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An Evaluation of Embalmed Cadaveric Human Tissue in the Investigation of Multiple Freeze and Thaw Cycles on the Histological Morphology of Human Bone
DownloadFall 2012
Our understanding of the myriad of possible taphonomic agents acting on remains in a forensic context has dramatically increased over the last two decades (Haglund and Sorg, 2002); however, the effects of cold temperature on the microstructure of bone tissue are still not well understood. Recent...
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Bare-bones Paleontology: An Examination of the Systematic Methods Used in Vertebrate Paleontology and their Congruence with Avian Ichnotaxonomy
DownloadSpring 2016
Data used in the systematic paleontology of extinct vertebrates is limited to what can be collected from detailed comparisons of preserved anatomy. This restricts vertebrate paleontologists to those characters preserved on osteological specimens. Furthermore, parataxonomies such as ichnotaxonomy...
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Critical analysis of the factors affecting the "cranial suture aging method" using the Hamann Todd Collection
DownloadFall 2014
Cranial suture closure has been regarded as an unreliable method for age estimation due to the large amount of variability in the commencement, progression and termination of fusion. A preliminary study done on the J.C.B. Grant Collection (University of Toronto; Toronto, Ontario) showed that...
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Fall 2018
A full understanding of the evolution of novel forms requires inference about their origins through the study of variation in extant taxa and clues from the fossil record. However, the origins of morphological diversity in many groups are obscured by the scarcity of transitional fossils or...
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Osteology, Taxonomy, Phylogeny, and Body Shape Changes of Eocene Catostomid and Problematic Catostomid Fishes
DownloadFall 2016
Extant catostomid fishes occupy diverse aquatic ecosystems and niches in North America (NA). Less than 3% of catostomid taxonomic richness, or two species, are found outside of NA in Asia. Such adjunct and unbalanced distribution pattern has been established since the late Oligocene, when...
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Systematics and palaeobiology of the crested hadrosaurine Saurolophus from Canada and Mongolia
DownloadFall 2011
Reappraisal of Saurolophus confirms Saurolophus osborni and Saurolophus angustirostris as distinct species. Synapomorphies of Saurolophus include a spike-like pseudonarial crest formed by the nasals, frontals, and prefrontals; tripartite frontals with anteroventral and posterodorsal extensions...
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Fall 2020
Ceratopsidae is a group of non-avian dinosaurs known for their distinctive cranial ornamentation and horns. This ornamentation has become the focal point of ceratopsid research and therefore has led to a state of affairs in ceratopsid palaeontology in which taxa are diagnosed on the basis of...
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Spring 2020
The human bony pelvis is important in many anthropological studies of archaeological populations and of human evolution as it balances two important human characteristics: upright walking and the birthing of large-brained infants. While it has been thought that the female pelvis is selectively...