Linear enamel hypoplasia in Homo naledi reappraised in light of new Retzius periodicities

MF Skinner, LK Delezene, MM Skinner… - American journal of …, 2024 - Wiley Online Library
Objectives Among low‐latitude apes, developmental defects of enamel often recur twice
yearly, linkable to environmental cycles. Surprisingly, teeth of Homo naledi from Rising Star …

3D enamel profilometry reveals faster growth but similar stress severity in Neanderthal versus Homo sapiens teeth

K McGrath, LS Limmer, AL Lockey… - Scientific Reports, 2021 - nature.com
Early life stress disrupts growth and creates horizontal grooves on the tooth surface in
humans and other mammals, yet there is no consensus for their quantitative analysis. Linear …

Insights on patterns of developmental disturbances from the analysis of linear enamel hypoplasia in a Neolithic sample from Liguria (northwestern Italy)

E Orellana-González, VS Sparacello, E Bocaege… - International Journal of …, 2020 - Elsevier
Objective To assess developmental disturbances through the analysis of linear enamel
hypoplasia (LEH) frequency and to infer environmental stress and life history within Neolithic …

Wild boar versus domestic pig—Deciphering of crown growth in porcine second molars

S Emken, C Witzel, U Kierdorf, K Frölich… - Journal of …, 2023 - Wiley Online Library
Based on the previously established periodicity of enamel growth marks, we reconstructed
crown growth parameters of mandibular second molars from two wild boar and two domestic …

Differences in childhood stress between Neanderthals and early modern humans as reflected by dental enamel growth disruptions

LS Limmer, M Santon, K McGrath, K Harvati… - Scientific Reports, 2024 - nature.com
Neanderthals' lives were historically portrayed as highly stressful, shaped by constant
pressures to survive in harsh ecological conditions, thus potentially contributing to their …

[HTML][HTML] Retzius periodicity in the Late Miocene hominoid Lufengpithecus lufengensis from Southwest China: Implications for dental development and life history

R Hu, B Du, L Zhao - Journal of Human Evolution, 2023 - Elsevier
In enamel, there are short-period and long-period lines known as daily cross-striations and
Retzius lines, respectively (Retzius, 1837; Gysi, 1931; Boyde, 1964, 1989; Risnes, 1985 …

Meaningful measures of enamel hypoplasia: Prevalence and comparative intensity of developmental stress

MF Skinner - American Journal of Biological Anthropology, 2023 - Wiley Online Library
Objectives Developmental stress causing enamel thinning is an important topic in primate
biology. Because taxa differ in growth rates and enamel thickness, the goal is to provide a …

Potential of Japanese Macaques for Understanding Etiology and Seasonality of Repetitive Linear Enamel Hypoplasia in Nonhuman Primates

MF Skinner, M Asami, MM Skinner… - American Journal of …, 2025 - Wiley Online Library
Japanese macaques are ideal to advance understanding of a wide‐spread pattern of
recurrent developmental distress in great apes, preserved as repetitive linear enamel …

Cold Discomfort: A Model to Explain Repetitive Linear Enamel Hypoplasia Among Pan troglodytes and Pan paniscus

MF Skinner - International Journal of Primatology, 2021 - Springer
A geographically and temporally widespread pattern of repetitive episodes of developmental
stress, recorded as furrows of linear enamel hypoplasia (LEH) in most recent and fossil …

Some orangutans acquire enamel defects at regular intervals, but not according to seasonal cycles

MC O'Hara, WS McGraw… - American Journal of …, 2023 - Wiley Online Library
Objectives Developmental defects of tooth enamel are associated with systemic
physiological stress and have been linked to seasonal environmental factors such as …