E. Simons

Publications290
h-index56
Citations9,984
Highly Influential Citations550
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Fossil evidence for an ancient divergence of lorises and galagos
TLDR
The first demonstrable crown strepsirrhines from the Afro-Arabian Palaeogene are described—a galagid and a possible lorisid from the late middle Eocene of Egypt, the latter of which provides the earliest fossil evidence for the distinctive strepsIRrhine toothcomb. Expand
Basal Anthropoids from Egypt and the Antiquity of Africa's Higher Primate Radiation
TLDR
Biretia is unique among early anthropoids in exhibiting evidence for nocturnality, but derived dental features shared with younger parapithecids draw this genus, and possibly >45-million-year-old Algeripithecus, into a morphologically and behaviorally diverse parapithecoid clade of great antiquity. Expand
Evolution of the Side-Necked Turtles: The Family Podocnemididae
TLDR
The family Podocnemididae is reconfirmed as monophyletic, using the unique possession of a cavum pterygoidei formed by the basisphenoid, pterygoid, prootic, and quadrate, and the resulting consensus of nine equally parsimonious cladograms is the basis for a new classification of the family. Expand
Primate postcrania from the late middle Eocene of Myanmar
TLDR
The humerus and ulna indicate that Pondaungia was capable of a wide variety of forelimb movements, with great mobility at the shoulder joint, and Morphology of the distal calcaneus indicates that the hind feet were mobile at the transverse tarsal joint. Expand
Fossil Birds from the Oligocene Jebel Qatrani Formation Fayum Province, Egypt
Rasmussen, D. Tab, Storrs L. Olson, and Elwyn L. Simons. Fossil Birds from the Oligocène Jebel Qatrani Formation, Fayum Province, Egypt. Smithsonian Contributions to Paleobiology, number 62, 20… Expand
Distribution and stratigraphic correlation of upper Paleocene and lower Eocene fossil mammal and plant localities of the Fort Union, Willwood, and Tatman formations, southern Bighorn Basin, Wyoming
Craniodental Morphology and Systematics of a New Family of Hystricognathous Rodents (Gaudeamuridae) from the Late Eocene and Early Oligocene of Egypt
TLDR
The oldest known remains of Gaudeamus are described, including largely complete but crushed crania and complete upper and lower dentitions, and Gaudeamurids are the only known crown hystricognaths from Afro-Arabia that are likely to be aligned with non-phiomorph members of that clade, and as such provide additional support for an Afro -Arabian origin of advanced stem and basal crown members of Hysticognathi. Expand
Oldest known Varanus (Squamata: Varanidae) from the Upper Eocene and Lower Oligocene of Egypt: support for an African origin of the genus
TLDR
The recovery and identification of lizard vertebrae from northern Africa indicate that the genus Varanus arose in Africa, before dispersing to Australia and Asia, and supports the hypothesis that a corridor existed allowing freshwater and terrestrial organisms to cross from Africa to Asia. Expand
Primate Evolution: An Introduction to Man's Place in Nature.
Primate phylogeny: morphological vs. molecular results.
TLDR
This study confirms that, overall, phylogenetic reconstructions of Primates, and consequently their classifications, are more similar than dissimilar, and supports the Homo-Pan clade, although with characters not as strong as for other clades. Expand
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