Timothy D Smith
Biographic Data
| ID | 3741184 |
|---|---|
| NAME | Timothy D Smith |
| GIVEN NAMES | Timothy D |
| FAMILY NAME | Smith |
| SIGNATURE | SMITH T D |
| AFFILIATIONS | School of Physical Therapy, Slippery Rock University Slippery Rock PA |
| ORCID | 0000-0002-9697-2095 |
| VERIFIED | Yes |
| TOTAL WORKS | 8 |
| TOTAL CITATIONS | 16 |
| AUTHOR COUNT | 8 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1997 |
| LATEST PUBLICATION YEAR | 2018 |
| H-INDEX | 3 |
Nasolacrimal anatomy and haplorhine origins
Mapping bone cell distributions to assess ontogenetic origin of primate midfacial form
Midfacial reduction in primates has been explained as a byproduct of other growth patterns, especially the convergent orbits. This is at once an evolutionary and developmental explanation for relatively short snouts in most modern primates. Here, we use histological sections of perinatal nonhuman primates (tamarin, tarsier, loris) to investigate how orbital morphology emerges during ontogeny in selected primates compared to another euarchontan ( …
Comparative histomorphology of intrinsic vibrissa musculature among primates: Implications for the evolution of sensory ecology and “face touch”
Macrovibrissae are specialized tactile sensory hairs present in most mammalian orders, used in maxillary mechanoreception or “face touch.” Some mammals have highly organized vibrissae and are able to “whisk” them. Movement of vibrissae is influenced by intrinsic vibrissa musculature, striated muscle bands that attach directly to the vibrissa capsule. It is unclear if primates have organized vibrissae or intrinsic vibrissa musculature and it is un…
Comparative microcomputed tomography and histological study of maxillary pneumatization in four species of new world monkeys: The perinatal period
In anthropoid primates, it has been hypothesized that the magnitude of maxillary sinus growth is influenced by adjacent dental and soft tissue matrices. Relatively, little comparative evidence exists for the perinatal period when secondary pneumatization is at its earliest stages in some primates. Here, dental and midfacial variables were studied in a perinatal sample of four anthropoid primates, including three callitrichines ( Leontopithecus , …
Evolution of the nose and nasal skeleton in primates
One traditional diagnostic feature of the Order Primates is a decreased emphasis on olfaction.1, 2 Some authors attribute this feature only to tarsiers and anthropoids, either through convergence or as a common feature of haplorhines.2-4 Other authors de-emphasize olfaction relative to vision,5-7 which does not necessarily denote olfactory reduction per se. There are lengthy roots to this discussion. The importance of the sense of smell to at lea…
Three-dimensional analysis of mandibular morphology inOtolemur
Euclidean distance matrix analysis (EDMA) of three-dimensional data is used here to examine mandibular morphology between two species of galagos. Otolemur crassicaudatus consumes primarily exudates, while O. garnettii is more frugivorous. Acquisition of exudates involves either gouging or scraping tree bark, and may involve different forces at the mandible than incising fruits. Previous studies of mandibular morphology in exudate-feeding primates…
Ontogenetic characteristics of the vomeronasal organ in Saguinus geoffroyi and Leontopithecus rosalia , with comparisons to other primates
It has been suggested that the variability of the primate vomeronasal organ (VNO) may be greater than previously thought, especially among New World monkeys. It is not clear to what extent VNO variation reflects ontogenetic, functional, or phylogenetic differences among primates. The present study investigated VNO anatomy in an ontogenetic series of two genera of callitrichid primates, in order to assess recent attempts to develop VNO character s…
“Month of birth effect” does not alter longitudinal growth in an experimental animal model
Previous cross-sectional human and animal data collected in the southern hemisphere suggest that month of birth influences growth throughout life; individuals born between August and January (spring/summer) were larger than individuals born between February and July (fall/winter) throughout their life cycle. It has been suggested that there is some form of annual global variation which may be caused by extraterrestrial factors. The present study,…
Nasolacrimal anatomy and haplorhine origins
Three-dimensional analysis of mandibular morphology inOtolemur
Euclidean distance matrix analysis (EDMA) of three-dimensional data is used here to examine mandibular morphology between two species of galagos. Otolemur crassicaudatus consumes primarily exudates, while O. garnettii is more frugivorous. Acquisition of exudates involves either gouging or scraping tree bark, and may involve different forces at the mandible than incising fruits. Previous studies of mandibular morphology in exudate-feeding primates…
Comparative microcomputed tomography and histological study of maxillary pneumatization in four species of new world monkeys: The perinatal period
In anthropoid primates, it has been hypothesized that the magnitude of maxillary sinus growth is influenced by adjacent dental and soft tissue matrices. Relatively, little comparative evidence exists for the perinatal period when secondary pneumatization is at its earliest stages in some primates. Here, dental and midfacial variables were studied in a perinatal sample of four anthropoid primates, including three callitrichines ( Leontopithecus , …
Ontogenetic characteristics of the vomeronasal organ in Saguinus geoffroyi and Leontopithecus rosalia , with comparisons to other primates
It has been suggested that the variability of the primate vomeronasal organ (VNO) may be greater than previously thought, especially among New World monkeys. It is not clear to what extent VNO variation reflects ontogenetic, functional, or phylogenetic differences among primates. The present study investigated VNO anatomy in an ontogenetic series of two genera of callitrichid primates, in order to assess recent attempts to develop VNO character s…
Comparative histomorphology of intrinsic vibrissa musculature among primates: Implications for the evolution of sensory ecology and “face touch”
Macrovibrissae are specialized tactile sensory hairs present in most mammalian orders, used in maxillary mechanoreception or “face touch.” Some mammals have highly organized vibrissae and are able to “whisk” them. Movement of vibrissae is influenced by intrinsic vibrissa musculature, striated muscle bands that attach directly to the vibrissa capsule. It is unclear if primates have organized vibrissae or intrinsic vibrissa musculature and it is un…
“Month of birth effect” does not alter longitudinal growth in an experimental animal model
Previous cross-sectional human and animal data collected in the southern hemisphere suggest that month of birth influences growth throughout life; individuals born between August and January (spring/summer) were larger than individuals born between February and July (fall/winter) throughout their life cycle. It has been suggested that there is some form of annual global variation which may be caused by extraterrestrial factors. The present study,…
Ontogenetic characteristics of the vomeronasal organ in Saguinus geoffroyi and Leontopithecus rosalia , with comparisons to other primates
It has been suggested that the variability of the primate vomeronasal organ (VNO) may be greater than previously thought, especially among New World monkeys. It is not clear to what extent VNO variation reflects ontogenetic, functional, or phylogenetic differences among primates. The present study investigated VNO anatomy in an ontogenetic series of two genera of callitrichid primates, in order to assess recent attempts to develop VNO character s…
Three-dimensional analysis of mandibular morphology inOtolemur
Euclidean distance matrix analysis (EDMA) of three-dimensional data is used here to examine mandibular morphology between two species of galagos. Otolemur crassicaudatus consumes primarily exudates, while O. garnettii is more frugivorous. Acquisition of exudates involves either gouging or scraping tree bark, and may involve different forces at the mandible than incising fruits. Previous studies of mandibular morphology in exudate-feeding primates…
Evolution of the nose and nasal skeleton in primates
One traditional diagnostic feature of the Order Primates is a decreased emphasis on olfaction.1, 2 Some authors attribute this feature only to tarsiers and anthropoids, either through convergence or as a common feature of haplorhines.2-4 Other authors de-emphasize olfaction relative to vision,5-7 which does not necessarily denote olfactory reduction per se. There are lengthy roots to this discussion. The importance of the sense of smell to at lea…
Comparative microcomputed tomography and histological study of maxillary pneumatization in four species of new world monkeys: The perinatal period
In anthropoid primates, it has been hypothesized that the magnitude of maxillary sinus growth is influenced by adjacent dental and soft tissue matrices. Relatively, little comparative evidence exists for the perinatal period when secondary pneumatization is at its earliest stages in some primates. Here, dental and midfacial variables were studied in a perinatal sample of four anthropoid primates, including three callitrichines ( Leontopithecus , …
Comparative histomorphology of intrinsic vibrissa musculature among primates: Implications for the evolution of sensory ecology and “face touch”
Macrovibrissae are specialized tactile sensory hairs present in most mammalian orders, used in maxillary mechanoreception or “face touch.” Some mammals have highly organized vibrissae and are able to “whisk” them. Movement of vibrissae is influenced by intrinsic vibrissa musculature, striated muscle bands that attach directly to the vibrissa capsule. It is unclear if primates have organized vibrissae or intrinsic vibrissa musculature and it is un…
Mapping bone cell distributions to assess ontogenetic origin of primate midfacial form
Midfacial reduction in primates has been explained as a byproduct of other growth patterns, especially the convergent orbits. This is at once an evolutionary and developmental explanation for relatively short snouts in most modern primates. Here, we use histological sections of perinatal nonhuman primates (tamarin, tarsier, loris) to investigate how orbital morphology emerges during ontogeny in selected primates compared to another euarchontan ( …
Nasolacrimal anatomy and haplorhine origins
Biology (8 works) · Anatomy (6 works) · Anatomy (6 works) · Primate (6 works) · Ecology (4 works) · Olfactory and Sensory Function Studies (4 works) · Primate Behavior and Ecology (4 works) · Zoology (4 works) · Ecology (3 works) · Neuroscience (3 works)