Research Topics
| M H SchweitzerSummaryAffiliation: North Carolina State University Country: USA Publications
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Detail Information
Publications
Soft-tissue vessels and cellular preservation in Tyrannosaurus rexMary H Schweitzer
Department of Marine, Earth, Atmospheric Sciences, North Carolina State University, Raleigh, NC 27695, USA
Science 307:1952-5. 2005..Three populations of microstructures have cell-like morphology. Thus, some dinosaurian soft tissues may retain some of their original flexibility, elasticity, and resilience...
Molecular analyses of dinosaur osteocytes support the presence of endogenous moleculesMary Higby Schweitzer
Department of Marine, Earth and Atmospheric Sciences, North Carolina State University, Raleigh, NC 27695, USA North Carolina State Museum of Natural Sciences, 11 Jones Street, Raleigh, NC 27601, USA Electronic address
Bone 52:414-23. 2013..We propose mechanisms for preservation of cells and component molecules, and discuss implications for dinosaurian cellular biology...
Biomolecular characterization and protein sequences of the Campanian hadrosaur B. canadensisMary H Schweitzer
North Carolina State University, Raleigh, NC 27695, USA
Science 324:626-31. 2009..These data complement earlier results from Tyrannosaurus rex (MOR 1125) and confirm that molecular preservation in Cretaceous dinosaurs is not a unique event...
Experimental support for an immunological approach to the search for life on other planetsMary Higby Schweitzer
Department of Marine, Earth and Atmospheric Sciences, North Carolina State University, Raleigh, North Carolina 27695, USA
Astrobiology 5:30-47. 2005..The antigens and antibodies were chosen on the basis of criteria designed to optimize the detection of extraterrestrial biomarkers unique to living or once-living organisms...
Analyses of soft tissue from Tyrannosaurus rex suggest the presence of proteinMary Higby Schweitzer
Department of Marine, Earth and Atmospheric Sciences, North Carolina State University, Raleigh, NC 27695, USA
Science 316:277-80. 2007..The presence of endogenous protein in dinosaur bone may validate hypotheses about evolutionary relationships, rates, and patterns of molecular change and degradation, as well as the chemical stability of molecules over time...
Molecular preservation in Late Cretaceous sauropod dinosaur eggshellsM H Schweitzer
Departments of Microbiology and Museum of the Rockies, Montana State University, Bozeman, MT 59717, USA
Proc Biol Sci 272:775-84. 2005..Results demonstrate organic compounds and antigenic structures similar to those found in extant eggshells...
Gender-specific reproductive tissue in ratites and Tyrannosaurus rexMary H Schweitzer
Department of Marine, Earth, and Atmospheric Sciences, North Carolina State University, Raleigh, NC 27695, USA
Science 308:1456-60. 2005....
Do egg-laying crocodilian (Alligator mississippiensis) archosaurs form medullary bone?M H Schweitzer
Department of Marine, Earth, Atmospheric Sciences, North Carolina State University, Raleigh, NC 27695, USA
Bone 40:1152-8. 2007....
Soft tissue and cellular preservation in vertebrate skeletal elements from the Cretaceous to the presentMary Higby Schweitzer
Department of Marine, Earth and Atmospheric Sciences, North Carolina State University, Raleigh, NC 27695, USA
Proc Biol Sci 274:183-97. 2007..Additionally, in many cases, osteocytes with defined nuclei are preserved, and may represent an important source for informative molecular data...
Beta-keratin specific immunological reactivity in feather-like structures of the cretaceous alvarezsaurid, Shuvuuia desertiM H Schweitzer
Department of Biology, Montana State University, Bozeman, Montana 59717, USA
J Exp Zool 285:146-57. 1999..J. Exp. Zool. (Mol. Dev. Evol.) 285:146-157, 1999...
Preservation of bone collagen from the late Cretaceous period studied by immunological techniques and atomic force microscopyR Avci
Montana State University, Department of Physics, EPS 264, Bozeman, Montana 59717, USA
Langmuir 21:3584-90. 2005..No appreciable differences in collagen pull-off properties were measured between fossil and extant bone samples under physiological conditions...
A molecular model for the evolution of endothermy in the theropod-bird lineageM H Schweitzer
Department of Microbiology, Lewis Hall, Montana State University, Bozeman, MT 59717, USA
J Exp Zool 291:317-38. 2001..In addition, the model integrates known genetic, metabolic, and developmental aspects of extant taxa that phylogenetically bracket theropod dinosaurs for comparison with information derived from the fossil record of related extinct taxa...
Porphyrin as an ideal biomarker in the search for extraterrestrial lifeZhiyong Suo
ICAL Facility, Department of Physics, Montana State University, Bozeman, MT 59717, USA
Astrobiology 7:605-15. 2007..We present preliminary data to support the use of ToFSIMS as a powerful technique in the identification of porphyrins...
A silicified bird from Quaternary hot spring depositsAlan Channing
School of Earth, Ocean and Planetary Sciences, Cardiff University, Main Building, Park Place, Cardiff CF10 3YE, UK
Proc Biol Sci 272:905-11. 2005..We suggest physico-chemical parameters conducive to similar preservation in other vertebrate specimens, plus distinctive sinter macrofabric markers of hot spring subenvironments where these parameters are met...
