Spelling suggestions: "subject:"fossil hominis"" "subject:"fossil hominins""
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A knowledge-based system for hominid fossilsCooper, Robert D. January 2004 (has links)
Thesis (M.S.)--University of Florida, 2004. / Title from title page of source document. Document formatted into pages; contains 77 pages. Includes vita. Includes bibliographical references.
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Laetoli Pliocene paleoecology : a reanalysis via morphological and behavioral approaches /Musiba, Charles M. January 1999 (has links)
Thesis (Ph. D.)--University of Chicago, Dept. of Anthropology, December 1999. / Includes bibliographical references. Also available on the Internet.
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Determining the relations between canine crown height and root basal diameters and root length implications for the hominin fossil record /Paulus, Faydre L. January 2006 (has links)
Thesis (M.A.) University of Missouri-Columbia, 2006. / The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file viewed on (May 20, 2007) Vita. Includes bibliographical references.
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Paleoecological reconstructions of the South African Plio-Pleistocene based on low-magnification dental microwear of fossil primatesCarter, Brian D. January 2006 (has links)
Thesis (M.A.)--Georgia State University, 2006. / Title from title screen. Frank L. Williams, committee chair; Cassandra White, Susan C. McCombie, committee members. Description based on contents viewed June 25, 2007. Includes bibliographical references (p. 89-99).
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A morphometric analysis of hominin teeth attributed to different species of australopithecus, paranthropus and homoDykes, Susan J. 02 February 2015 (has links)
A dissertation submitted to the Faculty of Science, University of the Witwatersrand, Johannesburg, in fulfilment of requirements for the degree of Master of Science. Johannesburg, October 29, 2014. / Teeth are the most common element in the fossil record and play a critical role in taxonomic assessments. Size, relative width and cusp arrangements on enamel crown surfaces are used to help assess relationships between specimens. In this exploratory study, a model is developed for the placement of landmarks on images of lower first molars to maximise key information from crown surfaces of molars of African Plio-Pleistocene hominin fossils representing species of Australopithecus, Paranthropus and Homo. Lower first molar data of four extant species (Pan paniscus, Pan troglodytes, Gorilla and Homo sapiens) are visualised in a principal components analysis to detect whether landmark placements are adequate to identify species groupings and overlaps and patterns indicative of sexual dimorphism. The role of size as a differentiator between extant species is visualised using Procrustes Form Space as the basis for the analysis. A series of analyses, including linear diameter plots, Procrustes averaging, principal components analyses, discriminant function analyses and log sem (based on regression analyses) are used to test whether species groupings agree with currently accepted taxonomic classifications of thirty-six African Plio-Pleistocene hominin lower
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first molars. Specimens in the sample that consistently fail to group with current species designations are flagged as “anomalous”. Six specimens are identified as anomalous and these are ultimately removed from the analyses. The resultant principal components plot of the fossil specimens appears to show distinctions between currently accepted species groups. The statistical regression analyses (log sem) confirm the results from the geometric morphometric analyses, and are associated with an average log sem value of -1.61 for conspecific pairwise comparisons. The log sem value of -1.61 has been proposed by Thackeray (2007a) as an approximation of a biological species constant (T), based on pairwise comparisons of modern vertebrate taxa, using cranial data. The anomalies confirm the hypothesis that certain specimens from the sample may have been misclassified, and that certain species groups as currently defined may comprise more than one morphotype.
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A critical assessment of southern African 'early hominid bone tools'Backwell, Lucinda Ruth 10 March 2014 (has links)
Thesis (M.Sc.)--University of the Witwatersrand, Faculty of Science, 2000.
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The Paranthropus face: examining a developmental modelUnknown Date (has links)
The Paranthropus head is characterized by features traditionally thought to be related to heavy chewing. McCollum [Science 284 (1999) : 301-305] proposed that palatal thickening is a response to developmental integration between the mandibular ramus, oral and nasal functional matrices, and the vomer, which inserts onto the premaxilla in Paranthropus and causes the palate to thicken instead of rotate during vertical expansion. I tested whether palate thickness increases as a byproduct of differential increases in the sizes of the oral and nasal functional matrices compared to growth in the mandibular ramus. To do so, I collected 3D volume and landmark data from computed tomography (CT) scans of extant (Homo sapiens, Pan troglodytes, Gorilla gorilla, Pongo pygmaeus) and extinct taxa (Australopithecus and Paranthropus), and tested counterpart relationships for bones in the cranium using scaling analyses. Results suggest that developmental constraints related to growth counterpart relationships in the skulll are unlikely to affect palate thickness in the genus Paranthropus. / by Brittany A. Burdelsky. / Thesis (M.A.)--Florida Atlantic University, 2012. / Includes bibliography. / Mode of access: World Wide Web. / System requirements: Adobe Reader.
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The timing of growth spurts in NeanderthalsUnknown Date (has links)
The timing of skeletal growth spurts in modern humans is unique among mammals. In modern humans, peak growth occurs after puberty during the adolescent period, whereas large-bodied non-human primates exhibit an earlier juvenile growth spurt. Based on limited data, previous researchers have suggested that Neanderthals experienced a late, modern human-like adolescent growth spurt. In this study, I examined the timing of stature and facial growth spurts in Neanderthals to test the hypothesis that Neanderthals grew like modern humans. In order to assess the timing of Neanderthal growth spurts, I plotted a non-human primate regression estimate of age at puberty onto Neanderthal stature and mandibular velocity growth curves. The mandibular growth curve exhibits a discernible growth spurt after puberty, reminiscent of the modern human adolescent growth spurt. Future research on additional regions of the skeleton is necessary to further refine this estimate for the timing of Neanderthal growth spurts. / by Amy C. Lupo. / Thesis (M.A.)--Florida Atlantic University, 2010. / Includes bibliography. / Electronic reproduction. Boca Raton, Fla., 2010. Mode of access: World Wide Web.
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Thoracic and lumbar vertebrae of African hominids ancient and recent: morphological and fuctional aspects with special reference to upright postureBenade, Maria Magdalena 18 July 2016 (has links)
A Dissertation Submitted to the Faculty of Science University
of the Witwatersrand, Johannesburg for the Degree of Master
of Science
January, 1990 / This is a study of the morphological and functional aspects
of A. africanus thoracic and lumbar vertebrae in comparison
with those of modern human and anthropoid ape vertebrae. The
purpose is to determine if any derived features in the
morphology of hominids, as distinct from primitive features
shared with non-hominids, were present and if so to what
stage of attainment of full erectness such features point.
The major results of this study are as follows: (i) There is
a difference in the configuration of the lumbar articular
facets between pongids, on the one hand, and modern human and
A. africanus, on the other hand. This difference suggests
that similar stresses operate in these regions in the two
hominid groups. (ii) Bony adaptation to a developed lumbar
lordosis is present in A. africanus. (iii) Major agreement
has been found in the relative dimensions of modern human and
A. africanus lumbar vertebrae, in contrast to those of pongid
vertebrae. This indicates probable correspondence in the
pattern of weight transmission to the pelvis in modern humans
and A. africanus. (iv) The decrease of inferior lumbar
vertebral body area starts at higher levels in sts 14 (an A.
africanus partial skeleton) than in modern man, suggesting a
longer curved lower lumbar region in A. africanus.
From these results it may be concluded that the trunk was
probably carried in a fully erect posture in A. africanus.
The bony adaptation thereto, however, may not have been fully
developed as in modern man. It is proposed that, in Sts 14,
the last two lumbar vertebrae were carried at an angle
relative to each other and to the sacrum, in contrast to the
abrupt change in direction between L5 and the sacrum in
modern man.
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The comparative paleoecology of late Miocene Eurasian hominoidsScott, Robert Smith. Kappelman, John W. January 2004 (has links) (PDF)
Thesis (Ph. D.)--University of Texas at Austin, 2004. / Supervisor: John Kappelman. Vita. Includes bibliographical references. Also available from UMI.
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