Search Results - "Simons, Elwyn L."

Fossil and Molecular Evidence Constrain Scenarios for the Early Evolutionary and Biogeographic History of Hystricognathous Rodents by Sallam, Hesham M., Seiffert, Erik R., Steiper, Michael E., Simons, Elwyn L.

“…The early evolutionary and paleobiogeographic history of the diverse rodent clade Hystricognathi, which contains Hystricidae (Old World porcupines),…”
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Convergent evolution of anthropoid-like adaptations in Eocene adapiform primates by Seiffert, Erik R., Perry, Jonathan M. G., Simons, Elwyn L., Boyer, Doug M.

“…Aping the anthropoids The recent description of the primitive Eocene primate Darwinius — or 'Ida' — caused a stir, because of claims that it was a 'missing…”
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Craniodental morphology and systematics of a new family of hystricognathous rodents (Gaudeamuridae) from the late eocene and early oligocene of Egypt by Sallam, Hesham M, Seiffert, Erik R, Simons, Elwyn L

“…Gaudeamus is an enigmatic hystricognathous rodent that was, until recently, known solely from fragmentary material from early Oligocene sites in Egypt, Oman,…”
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Fossil evidence for an ancient divergence of lorises and galagos by Seiffert, Erik R, Simons, Elwyn L, Attia, Yousry

“…Morphological, molecular, and biogeographic data bearing on early primate evolution suggest that the clade containing extant (or 'crown') strepsirrhine…”
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fossil primate of uncertain affinities from the earliest late Eocene of Egypt by Seiffert, Erik R, Simons, Elwyn L, Boyer, Doug M, Perry, Jonathan M.G, Ryan, Timothy M, Sallam, Hesham M

“…Paleontological work carried out over the last 3 decades has established that three major primate groups were present in the Eocene of Africa--anthropoids,…”
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Basal Anthropoids from Egypt and the Antiquity of Africa's Higher Primate Radiation by Seiffert, Erik R, Simons, Elwyn L, Clyde, William C, Rossie, James B, Attia, Yousry, Bown, Thomas M, Chatrath, Prithijit, Mathison, Mark E

“…Early anthropoid evolution in Afro-Arabia is poorly documented, with only a few isolated teeth known from before [approximately]35 million years ago. Here we…”
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remarkable female cranium of the early Oligocene anthropoid Aegyptopithecus zeuxis (Catarrhini, Propliopithecidae) by Simons, Elwyn L, Seiffert, Erik R, Ryan, Timothy M, Attia, Yousry

“…The most complete and best-preserved cranium of a Paleogene anthropoid ever found, that of a small female of the early Oligocene ([almost equal to]29-30 Ma)…”
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A Freshwater Ichthyofauna from the Late Eocene Birket Qarun Formation, Fayum, Egypt by Murray, Alison M, Cook, Todd D, Attia, Yousry S, Chatrath, Prithijit, Simons, Elwyn L

“…A collection of fossil fish teeth and other elements from Eocene deposits on the northshore of Birket Qarun, Fayum Depression, Egypt, is reported. This…”
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The semicircular canal system and locomotion: The case of extinct lemuroids and lorisoids by Walker, Alan, Ryan, Timothy M., Silcox, Mary T., Simons, Elwyn L., Spoor, Fred

“…Paleontologists reconstruct the locomotor and postural behavior of extinct species by analogy with living forms and biomechanical analyses. In rare cases,…”
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Stable isotope evidence for an amphibious phase in early proboscidean evolution by Liu, Alexander G.S.C, Seiffert, Erik R, Simons, Elwyn L

“…The order Proboscidea includes extant elephants and their extinct relatives and is closely related to the aquatic sirenians (manatees and dugongs) and…”
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The Subfossil Occurrence and Paleoecological Significance of Small Mammals at Ankilitelo Cave, Southwestern Madagascar by Muldoon, Kathleen M., de Blieux, Donald D., Simons, Elwyn L., Chatrath, Prithijit S.

“…Small mammals are rarely reported from subfossil sites in Madagascar despite their importance for paleoenvironmental reconstruction, especially as it relates…”
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Additional Remains of Wadilemur elegans, a Primitive Stem Galagid from the Late Eocene of Egypt by Seiffert, Erik R., Simons, Elwyn L., Ryan, Timothy M., Attia, Yousry

“…The late Eocene prosimian Wadilemur elegans from the Jebel Qatrani Formation, northern Egypt, was originally interpreted as an anchomomyin adapiform primate…”
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Dental Microstructure and Life History in Subfossil Malagasy Lemurs by Schwartz, Gary T., Samonds, Karen E., Godfrey, Laurie R., Jungers, William L., Simons, Elwyn L.

“…When compared with their recently extinct relatives, living lemurs represent a mere fraction of a broad radiation that occupied unique niches in the recent…”
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Diets of fossil primates from the Fayum Depression of Egypt: a quantitative analysis of molar shearing by Kirk, E.Christopher, Simons, Elwyn L.

“…Over the last 90 years, Eocene and Oligocene aged sediments in the Fayum Depression of Egypt have yielded at least 17 genera of fossil primates. However, of…”
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Astragalar morphology of late Eocene anthropoids from the Fayum Depression (Egypt) and the origin of catarrhine primates by Seiffert, Erik R., Simons, Elwyn L.

“…The phylogenetic relationships of the late Eocene anthropoids Catopithecus browni andProteopithecus sylviae are currently a matter of debate, with opinion…”
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Primate Postcrania from the Late Middle Eocene of Myanmar by Ciochon, Russell L., Gingerich, Philip D., Gunnell, Gregg F., Simons, Elwyn L.

“…Fossil primates have been known from the late middle to late Eocene Pondaung Formation of Myanmar since the description of Pondaungia cotteri in 1927. Three…”
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The Cranium of Parapithecus grangeri, an Egyptian Oligocene Anthropoidean Primate by Simons, Elwyn L.

“…A nearly complete skull of Parapithecus grangeri from the early Oligocene of Egypt is described. The specimen is relatively undistorted and is undoubtedly the…”
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Paranasal Sinus Anatomy of Aegyptopithecus: Implications for Hominoid Origins by Rossie, James B., Simons, Elwyn L., Gauld, Suellen C., Rasmussen, D. Tab

“…The East African Early Miocene apes, or proconsulids, have often been considered to be among the earliest members of the Hominoidea, as defined by the…”
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Phalangeal Curvature and Positional Behavior in Extinct Sloth Lemurs (Primates, Palaeopropithecidae) by Jungers, W L, Godfrey, L R, Simons, E L, Chatrath, P S

“…Recent paleontological discoveries in Madagascar document the existence of a diverse clade of palaeopropithecids or ``sloth lemurs'': Mesopropithecus (three…”
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Astragalar morphology of Afradapis, a large adapiform primate from the earliest late Eocene of Egypt by Boyer, Doug M., Seiffert, Erik R., Simons, Elwyn L.

“…The ∼37 million‐year‐old Birket Qarun Locality 2 (BQ‐2), in the Birket Qarun Formation of Egypt's Fayum Depression, yields evidence for a diverse primate…”
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