Results 31 to 40 of about 22,746 (283)
Molecular Taphonomy of Heme: Chemical Degradation of Hemin under Presumed Fossilization Conditions
Molecules, 2023 The metalloporphyrin heme acts as the oxygen-complexing prosthetic group of hemoglobin in blood. Heme has been noted to survive for many millions of years in fossils. Here, we investigate its stability and degradation under various conditions expected to
Mariam Tahoun +4 more
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Oldest skeleton of a plesiadapiform provides additional evidence for an exclusively arboreal radiation of stem primates in the Palaeocene [PDF]
Royal Society Open Science, 2017 Palaechthonid plesiadapiforms from the Palaeocene of western North America have long been recognized as among the oldest and most primitive euarchontan mammals, a group that includes extant primates, colugos and treeshrews.
Stephen G. B. Chester +4 more
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Известия высших учебных заведений: Геология и разведка, 2015 The 250th anniversary of death of generous Russian scientist M.V. Lomonosov is celebrated in April 2015. His work «About the Earth’s layers» is the most important geological work of Lomonosov, which ideas were ahead of time and concerned different ...
V. N. Komarov
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Utilização de Veículos Alternativos de Comunicação para a Difusão do Conhecimento Paleontológico. [PDF]
Anuário do Instituto de Geociências, 2007 Paleontology teaching must be an usual subject in the cultural formation. It is from it that man understands the history ofEarth and its evolutionary process, giving a new look and perspective of what behaviors a society must adopt.
Ana Carolina Gelmini de Faria +5 more
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Paleontology in the 21st Century
Biology, 2023 For much of its 300+ year history, “modern” paleontology has been a descriptive science, firmly housed within geological sciences [...]
Mary H. Schweitzer
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Terr@ Plural, 2021 In the State University of Ponta Grossa is a reference institution in Paleontology in the State of Paraná, for being located on top of fossiliferous terrains of the Devonian and, mainly, by the tradition in research in this area since 1969.
Antonio Liccardo +4 more
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Predicting ecology and hearing sensitivities in Parapontoporia—An extinct long‐snouted dolphin
The Anatomical Record, EarlyView.Abstract Analyses of the cetacean (whale and dolphin) inner ear provide glimpses into the ecology and evolution of extinct and extant groups. The paleoecology of the long‐snouted odontocete (toothed whale) group, Parapontoporia, is primarily marine with its depositional context also suggesting freshwater tolerance.
Joyce Sanks, Rachel Racicot
wiley +1 more source
Ciência & Educação, 2005 A Paleontologia é recomendada pelos PCN como tema de ciências para o ensino básico brasileiro, sendo freqüente em muitos livros didáticos no País.
Fernanda Torello de Mello +2 more
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The Anatomical Record, EarlyView.Abstract The three mammalian auditory ossicles enhance sound transmission from the tympanic membrane to the inner ear. The anterior anchoring of the malleus is one of the key characters for functional classification of the auditory ossicles. Previous studies revealed a medial outgrowth of the mallear anterior process, the processus internus ...
Franziska Fritzsche +2 more
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Quantitative assessment of masticatory muscles based on skull muscle attachment areas in Carnivora
The Anatomical Record, EarlyView.Abstract Masticatory muscles are composed of the temporalis, masseter, and pterygoid muscles in mammals. Each muscle has a different origin on the skull and insertion on the mandible; thus, all masticatory muscles contract in different directions. Collecting in vivo data and directly measuring the masticatory muscles anatomically in various Carnivora ...
Kai Ito +4 more
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