A5060456457- Evolution and Paleontology Studies
- Primate Behavior and Ecology
- Bat Biology and Ecology Studies
- Pleistocene-Era Hominins and Archaeology
- Animal Vocal Communication and Behavior
- Wildlife Ecology and Conservation
- Marine animal studies overview
- Paleontology and Evolutionary Biology
- Forensic Anthropology and Bioarchaeology Studies
- Geology and Paleoclimatology Research
- Amphibian and Reptile Biology
- Aquatic Ecosystems and Biodiversity
- Geomagnetism and Paleomagnetism Studies
- Human-Animal Interaction Studies
- Plant and animal studies
- Archaeology and ancient environmental studies
- Paleontology and Stratigraphy of Fossils
- Craniofacial Disorders and Treatments
- Quality and Safety in Healthcare
- Mining and Resource Management
- Fish biology, ecology, and behavior
- Winter Sports Injuries and Performance
- Geological formations and processes
- Genetic diversity and population structure
- Ichthyology and Marine Biology
Wake Forest University
2024
Stony Brook University
2019-2024
Western University of Health Sciences
2024
American College of Veterinary Ophthalmologists
2024
Pacific Northwest University of Health Sciences
2024
De Anza College
2009-2020
Harvard University
1992-1995
Rutgers New Jersey Medical School
1995
Johns Hopkins University
1995
Robert S. Peabody Museum of Archaeology
1995
The assembly of Africa's iconic C4 grassland ecosystems is central to evolutionary interpretations many mammal lineages, including hominins. grasses are thought have become ecologically dominant in Africa only after 10 million years ago (Ma). However, paleobotanical records older than Ma sparse, limiting assessment the timing and nature biomass expansion. This study uses a multiproxy design document vegetation structure from nine Early Miocene site complexes across eastern Africa. Results...
Four new, nearly complete patellas of Proconsul heseloni and two P. nyanzae have been discovered on Rusinga Island, Kenya. Until recently, little was known the knee joint because fragmentary distorted nature available remains. These new provide an opportunity to assess structure function in . Fossil are also from Kenyapithecus, Oreopithecus Pliopithecus, providing important comparative database fossil hominoids with which compare patellas. Two mechanical models that relate external patellar...
Two catarrhine mandibles and five isolated teeth have been discovered from Early Miocene localities in Western Kenya. One mandible comes the well-known locality of Songhor whereas other is a newly locality, Lower Kapurtay, located near Songhor. The both can clearly be assigned to species Rangwapithecus gordoni based on molar morphology, which unique among catarrhines. specimens their similarities morphology homologues preserved two mandibles. These provide important new information about...
We describe five new specimens of Hippopotamidae from the Miocene Napudet, a site in southwestern Turkana Basin, Kenya. These include fragmentary maxillae with teeth and well-preserved mandibular symphysis. attribute them to Kenyapotamus ternani, least known species within Kenyapotamus, on basis relatively small dental dimensions clear distinction between parastyle mesiostyle upper molars. This attribution suggests an age older than 10 Ma for Napudet. A cladistic analysis integrating these...
New field observations and 40 Ar/ 39 Ar geochronology reveal that the Topernawi Formation of Ekitale Basin, northern Turkana Depression, County, Kenya was deposited entirely during Oligocene between 29.7 ± 0.5 Ma 29.24 0.08 Ma. These bracketing ages are determined via new on a basaltic lava flow at base section felsic ignimbrite near top. A newly discovered basal unit interbedded result in total sedimentary thickness 92 m. The is oldest dated syn-rift Depression.
Abstract Considerable taxonomic diversity has been recognised among early Miocene catarrhines (apes, Old World monkeys, and their extinct relatives). However, locomotor within this group eluded characterization, bolstering a narrative that nearly all shared primitive repertoire resembling of the well-described arboreal quadruped Ekembo heseloni . Here we describe analyse seven catarrhine capitates from Tinderet sequence Kenya, dated to ~20 Ma. 3D morphometrics derived these specimens sample...
Early Miocene deposits at Buluk in northern Kenya have produced an abundant and diverse community of mammalian fossils, including catarrhine primates, the site is important resource for characterizing habitat heterogeneity across East Africa during early-middle transition.Here we present results stable carbon oxygen isotope analyses fossil tooth enamel from Buluk's ruminant artiodactyls, suoids, anthracotheres, rhinocerotids, proboscideans, hyraxes, to address nature C 3 vegetation (i.e.,...
The Topernawi area of west Turkana, northern Kenya, preserves a number recently discovered vertebrate fossil localities mid-Oligocene age. fauna provides important new data on mammalian evolution in equatorial eastern Africa during the mid-Cenozoic. Here, we describe five species hyracoids from Topernawi: Nengohyrax josephi, Abdahyrax philipi, Geniohyus ewoii, Thyrohyrax lokutani, and ekaii. These range reconstructed body mass ∼8 to ∼150 kg, comparable size that has been observed at other...