title: X-ray microanalysis of fossil dinosaur bone: age differences in the calcium and phosphorus content of Gallimimus bullatus bones.
abstract: Bones of dinosaurs, Gallimimus bullatus, belonging to selected age groups were studied using an X-ray microanalyser. Content of calcium and phosphorus, their distribution in the investigated areas and Ca/P ratio were determined. The obtained results revealed that the Ca/P ratio highest in the bones of young and middle-aged animals and decreased with age.
authors.affiliation: Department of Histology, Copernicus Academy of Medicine, Kraków, Poland.
authors.forename: R
authors.initials: R
authors.lastname: Pawlicki
authors.forename: P
authors.initials: P
authors.lastname: Bolechała
mesh_terms: D000375:Aging; D000818:Animals; D001842:Bone and Bones / Q000032:analysis* / Q000166:cytology / Q000648:ultrastructure; D002118:Calcium / Q000032:analysis*; D004577:Electron Probe Microanalysis; D005580:Fossils; D008903:Minerals / Q000032:analysis; D010163:Paleontology; D010758:Phosphorus / Q000032:analysis*; D012104:Reptiles / Q000033:anatomy & histology*
chemical_list: D008903:Minerals; D010758:Phosphorus; D002118:Calcium