Recurrent spring-fed rivers in a Middle to Late Pleistocene semi-arid grassland: Implications for environments of early humans in the Lake Victoria Basin, Kenya

Sedimentology ◽  
2015 ◽  
Vol 62 (6) ◽  
pp. 1611-1635 ◽  
Author(s):  
Emily J. Beverly ◽  
Steven G. Driese ◽  
Daniel J. Peppe ◽  
Cara R. Johnson ◽  
Lauren A. Michel ◽  
...  
2012 ◽  
Vol 55 ◽  
pp. 59-74 ◽  
Author(s):  
Melissa A. Berke ◽  
Thomas C. Johnson ◽  
Josef P. Werne ◽  
Kliti Grice ◽  
Stefan Schouten ◽  
...  

2013 ◽  
Vol 21 (2) ◽  
pp. 213-222 ◽  
Author(s):  
J. Tyler Faith ◽  
Christian A. Tryon ◽  
Daniel J. Peppe ◽  
Emily J. Beverly ◽  
Nick Blegen

2021 ◽  
pp. 1-18
Author(s):  
Kris Kovarovic ◽  
J. Tyler Faith ◽  
Kirsten E. Jenkins ◽  
Christian A. Tryon ◽  
Daniel J. Peppe

Abstract Rusingoryx atopocranion is an extinct alcelaphin bovid from the late Pleistocene of Kenya, known for its distinctive hollow nasal crest. A bonebed of R. atopocranion from the Lake Victoria Basin provides a unique opportunity to examine the nearly complete postcranial ecomorphology of an extinct species, and yields data that are important to studying paleoenvironments and human-environment interaction. With a comparative sample of extant African bovids, we used discriminant function analyses to develop statistical ecomorphological models for 18 skeletal elements and element portions. Forelimb and hindlimb element models overwhelmingly predict that R. atopocranion was an open-adapted taxon. However, the phalanges of Rusingoryx are remarkably short relative to their breadth, a morphology outside the range of extant African bovids, which we interpret as an extreme open-habitat adaptation. It follows that even recently extinct fossil bovids can differ in important morphological ways relative to their extant counterparts, particularly if they have novel adaptations for past environments. This unusual phalanx morphology (in combination with other skeletal indications), mesowear, and dental enamel stable isotopes, demonstrate that Rusingoryx was a grassland specialist. Together, these data are consistent with independent geological and paleontological evidence for increased aridity and expanded grassland habitats across the Lake Victoria Basin.


2015 ◽  
Vol 82 ◽  
pp. 1-14 ◽  
Author(s):  
Nicole D. Garrett ◽  
David L. Fox ◽  
Kieran P. McNulty ◽  
J. Tyler Faith ◽  
Daniel J. Peppe ◽  
...  

Author(s):  
David Lopez-Carr ◽  
Kevin M. Mwenda ◽  
Narcisa G. Pricope ◽  
Phaedon C. Kyriakidis ◽  
Marta M. Jankowska ◽  
...  

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