second molars. The objective is to inform data collection and analytical practices in dental biodistance and to provide insights on the development of molar crowns as integrated structures. MATERIALS AND METHODS: African American dental casts from the …
Faster growth corresponds with shallower linear hypoplastic defects in great ape canines
Quantifying linear enamel hypoplasia in Virunga Mountain gorillas and other great apes
OBJECTIVE: Linear enamel hypoplasia (LEH) is a condition marked by localized reductions in enamel thickness, resulting from growth disruptions during dental development. We use quantitative criteria to characterize the depth of LEH defects and "normal" perikymata in great apes. We test the hypothesis that mountain gorillas have shallow defects compared to other taxa, which may have led to their underestimation in previous studies. MATERIALS AND M…
Heritability and genetic integration of anterior tooth crown variants in the South Carolina Gullah
OBJECTIVES: This article presents estimates of narrow-sense heritability and bivariate genetic correlation for a series of morphological crown variants of the anterior dentition. These results provide insight into the value of dental phenotypes as evolutionary proxies, as well as the development of tooth crowns as integrated or modular structures. MATERIALS AND METHODS: African American dental casts from the Menegaz-Bock collection were scored fo…
Dental anthropology in the Ajpa
The roots of dental anthropology in the American Journal of Physical Anthropology (AJPA) go deep. Aleš Hrdlička published his classic comparative study “Shovel-Shaped Teeth” in the AJPA in 1920, just two years after founding the journal. Hrdlička's study on shovel-shaped teeth exemplified his overall vision of physical anthropology, as articulated in the AJPA's inaugural issue. Here, in a 23-page essay, he defined the field of physical anthropolo…
Brief Communication
Variation in enamel formation has become increasingly important in comparative studies of dental development. Previously published work on the development of human enamel in groups from southern Africa and northern Europe has allowed for more accurate estimation of formation timing of linear enamel hypoplasias. Currently, although data for all tooth types has been published, charts of enamel growth by decile useful in this type of estimation have…
Patterns of lateral enamel growth in Homo naledi as assessed through perikymata distribution and number
Ancient teeth and modern human origins
Did the lateral enamel of Neandertal anterior teeth grow differently from that of modern humans
Variation in modern human premolar enamel formation times
Prevalence and the duration of linear enamel hypoplasia
What molars contribute to an emerging understanding of lateral enamel formation in Neandertals vs. modern humans
Enamel extension rate patterns in modern human teeth
Brief communication
This report documents greater variability in early hominin first molar dental trait frequencies than previous research indicated. Specifically, frequencies of several M1 dental traits that previously appeared to uniquely characterize Paranthropus are shown here to resemble those of the A. afarensis sample from Hadar. Like Paranthropus, A. afarensis from Hadar has a high frequency of cusp 6 and a low frequency of the protostylid. Paranthropus and …
Recent studies of dental development in Neandertals
Did Neandertals share with modern humans their prolonged periods of growth and delayed ages of maturation? During the past five years, renewed interest in this question has produced dental studies with seemingly contradictory results. Some suggest fast dental growth, 1 , 2 while others appear to suggest a slower, modern‐human dental growth pattern. 3 , 4 Although some apparent contradictions can be reconciled, there remain questions that can be r…
Macroscopic and microscopic analyses of linear enamel hypoplasia in Plio‐Pleistocene South African hominins with respect to aspects of enamel development and morphology
This study uses macroscopic and microscopic methods to analyze the expression of linear enamel hypoplasia (LEH) in Plio‐Pleistocene South African hominins. LEH is a developmental defect of enamel that is used in many anthropological contexts as a physiological stress indicator. Previous research has not settled the question as to whether differences in LEH expression exist between Paranthropus and Australopithecus and if they exist, to what exten…
Brief communication
Recent studies have suggested that Neandertals and modern humans differ in the distribution of perikymata (enamel growth increments) over their permanent anterior tooth crowns. In modern humans, perikymata become increasingly more compact toward the cervix than they do in Neandertals. Previous studies have suggested that a more homogeneous distribution of perikymata, like that of Neandertals, characterizes the anterior teeth of Homo heidelbergens…
Do nuclear DNA and dental nonmetric data produce similar reconstructions of regional population history? An example from modern coastal K enya
This study investigates whether variants in dental morphology and nuclear DNA provide similar patterns of intergroup affinity among regional populations using biological distance (biodistance) estimates. Many biodistance studies of archaeological populations use skeletal variants in lieu of ancient DNA, based on the widely accepted assumption of a strong correlation between phenetic‐ and genetic‐based affinities. Within studies of dental morpholo…
Analysis and significance of linear enamel hypoplasia in Plio‐Pleistocene hominins
This study of linear enamel hypoplasia (LEH) in Plio‐Pleistocene hominins builds on a previous study (Guatelli‐Steinberg [ 2003 ] Am. J. Phys. Anthropol. 120: 309–322) that focused on LEH in early South African hominins. The present study is more comprehensive, encompassing dental specimens of hominins from East Africa as well, including early Homo . As a developmental defect of enamel, LEH is used in anthropological contexts to reveal informatio…
Linear enamel hypoplasia as an indicator of physiological stress in great apes
Physiological stress, such as malnutrition or illness, can disrupt normal enamel growth, resulting in linear enamel hypoplasias (LEHs). Although ecological factors may contribute to LEH expression, other factors, such as surface abrasion and enamel growth variables, are also likely to be involved. Attention to these other factors is necessary before we can begin to understand what LEH might signify in terms of ecological sources of physiological …
Brief Communication
This study investigates changes in the prevalence of linear enamel hypoplasia (LEH) before and after the shift from irregular to regular provisioning in the Cayo Santiago rhesus monkey population. Prior to 1956, monkeys on this island colony did not receive consistent provisions, and were reported to be in poor health (Rawlins and Kessler 1986 The Cayo Santiago Macaques; Albany: State University of New York Press). A regular provisioning program,…
Sex differences in anthropoid mandibular canine lateral enamel formation
Previous research has demonstrated that great ape and macaque males achieve large canine crown sizes primarily through extended canine growth periods. Recent work has suggested, however, that platyrrhine males may achieve larger canine sizes by accelerating rather than prolonging growth. This study tested the hypothesis that the ontogenetic pathway leading to canine sexual dimorphism in catarrhines differs from that of platyrrhines. To test this …
Dental fluctuating asymmetry in the Gullah
In this investigation, deciduous teeth (canines, c; first molars, m1; second molars, m2) and their permanent successors (canines, C; first premolars, P1; second premolars, P2) were used to test two related hypotheses about fluctuating asymmetry (FA). First, based on the biology of the developing dentition, it was predicted that deciduous teeth would be more developmentally stable and thus exhibit less dimensional FA than their permanent successor…
Ancient teeth, phenetic affinities, and African hominins
Dental crown size and sex hormone concentrations
Previous researchers hypothesized that tooth types forming during early childhood should be less sexually dimorphic than those forming during later childhood, if sex hormone concentration differences between males and females increase progressively throughout childhood and can affect tooth size. Descriptive tooth size data have recently been cited in support of this hypothesis, particularly with respect to differences in sexual dimorphism among t…
Linear enamel hypoplasia in the great apes
Most studies report a high prevalence of linear enamel hypoplasia (LEH) in the great apes relative to other nonhuman primates and some human populations. It is unclear if this difference is a direct result of poor health status for the great apes, or if it represents differential incidence due to a lower threshold (sensu Goodman and Rose, 1990 Am. J. Phys. Anthropol. [suppl.] 33:59-110) for the occurrence of enamel hypoplasia among great apes. Th…
Heritability and genetic integration of tooth size in the South Carolina Gullah
These results suggest that the high heritabilities previously published may reflect overestimates inherent in previous study designs; as such the standard estimate of 0.55 used in biodistance analyses may not be appropriate. For the Gullah, isolation and endogamy coupled with elevated levels of physiological and economic stress may suppress narrow-sense heritability estimates. Pleiotropy analyses suggest a more highly integrated dentition in huma…
Brief communication
Linear enamel hypoplasia (LEH) is an enamel defect that records the effects of physiological stress on tooth formation. Estimating the age at which LEH defects form is integral to the reconstruction of population health in bioarcheological studies. Two principal methods for aging LEH defects have been introduced in the literature. The conventional approach employs regression equations based on a linear model of tooth growth. The newer, Reid and D…
Neanderthal teeth from moula‐guercy, Ardèche, France
Here we describe dental remains from a Neanderthal fossil assemblage from Moula‐Guercy, France. Our report demonstrates that the Moula‐Guercy hominid remains contribute important morphological, developmental, and behavioral data to understanding Neanderthal evolutionary history. We include gross comparative morphological descriptions and enamel surface microstructure and microwear data. These teeth reveal numerous characteristics that are diagnos…
Developmental Stress and Survival among the Mid Upper Paleolithic Sunghir Children
The Sunghir 2 and 3 late juvenile to early adolescent immature skeletons, from the Mid Upper Paleolithic (Eastern Gravettian) of northern Russia, exhibit several episodes of dental enamel hypoplasias. Those of the older male Sunghir 2 relate principally to a stress episode in the third year post‐natal, although subsequent minor stress episodes may be indicated. They are not accompanied by other marked developmental abnormalities. The younger fema…
Heritability and genetic integration of anterior tooth crown variants in the South Carolina Gullah
OBJECTIVES: This article presents estimates of narrow-sense heritability and bivariate genetic correlation for a series of morphological crown variants of the anterior dentition. These results provide insight into the value of dental phenotypes as evolutionary proxies, as well as the development of tooth crowns as integrated or modular structures. MATERIALS AND METHODS: African American dental casts from the Menegaz-Bock collection were scored fo…
Perikymata distribution in Homo with special reference to the Xujiayao juvenile
The present study further clarifies variation of perikymata distribution patterns within the genus Homo. The perikymata distribution of the Xujiayao juvenile tends to be more similar to that of modern humans than to either early Homo or Neandertals
Preferential expression of linear enamel hypoplasia on the sectorial premolars of rhesus monkeys (Macaca mulatta)
Preferential expression of linear enamel hypoplasia on the sectorial premolars of rhesus monkeys (Macaca mulatta)
Three hundred and sixty rhesus macaque specimens at the Caribbean Primate Research Center were examined for evidence of linear enamel hypoplasia (LEH). A previously unreported intertooth pattern in LEH was observed. Defects occur preferentially on the sectorial premolar of both males and females. Relative to other teeth, the sectorial premolar exhibits more prominent defects and is more likely to exhibit multiple defects. This pattern is unlike t…
Interpreting sex differences in enamel hypoplasia in human and non-human primates
The purpose of this review is to provide a synoptic, critical evaluation of the evidence of, and potential etiological factors contributing to, sex differences in the expression of enamel hypoplasia (EH). Specifically, this review considers theoretical expectations and empirical evidence bearing on two central issues. The first of these is the impact of a theorized inherent male vulnerability to physiological stress on sex differences in EH. The …
Linear enamel hypoplasia in gibbons (Hylobates lar carpenteri)
This study describes the expression of linear enamel hypoplasia (LEH), a sensitive dental indicator of physiological stress, in Thailand gibbons (Hylobates lar carpenteri). Previous studies of enamel hypoplasia in hominoids have focused on great apes, with little attention given to the expression of this stress indicator in gibbons. In that gibbons differ from both monkeys and great apes in numerous life history features, LEH expression in gibbon…
Linear enamel hypoplasia in gibbons (Hylobates lar carpenteri)
Canary islands-north African population affinities
What can developmental defects of enamel reveal about physiological stress in nonhuman primates
Macroscopic and microscopic analyses of linear enamel hypoplasia in Plio‐Pleistocene South African hominins with respect to aspects of enamel development and morphology
This study uses macroscopic and microscopic methods to analyze the expression of linear enamel hypoplasia (LEH) in Plio‐Pleistocene South African hominins. LEH is a developmental defect of enamel that is used in many anthropological contexts as a physiological stress indicator. Previous research has not settled the question as to whether differences in LEH expression exist between Paranthropus and Australopithecus and if they exist, to what exten…
Primate Dentition
Ancient teeth and modern human origins
Analysis and significance of linear enamel hypoplasia in Plio‐Pleistocene hominins
This study of linear enamel hypoplasia (LEH) in Plio‐Pleistocene hominins builds on a previous study (Guatelli‐Steinberg [ 2003 ] Am. J. Phys. Anthropol. 120: 309–322) that focused on LEH in early South African hominins. The present study is more comprehensive, encompassing dental specimens of hominins from East Africa as well, including early Homo . As a developmental defect of enamel, LEH is used in anthropological contexts to reveal informatio…
Prevalence and the duration of linear enamel hypoplasia
Anterior tooth growth periods in Neandertals were comparable to those of modern humans
A longstanding controversy in paleoanthropology surrounds the question of whether Neandertals shared the prolonged growth periods of modern humans. To address this question, this investigation compares the duration of enamel formation in Neandertals with that of three comparative modern human groups. Because dental and somatic growth are correlated with each other, dental growth periods are indicative of overall periods of growth. Growth incremen…
Linear enamel hypoplasia in the great apes
Most studies report a high prevalence of linear enamel hypoplasia (LEH) in the great apes relative to other nonhuman primates and some human populations. It is unclear if this difference is a direct result of poor health status for the great apes, or if it represents differential incidence due to a lower threshold (sensu Goodman and Rose, 1990 Am. J. Phys. Anthropol. [suppl.] 33:59-110) for the occurrence of enamel hypoplasia among great apes. Th…
Brief communication
This report documents greater variability in early hominin first molar dental trait frequencies than previous research indicated. Specifically, frequencies of several M1 dental traits that previously appeared to uniquely characterize Paranthropus are shown here to resemble those of the A. afarensis sample from Hadar. Like Paranthropus, A. afarensis from Hadar has a high frequency of cusp 6 and a low frequency of the protostylid. Paranthropus and …
Isotopic Evidence for Dietary Variability in the Early Hominin Paranthropus robustus
Traditional methods of dietary reconstruction do not allow the investigation of dietary variability within the lifetimes of individual hominins. However, laser ablation stable isotope analysis reveals that the δ 13 C values of Paranthropus robustus individuals often changed seasonally and interannually. These data suggest that Paranthropus was not a dietary specialist and that by about 1.8 million years ago, savanna-based foods such as grasses or…
Dental fluctuating asymmetry in the Gullah
In this investigation, deciduous teeth (canines, c; first molars, m1; second molars, m2) and their permanent successors (canines, C; first premolars, P1; second premolars, P2) were used to test two related hypotheses about fluctuating asymmetry (FA). First, based on the biology of the developing dentition, it was predicted that deciduous teeth would be more developmentally stable and thus exhibit less dimensional FA than their permanent successor…
Brief Communication
This study investigates changes in the prevalence of linear enamel hypoplasia (LEH) before and after the shift from irregular to regular provisioning in the Cayo Santiago rhesus monkey population. Prior to 1956, monkeys on this island colony did not receive consistent provisions, and were reported to be in poor health (Rawlins and Kessler 1986 The Cayo Santiago Macaques; Albany: State University of New York Press). A regular provisioning program,…
Life history, enamel formation, and linear enamel hypoplasia in the Ceboidea
Linear enamel hypoplasia (LEH), a developmental defect of enamel, increases in frequency from prosimian to monkey to lesser ape to great ape grades (Guatelli-Steinberg 2000 Am. J. Phys. Anthropol. 112:395-410, [2001] Evol. Anthropol. 10:138-151; Newell 1998 Ph.D. dissertation, Temple University). This taxonomic pattern in the distribution of LEH is closely related to maturation length across the primate order (Newell 1998 Ph.D. dissertation, Temp…
Imbricational enamel formation in Neandertals and recent modern humans
Not so fast
Did the lateral enamel of Neandertal anterior teeth grow differently from that of modern humans
Brief communication
Linear enamel hypoplasia (LEH) is an enamel defect that records the effects of physiological stress on tooth formation. Estimating the age at which LEH defects form is integral to the reconstruction of population health in bioarcheological studies. Two principal methods for aging LEH defects have been introduced in the literature. The conventional approach employs regression equations based on a linear model of tooth growth. The newer, Reid and D…
Dental crown size and sex hormone concentrations
Previous researchers hypothesized that tooth types forming during early childhood should be less sexually dimorphic than those forming during later childhood, if sex hormone concentration differences between males and females increase progressively throughout childhood and can affect tooth size. Descriptive tooth size data have recently been cited in support of this hypothesis, particularly with respect to differences in sexual dimorphism among t…
Variation in modern human premolar enamel formation times
Biology (63 works) · Forensic Anthropology and Bioarchaeology Studies (52 works) · Dentistry (44 works) · Medicine (44 works) · Enamel paint (42 works) · Pleistocene-Era Hominins and Archaeology (31 works) · Evolutionary biology (28 works) · Bone and Dental Protein Studies (25 works) · Enamel hypoplasia (24 works) · Paleontology (23 works)