New species from Ethiopia further expands Middle Pliocene hominin diversity

  title={New species from Ethiopia further expands Middle Pliocene hominin diversity},
  author={Yohannes Haile-Selassie and Luis Gibert and Stephanie M. Melillo and Timothy M Ryan and Mulugeta Alene and Alan L. Deino and Naomi E. Levin and Gary R. Scott and Beverly Z. Saylor},
Middle Pliocene hominin species diversity has been a subject of debate over the past two decades, particularly after the naming of Australopithecus bahrelghazali and Kenyanthropus platyops in addition to the well-known species Australopithecus afarensis. Further analyses continue to support the proposal that several hominin species co-existed during this time period. Here we recognize a new hominin species (Australopithecus deyiremeda sp. nov.) from 3.3–3.5-million-year-old deposits in the… 

Palaeoanthropology: The middle Pliocene gets crowded

  • F. Spoor
  • Geography, Environmental Science
  • 2015
Another Middle Pliocene hominin, Australopithecus deyiremida, is described, which lived in Ethiopia at around the same time as Australipithecus afarensis ('Lucy') and other species such as Kenyanthropus platyops in Kenya and its morphology suggests that some dental features traditionally associated with later genera such as Paranthropus and Homo emerged earlier than previously thought.

The Pliocene hominin diversity conundrum: Do more fossils mean less clarity?

A closer look at the currently available fossil evidence from Ethiopia, Kenya, and Chad indicates that Australopithecus afarensis was not the only hominin species during the middle Pliocene, and that there were other species clearly distinguishable from it by their locomotor adaptation and diet.

A 3.8-million-year-old hominin cranium from Woranso-Mille, Ethiopia

A nearly complete hominin cranium from Woranso-Mille (Ethiopia) that is date to 3.8 million years ago is described, providing the first glimpse of the entire craniofacial morphology of the earliest known members of the genus Australopithecus.

Introduction to KSD-VP-1/1: The Earliest Adult Partial Skeleton of Australopithecus afarensis

This edited volume provides the taphonomy and paleoecology of the partial skeleton, as well as detailed comparative descriptions of the preserved elements of KSD-VP-1/1 and their implications for the understanding of early hominin paleobiology.

Potential hominin affinities of Graecopithecus from the Late Miocene of Europe

The examination of its previously unknown dental root and pulp canal morphology confirms the taxonomic distinction from the significantly older northern Greek hominine Ouranopithecus and shows features that point to a possible phylogenetic affinity with hominins.

Middle Pliocene hominin distribution patterns in Eastern Africa.




New hominin genus from eastern Africa shows diverse middle Pliocene lineages

New fossils discovered west of Lake Turkana, Kenya, which differ markedly from those of contemporary A. afarensis point to an early diet-driven adaptive radiation, provide new insight on the association of hominin craniodental features, and have implications for the understanding of Plio–Pleistocene hom inin phylogeny.

A new species of the genus Australopithecus (Primates: Hominidae) from the Pliocene of eastern Africa

Careful evaluation of the material has led to the recognition of a distinctive suite of morphological traits distinguishing the Laetolil and Hadar remains from other hominid taxa, indicating the necessity of assigning these fossils to a new and more primitive species of Australopithecus.

A new hominin foot from Ethiopia shows multiple Pliocene bipedal adaptations

New pedal elements from a newly discovered partial hominin foot skeleton from eastern Africa show that new pedal elements belong to a species that does not match the contemporaneous Australopithecus afarensis in its morphology and inferred locomotor adaptations, but instead is more similar to the earlier Ardipithecus ramidus in possessing an opposable great toe.

Australopithecus garhi: a new species of early hominid from Ethiopia.

Discovery of 2.5 Ma hominid cranial and dental remains from the Hata beds of Ethiopia's Middle Awash allows recognition of a new species of Australopithecus, descended from Australipithecus afarensis and is a candidate ancestor for early Homo.

Hominin diversity in the Middle Pliocene of eastern Africa: the maxilla of KNM-WT 40000

The results of statistical analyses show that the attribution of KNM-WT 40000 to a separate species and the notion that hominin taxonomic diversity in Africa extends back well into the Middle Pliocene are supported.

New four-million-year-old hominid species from Kanapoi and Allia Bay, Kenya

The mosaic of primitive and derived features shows this species to be a possible ancestor to Australopithecus afarensis and suggests that Ardipithecus ramidus is a sister species to this and all later hominids.

"Lucy" redux: a review of research on Australopithecus afarensis.

The discovery and naming of A. afarensis coincided with important developments in theory and methodology in paleoanthropology; in addition, important fossil and genetic discoveries were changing expectations about hominin divergence dates from extant African apes.

New fossils from Koobi Fora in northern Kenya confirm taxonomic diversity in early Homo

Three newly discovered fossils are reported on that clarify the anatomy and taxonomic status of KNM-ER 1470 and confirm the presence of two contemporary species of early Homo, in addition to Homo erectus, in the early Pleistocene of eastern Africa.

New hominin fossils from Kanapoi, Kenya, and the mosaic evolution of canine teeth in early hominins

It is demonstrated that, although canine crown height did not differ between these species, A. anamensis had larger and more dimorphic roots, more like those of extant great apes and Ardipithecus ramidus , than those of A. afarensis .