Justin Gladman

Journal article Science advances · January 2025 Through selective breeding, humans have driven exceptional morphological diversity in domestic dogs, creating more than 200 recognized breeds developed for specialized functional tasks such as herding, protection, and hunting. Here, we use three-dimensiona ... Full text Cite

A New Humerus of Homunculus patagonicus, a Stem Platyrrhine from the Santa Cruz Formation (Late Early Miocene), Santa Cruz Province, Argentina

Journal article Ameghiniana · January 1, 2022 We describe a well-preserved humerus of Homunculus patagonicus, a stem platyrrhine from the late early Miocene of the Santa Cruz Formation, Santa Cruz Province, Argentina. The distal part of a humerus was collected by Carlos Ameghino and figured in the 19< ... Full text Open Access Cite

The art of imaging methods—using cutting edge radiological technology to uncover the secrets of ancient anatomical figurines

Journal article Archaeological and Anthropological Sciences · May 1, 2021 Ivory anatomical figurines are thought to have been carved in Germany in the seventeenth or eighteenth century. While it is speculated that these figurines were used for the study of medical education, little is known about their origins. A precise underst ... Full text Cite

Getting Its Feet on the Ground: Elucidating Paralouatta’s Semi-Terrestriality Using the Virtual Morpho-Functional Toolbox

Journal article Frontiers in Earth Science · March 25, 2020 Full text Cite

Reverse Dissection and DiceCT Reveal Otherwise Hidden Data in the Evolution of the Primate Face.

Journal article Journal of visualized experiments : JoVE · January 2019 Facial expressions, or facial displays, of social or emotional intent are produced by many mammalian taxa as a means of visually communicating with conspecifics at a close range. These displays are achieved by contraction of the mimetic muscles, which are ... Full text Cite

A digital collection of rare and endangered lemurs and other primates from the Duke Lemur Center.

Journal article PloS one · January 2019 Scientific study of lemurs, a group of primates found only on Madagascar, is crucial for understanding primate evolution. Unfortunately, lemurs are among the most endangered animals in the world, so there is a strong impetus to maximize as much scientific ... Full text Open Access Cite

Inferring locomotor behaviours in Miocene New World monkeys using finite element analysis, geometric morphometrics and machine-learning classification techniques applied to talar morphology.

Journal article Journal of the Royal Society, Interface · September 2018 The talus is one of the most commonly preserved post-cranial elements in the platyrrhine fossil record. Talar morphology can provide information about postural adaptations because it is the anatomical structure responsible for transmitting body mass forces ... Full text Cite

Adaptive wear-based changes in dental topography associated with atelid (Mammalia: Primates) diets

Journal article Biological Journal of the Linnean Society · August 1, 2018 Primates are generally characterized by low-crowned, brachydont molars relative to many other groups of mammals. This conservative architecture may create special challenges for maintaining dental functionality in the case of a diet requiring proficient sh ... Full text Open Access Cite

Transparent anemone shrimp (Ancylomenes pedersoni) become opaque after exercise and physiological stress in correlation with increased hemolymph perfusion.

Journal article The Journal of experimental biology · November 2017 Whole-body transparency, an effective camouflage strategy in many aquatic species, can be disrupted by environmental and/or physiological stressors. We found that tail-flip escape responses temporarily disrupt the transparency of the anemone shrimp Ancy ... Full text Cite

The evolution of the platyrrhine talus: A comparative analysis of the phenetic affinities of the Miocene platyrrhines with their modern relatives.

Journal article Journal of human evolution · October 2017 Platyrrhines are a diverse group of primates that presently occupy a broad range of tropical-equatorial environments in the Americas. However, most of the fossil platyrrhine species of the early Miocene have been found at middle and high latitudes. Althoug ... Full text Cite

Predicting euarchontan body mass: A comparison of tarsal and dental variables.

Journal article American journal of physical anthropology · July 2015 ObjectiveMultiple meaningful ecological characterizations of a species revolve around body mass. Because body mass cannot be directly measured in extinct taxa, reliable body mass predictors are needed. Many published body mass prediction equations ... Full text Open Access Cite

A new fully automated approach for aligning and comparing shapes.

Journal article Anatomical record (Hoboken, N.J. : 2007) · January 2015 Three-dimensional geometric morphometric (3DGM) methods for placing landmarks on digitized bones have become increasingly sophisticated in the last 20 years, including greater degrees of automation. One aspect shared by all 3DGM methods is that the researc ... Full text Open Access Cite

Out of Asia: An Allopatric Model for the Evolution of the Domestic Dog

Journal article ISRN Zoology · October 8, 2013 The domestication of the dog has been a ripe area of evolutionary speculation for more than 150 years. A wolf ancestry and probable East Asian origin of domestication are now widely accepted. We offer a new allopatric hypothesis for the domesticati ... Full text Cite

A calcaneus attributable to the primitive late Eocene anthropoid Proteopithecus sylviae: phenetic affinities and phylogenetic implications.

Journal article American journal of physical anthropology · July 2013 A well-preserved calcaneus referrable to Proteopithecus sylviae from the late Eocene Quarry L-41 in the Fayum Depression, Egypt, provides new evidence relevant to this taxon's uncertain phylogenetic position. We assess morphological affinities of the new s ... Full text Cite

Evolution and allometry of calcaneal elongation in living and extinct primates.

Journal article PloS one · January 2013 Specialized acrobatic leaping has been recognized as a key adaptive trait tied to the origin and subsequent radiation of euprimates based on its observed frequency in extant primates and inferred frequency in extinct early euprimates. Hypothesized skeletal ... Full text Cite