TL;DR: The Tugen Hills specimen represents a new genus, which also incorporates all material previously referable to Kenyapithecus africanus, which is a late member of the stem hominoid radiation in the East African Miocene.
Abstract: A partial hominoid skeleton just older than 15 million years from sediments in the Tugen Hills of north central Kenya mandates a revision of the hominoid genus Kenyapithecus, a possible early member of the great ape-human clade. The Tugen Hills specimen represents a new genus, which also incorporates all material previously referable to Kenyapithecus africanus. The new taxon is derived with respect to earlier Miocene hominoids but is primitive with respect to the younger species Kenyapithecus wickeri and therefore is a late member of the stem hominoid radiation in the East African Miocene.
TL;DR: The morphology of the new species is similar in most respects to that of Kenyapithecus wickeri from Fort Ternan, especially concerning maxillary morphology, and the I(1) morphology, with greatly hypertrophied lingual marginal ridges bounding a uniformly thickened basal crown area, is distinctive among Miocene hominoids.
TL;DR: The Muyuyur Beds were deposited near the western margin of a lake that was formed during the early stages of faulting and volcanism in the African Rift system, and the bonebed in Member 1 appears to represent the influx of fluvially transported vertebrate and plant remains into a shallow portion of the lake.
TL;DR: While the anatomy of the wrist, thorax and hindlimb in Equatorius is similar to that of Afropithecus and Proconsul, the morphology of the new skeleton confirms earlier interpretations of greater terrestriality in EquATORius.
TL;DR: Ward et al. ably show that samples of thickly enameled Middle Miocene hominoids that they attribute to a new genus, Equatorius, are distinct from Kenyapithecus, but fail to show how equatorius differs from Griphopithecus.
Abstract: Ward et al ([1][1]) ably show that samples of thickly enameled Middle Miocene hominoids that they attribute to a new genus, Equatorius , are distinct from Kenyapithecus They fail to show, however, how Equatorius differs from Griphopithecus In so doing, they may have missed the hominoid