Browsing by Author "Smith, Tanya"

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    • Barium distributions in teeth reveal early life dietary transitions in primates 

      Austin, Christine; Smith, Tanya M.; Bradman, Asa; Hinde, Katie; Joannes-Boyau, Renaud; Bishop, David; Hare, Dominic J.; Doble, Philip; Eskenazi, Brenda; Arora, Manish (2013)
      Early life dietary transitions reflect fundamental aspects of primate evolution and are important determinants of health in contemporary human populations1,2. Weaning is critical to developmental and reproductive rates; ...

    • Brief communication: Contributions of enamel-dentine junction shape and enamel deposition to primate molar crown complexity 

      Skinner, Matthew M.; Evans, Alistair; Smith, Tanya; Jernvall, Jukka; Tafforeau, Paul; Kupczik, Kornelius; Olejniczak, Anthony J.; Rosas, Antonio; Radovčić, Jakov; Thackeray, J. Francis; Toussaint, Michel; Hublin, Jean-Jacques (Wiley-Blackwell, 2010)
      Molar crown morphology varies among primates from relatively simple in some taxa to more complex in others, with such variability having both functional and taxonomic significance. In addition to the primary cusps, crown ...

    • Brief communication: Dental development and enamel thickness in the Lakonis Neanderthal molar 

      Smith, Tanya; Harvati, K.; Olejniczak, A.J.; Reid, D.J.; Hublin, J.-J.; Panagopoulou, E. (Wiley-Blackwell, 2009)
      Developmental and structural affinities between modern human and Neanderthal dental remains continue to be a subject of debate as well as their utility for informing assessments of life history and taxonomy. Excavation of ...

    • Chronology of Linear Enamel Hypoplasia Formation in the Krapina Neanderthals 

      Guatelli-Steinberg, Debbie; Stinespring-Harris, Ashley; Reid, Donald J.; Larsen, Clark Spencer; Hutchinson, Dale L.; Smith, Tanya (PaleoAnthropology Society, 2014)
      During childhood, systemic physiological stresses such as illness, disease, and malnutrition can disrupt the growth of dental enamel. These disruptions are often recorded in the form of linear enamel hypoplasia (LEH). Many ...

    • Contextes et âge des nouveaux restes dentaires humains du Pléistocène moyen de la carrière Thomas I a Casablanca (Maroc) 

      Raynal, J. P.; Sbihi-Alaoui, F. Z.; Mohib, A.; El Graoui, M.; Lefèvre, D.; Texier, J. P.; Geraads, D.; Hublin, J. J.; Smith, Tanya; Tafforeau, P.; Zouak, M.; Grün, R.; Rhodes, E. J.; Eggins, S.; Daujeard, C.; Fernandes, P.; Gallotti, R.; Hossini, S.; Schwarcz, H. P.; Queffelec, A. (Persee Scientific Journals, 2011)
      Un outillage lithique acheuléen, une riche faune du Pléistocène moyenet quatre dents d’hominidés ont été extraites du remplissage de la cavité dela carrière Thomas I, célèbre depuis la découverte en 1969 d’une hémi-mandibule ...

    • Dental development of the Taï Forest chimpanzees revisited 

      Smith, Tanya; Smith, B.H.; Reid, D.J.; Siedel, H.; Vigilant, L.; Hublin, J.J.; Boesch, C. (Elsevier BV, 2010)
      Developmental studies consistently suggest that teeth are more buffered from the environment than other skeletal elements. The surprising finding of late tooth eruption in wild chimpanzees (Zihlman et al., 2004) warrants ...

    • Dental evidence for ontogenetic differences between modern humans and Neanderthals 

      Smith, Tanya; Tafforeau, P.; Reid, D. J.; Pouech, J.; Lazzari, V.; Zermeno, J. P.; Guatelli-Steinberg, D.; Olejniczak, A. J.; Hoffman, A.; Radovcic, J.; Makaremi, M.; Toussaint, M.; Stringer, C.; Hublin, J.-J. (Proceedings of the National Academy of Sciences, 2010)
      Humans have an unusual life history, with an early weaning age, long childhood, late first reproduction, short interbirth intervals, and long lifespan. In contrast, great apes wean later, reproduce earlier, and have longer ...

    • Dental Evidence from the Aterian Human Populations of Morocco 

      Hublin, Jean-Jacques; Verna, Christine; Bailey, Shara; Smith, Tanya; Olejniczak, Anthony; Sbihi-Alaoui, Fatima Z.; Zouak, Mehdi (Springer-Verlag, 2012)
      The Aterian fossil hominins represent one of the most abundant series of human remains associated with Middle Stone Age/Middle Paleolithic assemblages in Africa. Their dates have been revised and they are now mostly assigned ...

    • Dental Ontogeny in Pliocene and Early Pleistocene Hominins 

      Smith, Tanya M.; Tafforeau, Paul; Le Cabec, Adeline; Bonnin, Anne; Houssaye, Alexandra; Pouech, Joane; Moggi-Cecchi, Jacopo; Manthi, Fredrick; Ward, Carol; Makaremi, Masrour; Menter, Colin G. (Public Library of Science, 2015)
      Until recently, our understanding of the evolution of human growth and development derived from studies of fossil juveniles that employed extant populations for both age determination and comparison. This circular approach ...

    • Dental tissue proportions in fossil orangutans from mainland Asia and Indonesia 

      Smith, Tanya; Bacon, Anne-Marie; Demeter, Fabrice; Kullmer, Ottmar; Nguyen, Kim Thuy; de Vos, John; Wei, Wang; Zermeno, John P.; Zhao, Lingxia (Asian-Australian Association of Paleoanthopologists, 2011)
      Orangutans (Pongo) are the only great ape genus with a substantial Pleistocene and Holocene fossil record, demonstrating a much larger geographic range than extant populations. In addition to having an extensive fossil ...

    • Developmental variation of the primate dentition: The 2011 AAPA symposium in honor of Don Reid 

      Smith, Tanya; Guatelli-Steinberg, Debbie (Wiley-Blackwell, 2011)

    • Enamel thickness in Asian human canines and premolars 

      FEENEY, ROBIN N.M.; ZERMENO, JOHN P.; REID, DONALD J.; NAKASHIMA, SYOZI; SANO, HIROSHI; BAHAR, ARMASASTRA; HUBLIN, JEAN-JACQUES; Smith, Tanya (Anthropological Society of Nippon, 2010)
      Dental enamel thickness continues to feature prominently in anthropological studies of ape and human evolution, as well as studies of preventative oral care and treatment. Traditional studies of enamel thickness require ...

    • Enamel Thickness in Bornean and Sumatran Orangutan Dentitions 

      Smith, Tanya; Kupczik, Kornelius; Machanda, Zarin Pearl; Skinner, Matthew M.; Zermeno, John P. (Wiley, 2012)
      Dental enamel thickness has received considerable attention in ecological models of the adaptive significance of primate morphology. Several authors have theorized that the degree of enamel thickness may reflect selective ...

    • The Evolution of Third Molar Agenesis and Impaction 

      Carter, Katherine (2016-05-19)
      Up to 70% of modern humans experience problems with their third molars, whether it is failure of proper eruption (impaction) or not erupting at all (agenesis). Thus, it is a commonly used example for explaining why humans ...

    • Extraction and sequencing of human and Neanderthal mature enamel proteins using MALDI-TOF/TOF MS 

      Nielsen-Marsh, Christina M.; Stegemann, Christin; Hoffmann, Ralf; Smith, Tanya; Feeney, Robin; Toussaint, Michel; Harvati, Katerina; Panagopoulou, Eleni; Hublin, Jean-Jacques; Richards, Michael P. (Elsevier BV, 2009)
      We report here the first results of a method to extract and sequence mature enamel proteins from modern human and Neanderthal tooth enamel. Using MALDI-TOF/TOF mass spectrometry and a combination of direct sequencing and ...

    • First Molar Eruption, Weaning, and Life History in Living Wild Chimpanzees 

      Smith, Tanya; Machanda, Zarin Pearl; Bernard, Andrew B.; Donovan, Ronan M.; Papakyrikos, Amanda M.; Muller, Martin N.; Wrangham, Richard W. (Proceedings of the National Academy of Sciences, 2013)
      Understanding dental development in chimpanzees, our closest living relatives, is of fundamental importance for reconstructing the evolution of human development. Most early hominin species are believed to show rapid ...

    • Hominid Cave at Thomas Quarry I (Casablanca, Morocco): Recent findings and their context 

      Raynal, Jean-Paul; Sbihi-Alaoui, Fatima-Zohra; Mohib, Abderrahim; El Graoui, Mosshine; Lefèvre, David; Texier, Jean-Pierre; Geraads, Denis; Hublin, Jean-Jacques; Smith, Tanya; Tafforeau, Paul; Zouak, Mehdi; Grün, Rainer; Rhodes, Edward J.; Eggins, Stephen; Daujeard, Camille; Fernandes, Paul; Gallotti, Rosalia; Hossini, Saïda; Queffelec, Alain (Elsevier BV, 2010)
      The Thomas Quarry I locality was made famous in 1969 with the discovery of a human half-mandible in a cave. In 1985, further investigations revealed the presence of a Lower Acheulean assemblage in lower units of the section. ...

    • Incremental Dental Development: Methods and Applications in Hominoid Evolutionary Studies 

      Smith, Tanya (Elsevier, 2008)
      This survey of dental microstructure studies reviews recent methods used to quantify developmental variables (daily secretion rate, periodicity of long-period lines, extension rate, formation time) and applications to the ...

    • Intra- and interspecific variation in macaque molar enamel thickness 

      Kato, Akiko; Tang, Nancy Karen; Borries, Carola; Papakyrikos, Amanda; Hinde, Katie; Miller, Ellen; Kunimatsu, Yutaka; Hirasaki, Eishi; Shimizu, Daisuke; Smith, Tanya (Wiley-Blackwell, 2014)
      Enamel thickness has played an important role in studies of primate taxonomy, phylogeny, and functional morphology, although its variation among hominins is poorly understood. Macaques parallel hominins in their widespread ...

    • News and views: Non-metric dental traits and hominin phylogeny 

      Carter, Katherine Elizabeth; Worthington, Steven; Smith, Tanya (Elsevier BV, 2014)
      Analyses of hominin dental remains conventionally include measurements of tooth crown sizes and descriptions of occlusal morphology such as minor accessory cusps, fissure patterns, and ridges (e.g., Wood, 1981, Aiello and ...