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Initiation of the western branch of the East African Rift coeval with the eastern branch
Rifting of the eastern part of the East African Rift System was thought to have begun several million years before its western counterpart. Reconstructions of drainage development, combined with…
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Palaeontological evidence for an Oligocene divergence between Old World monkeys and apes
TLDR
The oldest known fossil ‘ape’ is described, represented by a partial mandible preserving dental features that place it with ‘nyanzapithecine’ stem hominoids, and the oldest stem member of the Old World monkey clade is reported, representing by a lower third molar.
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Sedimentology and depositional environments of the Red Sandstone Group, Rukwa Rift Basin, southwestern Tanzania: new insight into Cretaceous and Paleogene terrestrial ecosystems and tectonics in…
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The effect of branch diameter on primate gait sequence pattern
  • N. Stevens
  • Biology
    American journal of primatology
  • 1 April 2008
TLDR
Results indicate surprisingly little evidence to suggest that alterations in gait sequence pattern provide a specific advantage for negotiating narrow supports, and analyses of covariance showed no significant differences in limb phase values between broad and narrow diameter supports.
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The evolution of mammal-like crocodyliforms in the Cretaceous Period of Gondwana
TLDR
A new species of Cretaceous notosuchian crocodyliform from the Rukwa Rift Basin of southwestern Tanzania is reported, having a short, broad skull, robust lower jaw, and a dentition with relatively few teeth that nonetheless show marked heterodonty.
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Stability, limb coordination and substrate type: the ecorelevance of gait sequence pattern in primates.
  • N. Stevens
  • Biology
    Journal of experimental zoology. Part A…
  • 1 November 2006
TLDR
It is apparent that primates possess unique morphologies and a higher than typically recognized degree of flexibility in gait sequence pattern, both of which likely offer advantages for moving upon discontinuous and unstable terminal branches.
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Archaeology, palaeoenvironment, and chronology of the Tsodilo Hills White Paintings Rock Shelter, northwest Kalahari Desert, Botswana
Abstract Excavations conducted at the White Paintings Rock Shelter (WPS) have uncovered 7 m of deposits ranging in age from the historic period to at least 100,000 years at the base. Eleven…
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Comparisons of Suspensory Behaviors Among Pygathrix cinerea, P. nemaeus, and Nomascus leucogenys in Cuc Phuong National Park, Vietnam
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…
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Revised stratigraphy and age of the Red Sandstone Group in the Rukwa Rift Basin, Tanzania
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Simbakubwa kutokaafrika, gen. et sp. nov. (Hyainailourinae, Hyaenodonta, ‘Creodonta,’ Mammalia), a gigantic carnivore from the earliest Miocene of Kenya
ABSTRACT Hyainailourine hyaenodonts are among the largest terrestrial carnivorous mammals known. The clade is widely dispersed, found in Eurasia, North America, and Afro-Arabia in the Paleogene and…
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