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A diminutive new basilosaurid whale reveals the trajectory of the cetacean life histories during the Eocene. Commun Biol. 2023 08 10; 6(1):707.
Antar MS, Gohar AS, El-Desouky H, Seiffert ER, El-Sayed S, Claxton AG, Sallam HM. PMID: 37563270; PMCID: PMC10415296.
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Total evidence time-scaled phylogenetic and biogeographic models for the evolution of sea cows (Sirenia, Afrotheria). PeerJ. 2022; 10:e13886.
Heritage S, Seiffert ER. PMID: 36042864; PMCID: PMC9420408.
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New phiocricetomyine rodents (Hystricognathi) from the Jebel Qatrani Formation, Fayum Depression, Egypt. PeerJ. 2021; 9:e12074.
Al-Ashqar SF, Seiffert ER, de Vries D, El-Sayed S, Antar MS, Sallam HM. PMID: 34721955; PMCID: PMC8533026.
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Widespread loss of mammalian lineage and dietary diversity in the early Oligocene of Afro-Arabia. Commun Biol. 2021 10 07; 4(1):1172.
de Vries D, Heritage S, Borths MR, Sallam HM, Seiffert ER. PMID: 34621013; PMCID: PMC8497553.
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An Early Oligocene age for the oldest known monkeys and rodents of South America. Proc Natl Acad Sci U S A. 2021 09 14; 118(37).
Campbell KE, O'Sullivan PB, Fleagle JG, de Vries D, Seiffert ER. PMID: 34493667; PMCID: PMC8449332.
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A new protocetid whale offers clues to biogeography and feeding ecology in early cetacean evolution. Proc Biol Sci. 2021 08 25; 288(1957):20211368.
Gohar AS, Antar MS, Boessenecker RW, Sabry DA, El-Sayed S, Seiffert ER, Zalmout IS, Sallam HM. PMID: 34428967; PMCID: PMC8385364.
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Dinosaur remains from the Late Cretaceous (Campanian) of the Western Desert, Egypt. Cretaceous Research. 2021; 123:104783.
Salem BS, O’Connor PM, Gorscak E, El-Sayed S, Sertich JWW, Seiffert ER, Sallam HM.
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Oldest record of African Bagridae and evidence from catfishes for a marine influence in the late Eocene Birket Qarun Locality 2 (BQ-2), Fayum Depression, Egypt. J. Vert. Paleo. 2020; (e1780248).
El-Sayed S, Murray AM, Kora MA, Abu el-Kheir GA, Antar MS, Seiffert ER, Sallam HM.
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Revision of Oligocene “Paraphiomys” and an origin for crown Thryonomyoidea (Rodentia, Hystricognathi, Phiomorpha) near the Oligocene-Miocene boundary in Africa. Zool. J. Linn. Soc. 2020; 190:352-371.
Sallam HM, Seiffert ER (2020) . Zoological Journal of the Linnean Society 190: 352-371.
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A parapithecid stem anthropoid of African origin in the Paleogene of South America. Science. 2020 04 10; 368(6487):194-197.
Seiffert ER, Tejedor MF, Fleagle JG, Novo NM, Cornejo FM, Bond M, de Vries D, Campbell KE. PMID: 32273470.
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New crocodylomorph material from the Fayum Depression, Egypt, including the first occurrence of a sebecosuchian in African late Eocene deposits. J. Vert. Paleo. 2020; e1729781.
Stefanic C, Nestler J, Seiffert ER, Turner A.
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Early anthropoid femora reveal divergent adaptive trajectories in catarrhine hind-limb evolution. Nat Commun. 2019 11 08; 10(1):4778.
Almécija S, Tallman M, Sallam HM, Fleagle JG, Hammond AS, Seiffert ER. PMID: 31699998; PMCID: PMC6838095.
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1 Fields:
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Vertical support use and primate origins. Sci Rep. 2019 08 26; 9(1):12341.
Yapuncich GS, Feng HJ, Dunn RH, Seiffert ER, Boyer DM. PMID: 31451739; PMCID: PMC6710261.
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An enigmatic crocodyliform from the Upper Cretaceous Quseir Formation, central Egypt. Cretaceous Research. 2018; 90:174-184.
Saber S, Sertich JJW, Sallam HM, Ouda KA, O’Connor PM, Seiffert ER.
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Fossil lemurs from Egypt and Kenya suggest an African origin for Madagascar's aye-aye. Nat Commun. 2018 08 21; 9(1):3193.
Gunnell GF, Boyer DM, Friscia AR, Heritage S, Manthi FK, Miller ER, Sallam HM, Simmons NB, Stevens NJ, Seiffert ER. PMID: 30131571; PMCID: PMC6104046.
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New Egyptian sauropod reveals Late Cretaceous dinosaur dispersal between Europe and Africa. Nat Ecol Evol. 2018 03; 2(3):445-451.
Sallam HM, Gorscak E, O'Connor PM, El-Dawoudi IA, El-Sayed S, Saber S, Kora MA, Sertich JJW, Seiffert ER, Lamanna MC. PMID: 29379183.
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Dental eruption and growth in Hyracoidea. J Vert Paleo. 2017; e1317638.
Asher RJ, Gunnell GF, Seiffert ER, Pattinson D, Tabuce R, Hautier L, Sallam HM.
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Craniodental and humeral morphology of a new species of Masrasector (Teratodontinae, Hyaenodonta, Placentalia) from the late Eocene of Egypt and locomotor diversity in hyaenodonts. PLoS One. 2017; 12(4):e0173527.
Borths MR, Seiffert ER. PMID: 28422967; PMCID: PMC5396875.
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Quantification of the position and depth of the flexor hallucis longus groove in euarchontans, with implications for the evolution of primate positional behavior. Am J Phys Anthropol. 2017 06; 163(2):367-406.
Yapuncich GS, Seiffert ER, Boyer DM. PMID: 28345775.
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2 Fields:
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A new genus and species of marine catfishes (Siluriformes; Ariidae) from the upper Eocene Birket Qarun Formation, Wadi El-Hitan, Egypt. PLoS One. 2017; 12(3):e0172409.
El-Sayed SE, Kora MA, Sallam HM, Claeson KM, Seiffert ER, Antar MS. PMID: 28248973; PMCID: PMC5332075.
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Hyainailourine and teratodontine cranial material from the late Eocene of Egypt and the application of parsimony and Bayesian methods to the phylogeny and biogeography of Hyaenodonta (Placentalia, Mammalia). PeerJ. 2016; 4:e2639.
Borths MR, Holroyd PA, Seiffert ER. PMID: 27867761; PMCID: PMC5111901.
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Ancient phylogenetic divergence of the enigmatic African rodent Zenkerella and the origin of anomalurid gliding. PeerJ. 2016; 4:e2320.
Heritage S, Fernández D, Sallam HM, Cronin DT, Esara Echube JM, Seiffert ER. PMID: 27602286; PMCID: PMC4991859.
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5 Fields:
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Internal carotid arterial canal size and scaling in Euarchonta: Re-assessing implications for arterial patency and phylogenetic relationships in early fossil primates. J Hum Evol. 2016 08; 97:123-44.
Boyer DM, Kirk EC, Silcox MT, Gunnell GF, Gilbert CC, Yapuncich GS, Allen KL, Welch E, Bloch JI, Gonzales LA, Kay RF, Seiffert ER. PMID: 27457550.
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New phiomorph rodents from the latest Eocene of Egypt, and the impact of Bayesian "clock"-based phylogenetic methods on estimates of basal hystricognath relationships and biochronology. PeerJ. 2016; 4:e1717.
Sallam HM, Seiffert ER. PMID: 26966657; PMCID: PMC4782727.
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Astragalar and calcaneal morphology of the middle Eocene primate Anchomomys frontanyensis (Anchomomyini): Implications for early primate evolution. J Hum Evol. 2016 Feb; 91:122-43.
Marigó J, Roig I, Seiffert ER, Moyà-Solà S, Boyer DM. PMID: 26852816.
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Primate tarsal bones from Egerkingen, Switzerland, attributable to the middle Eocene adapiform Caenopithecus lemuroides. PeerJ. 2015; 3:e1036.
Seiffert ER, Costeur L, Boyer DM. PMID: 26131376; PMCID: PMC4485257.
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Evolution of postural diversity in primates as reflected by the size and shape of the medial tibial facet of the talus. Am J Phys Anthropol. 2015 May; 157(1):134-77.
Boyer DM, Yapuncich GS, Butler JE, Dunn RH, Seiffert ER. PMID: 25682740.
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First cranial remains of a gondwanatherian mammal reveal remarkable mosaicism. Nature. 2014 Nov 27; 515(7528):512-7.
Krause DW, Hoffmann S, Wible JR, Kirk EC, Schultz JA, von Koenigswald W, Groenke JR, Rossie JB, O'Connor PM, Seiffert ER, Dumont ER, Holloway WL, Rogers RR, Rahantarisoa LJ, Kemp AD, Andriamialison H. PMID: 25383528.
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Anthracobunids from the middle eocene of India and pakistan are stem perissodactyls. PLoS One. 2014; 9(10):e109232.
Cooper LN, Seiffert ER, Clementz M, Madar SI, Bajpai S, Hussain ST, Thewissen JG. PMID: 25295875; PMCID: PMC4189980.
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New Myzopodidae (Chiroptera) from the late Paleogene of Egypt: emended family diagnosis and biogeographic origins of Noctilionoidea. PLoS One. 2014; 9(2):e86712.
Gunnell GF, Simmons NB, Seiffert ER. PMID: 24504061; PMCID: PMC3913578.
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6 Fields:
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Evolution and allometry of calcaneal elongation in living and extinct primates. PLoS One. 2013; 8(7):e67792.
Boyer DM, Seiffert ER, Gladman JT, Bloch JI. PMID: 23844094; PMCID: PMC3701013.
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A calcaneus attributable to the primitive late Eocene anthropoid Proteopithecus sylviae: phenetic affinities and phylogenetic implications. Am J Phys Anthropol. 2013 Jul; 151(3):372-97.
Gladman JT, Boyer DM, Simons EL, Seiffert ER. PMID: 23794332.
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Patterns of astragalar fibular facet orientation in extant and fossil primates and their evolutionary implications. Am J Phys Anthropol. 2013 Jul; 151(3):420-47.
Boyer DM, Seiffert ER. PMID: 23794333.
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10 Fields:
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Palaeontological evidence for an Oligocene divergence between Old World monkeys and apes. Nature. 2013 May 30; 497(7451):611-4.
Stevens NJ, Seiffert ER, O'Connor PM, Roberts EM, Schmitz MD, Krause C, Gorscak E, Ngasala S, Hieronymus TL, Temu J. PMID: 23676680.
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Last of the oligopithecids? A dwarf species from the youngest primate-bearing level of the Jebel Qatrani Formation, northern Egypt. J Hum Evol. 2013 Mar; 64(3):211-5.
Seiffert ER, Simons EL. PMID: 23416038.
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Early primate evolution in Afro-Arabia. Evol Anthropol. 2012 Nov; 21(6):239-53.
Seiffert ER. PMID: 23280921.
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Evolution of locomotion in Anthropoidea: the semicircular canal evidence. Proc Biol Sci. 2012 Sep 07; 279(1742):3467-75.
Ryan TM, Silcox MT, Walker A, Mao X, Begun DR, Benefit BR, Gingerich PD, Köhler M, Kordos L, McCrossin ML, Moyà-Solà S, Sanders WJ, Seiffert ER, Simons E, Zalmout IS, Spoor F. PMID: 22696520; PMCID: PMC3396915.
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22 Fields:
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New primate first metatarsals from the Paleogene of Egypt and the origin of the anthropoid big toe. J Hum Evol. 2012 Jul; 63(1):99-120.
Patel BA, Seiffert ER, Boyer DM, Jacobs RL, St Clair EM, Simons EL. PMID: 22694838.
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3 Fields:
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Evidence for a convergent slowdown in primate molecular rates and its implications for the timing of early primate evolution. Proc Natl Acad Sci U S A. 2012 Apr 17; 109(16):6006-11.
Steiper ME, Seiffert ER. PMID: 22474376; PMCID: PMC3341044.
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Diversity in the later Paleogene proboscidean radiation: a small barytheriid from the Oligocene of Dhofar Governorate, Sultanate of Oman. Naturwissenschaften. 2012 Feb; 99(2):133-41.
Seiffert ER, Nasir S, Al-Harthy A, Groenke JR, Kraatz BP, Stevens NJ, Al-Sayigh AR. PMID: 22230880.
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A radiation of arboreal basal eutherian mammals beginning in the Late Cretaceous of India. Proc Natl Acad Sci U S A. 2011 Sep 27; 108(39):16333-8.
Goswami A, Prasad GV, Upchurch P, Boyer DM, Seiffert ER, Verma O, Gheerbrant E, Flynn JJ. PMID: 21930906; PMCID: PMC3182738.
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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. PLoS One. 2011 Feb 22; 6(2):e16525.
Sallam HM, Seiffert ER, Simons EL. PMID: 21364934; PMCID: PMC3043065.
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8 Fields:
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Astragalar morphology of Afradapis, a large adapiform primate from the earliest late Eocene of Egypt. Am J Phys Anthropol. 2010 Nov; 143(3):383-402.
Boyer DM, Seiffert ER, Simons EL. PMID: 20949610.
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9 Fields:
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A fossil primate of uncertain affinities from the earliest late Eocene of Egypt. Proc Natl Acad Sci U S A. 2010 May 25; 107(21):9712-7.
Seiffert ER, Simons EL, Boyer DM, Perry JM, Ryan TM, Sallam HM. PMID: 20457923; PMCID: PMC2906843.
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Convergent evolution of anthropoid-like adaptations in Eocene adapiform primates. Nature. 2009 Oct 22; 461(7267):1118-21.
Seiffert ER, Perry JM, Simons EL, Boyer DM. PMID: 19847263.
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Fossil and molecular evidence constrain scenarios for the early evolutionary and biogeographic history of hystricognathous rodents. Proc Natl Acad Sci U S A. 2009 Sep 29; 106(39):16722-7.
Sallam HM, Seiffert ER, Steiper ME, Simons EL. PMID: 19805363; PMCID: PMC2757825.
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21 Fields:
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Stable isotope evidence for an amphibious phase in early proboscidean evolution. Proc Natl Acad Sci U S A. 2008 Apr 15; 105(15):5786-91.
Liu AG, Seiffert ER, Simons EL. PMID: 18413605; PMCID: PMC2311368.
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9 Fields:
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A new estimate of afrotherian phylogeny based on simultaneous analysis of genomic, morphological, and fossil evidence. BMC Evol Biol. 2007 Nov 13; 7:224.
Seiffert ER. PMID: 17999766; PMCID: PMC2248600.
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30 Fields:
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AnimalsCells
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Evolution and extinction of Afro-Arabian primates near the Eocene-Oligocene boundary. Folia Primatol (Basel). 2007; 78(5-6):314-27.
Seiffert ER. PMID: 17855785.
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13 Fields:
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A remarkable female cranium of the early Oligocene anthropoid Aegyptopithecus zeuxis (Catarrhini, Propliopithecidae). Proc Natl Acad Sci U S A. 2007 May 22; 104(21):8731-6.
Simons EL, Seiffert ER, Ryan TM, Attia Y. PMID: 17517628; PMCID: PMC1885571.
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11 Fields:
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Additional material of the enigmatic Early Miocene mammal Kelba and its relationship to the order Ptolemaiida. Proc Natl Acad Sci U S A. 2007 Mar 27; 104(13):5510-5.
Cote S, Werdelin L, Seiffert ER, Barry JC. PMID: 17372202; PMCID: PMC1838468.
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2 Fields:
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Early evolution and biogeography of lorisiform strepsirrhines. Am J Primatol. 2007 Jan; 69(1):27-35.
Seiffert ER. PMID: 17171668.
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9 Fields:
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Revised age estimates for the later Paleogene mammal faunas of Egypt and Oman. Proc Natl Acad Sci U S A. 2006 Mar 28; 103(13):5000-5.
Seiffert ER. PMID: 16549773; PMCID: PMC1458784.
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23 Fields:
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Basal anthropoids from Egypt and the antiquity of Africa's higher primate radiation. Science. 2005 Oct 14; 310(5746):300-4.
Seiffert ER, Simons EL, Clyde WC, Rossie JB, Attia Y, Bown TM, Chatrath P, Mathison ME. PMID: 16224019.
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Additional remains of Wadilemur elegans, a primitive stem galagid from the late Eocene of Egypt. Proc Natl Acad Sci U S A. 2005 Aug 09; 102(32):11396-401.
Seiffert ER, Simons EL, Ryan TM, Attia Y. PMID: 16087891; PMCID: PMC1183603.
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14 Fields:
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Afrotherian origins and interrelationships: new views and future prospects. Curr Top Dev Biol. 2004; 63:37-60.
Robinson TJ, Seiffert ER. PMID: 15536013.
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21 Fields:
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Oligocene mammals from Ethiopia and faunal exchange between Afro-Arabia and Eurasia. Nature. 2003 Dec 04; 426(6966):549-52.
Kappelman J, Rasmussen DT, Sanders WJ, Feseha M, Bown T, Copeland P, Crabaugh J, Fleagle J, Glantz M, Gordon A, Jacobs B, Maga M, Muldoon K, Pan A, Pyne L, Richmond B, Ryan T, Seiffert ER, Sen S, Todd L, Wiemann MC, Winkler A. PMID: 14654838.
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21 Fields:
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Fossil evidence for an ancient divergence of lorises and galagos. Nature. 2003 Mar 27; 422(6930):421-4.
Seiffert ER, Simons EL, Attia Y. PMID: 12660781.
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Astragalar morphology of late Eocene anthropoids from the Fayum Depression (Egypt) and the origin of catarrhine primates. J Hum Evol. 2001 Dec; 41(6):577-606.
Seiffert ER, Simons EL. PMID: 11782110.
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11 Fields:
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Earliest record of a parapithecid anthropoid from the Jebel Qatrani formation, Northern Egypt. Folia Primatol (Basel). 2001 Nov-Dec; 72(6):316-31.
Simons EL, Seiffert ER, Chatrath PS, Attia Y. PMID: 11964500.
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6 Fields:
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Morphometric variation in the hominoid orbital aperture: a case study with implications for the use of variable characters in Miocene catarrhine systematics. J Hum Evol. 2001 Apr; 40(4):301-18.
Seiffert ER, Kappelman J. PMID: 11312583.
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1 Fields:
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Anthropoid humeri from the late Eocene of Egypt. Proc Natl Acad Sci U S A. 2000 Aug 29; 97(18):10062-7.
Seiffert ER, Simons EL, Fleagle JG. PMID: 10963669; PMCID: PMC27687.
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5 Fields:
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Widanelfarasia, a diminutive placental from the late Eocene of Egypt. Proc Natl Acad Sci U S A. 2000 Mar 14; 97(6):2646-51.
Seiffert ER, Simons EL. PMID: 10694573; PMCID: PMC15983.
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5 Fields:
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Animals