Herbert H Covert

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The first omomyine petrosals, those of Omomys carteri, are described. Omomys probably had a tympanic bulla and canals for the intratympanic carotid circulation derived from the petrosal bone. The stapedial and promontory canals were complete, large and subequal. The posterior carotid foramen entered the bulla posteromedially. The intratympanic portion of(More)
Recent studies at the Endangered Primate Rescue Center (EPRC) in the Socialist Republic of Vietnam's Cuc Phuong National Park by Byron et al. ([2002] Am. J. Phys. Anthropol. [Suppl.] 34:51) and Covert and Byron ([2002] Caring for Primates) revealed unexpected locomotor and postural behaviors in the red-shanked douc langur (Pygathrix nemaeus). This paper(More)
New associated craniodental and postcranial remains of Omomys carteri from Bridger C beds in Uinta County, Wyoming represent the largest and most nearly complete single taxon sample of omomyid postcranial fossils presently known. They allow, for the first time, a description and detailed analysis of the functional morphology of the hindlimb of this middle(More)
The kinematics of colobine locomotion, particularly the folivorous primates of Vietnam, has to date received little attention. Recent work at the Endangered Primate Rescue Center (EPRC) in Cuc Phuong National Park is the first to examine kinematics during arboreal quadrupedal locomotion in these endangered leaf monkeys, revealing marked differences in tail(More)
We report new body mass estimates for the North American Eocene primate Omomys carteri. These estimates are based on postcranial measurements and a variety of analytical methods, including bivariate regression, multiple regression, and principal components analysis (PCA). All body mass estimation equations show high coefficients of determination (R2), and(More)
An analysis of the relationship between oral pathology and degenerative change at the temporomandibular joint (TMJ) was undertaken on an archaeological sample of 122 adult crania from the Medieval site of Kulubnarti in Sudanese Nubia. The crania were sorted into 2 groups: those demonstrating clearly visible bony changes at the joint (TMJ+) and those without(More)
In our study at the Endangered Primate Rescue Center of Cuc Phuong National Park, Vietnam, we aimed first to assemble a positional behavioral profile of captive gray-shanked (Pygathrix cinerea) and red-shanked (P. nemaeus) doucs that relates to the use of forelimb suspensory postures and arm-swinging locomotion. The profile is of interest because(More)
The Tonkin snub-nosed monkey (Rhinopithecus avunculus) with a global population of <250 is listed as critically endangered. It is endemic to northeastern Vietnam and was feared extinct until its rediscovery in 1989. The largest single population of R. avunculus consists of 125–130 individuals in an area of forest called Khau Ca in Ha Giang Province. We used(More)
The black-crowned Central American squirrel monkey (Saimiri oerstedii oerstedii) has never been abundant, having been geographically restricted by its preferred habitat of low altitude secondary forest in Costa Rica and Panama. But heavy deforestation in the 20th century had a devastating effect on the population: the most recent survey, completed in 1996,(More)
Grief is one of the most fundamental human emotions and one of the least studied. One of the ways we discover more about humanity is by studying the rest of our order: the primates. Studying grief in other primates can help us understand our own grief better, and thus help those suffering from it. This thesis compiles accounts of primate grief (death of an(More)
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