title: Paleontology. Marsupial origins.
authors.affiliation: Oklahoma Museum of Natural History and Department of Zoology, University of Oklahoma, Norman, OK 73072, USA. rlc@ou.edu
authors.forename: Richard L
authors.initials: RL
authors.lastname: Cifelli
authors.forename: Brian M
authors.initials: BM
authors.lastname: Davis
mesh_terms: D000220:Adaptation, Biological; D000818:Animals; D005075:Biological Evolution; D001842:Bone and Bones / Q000033:anatomy & histology; D002681:China; D005580:Fossils; D008322:Mammals / Q000145:classification / Q000235:genetics / Q000502:physiology; D008394:Marsupialia / Q000033:anatomy & histology / Q000145:classification / Q000235:genetics / Q000502:physiology; D010163:Paleontology; D010802:Phylogeny; D013995:Time