title: Cretaceous avian crops reveal dietary secrets and pose evolutionary questions.
authors.affiliation: Department of Biology, University of North Carolina, Chapel Hill, NC 27599-3280, USA. feduccia@bio.unc.edu
authors.forename: Alan
authors.initials: A
authors.lastname: Feduccia
mesh_terms: D000818:Animals; D005075:Biological Evolution; D001717:Birds / Q000033:anatomy & histology*; D003426:Crop, Avian / Q000033:anatomy & histology*; D005580:Fossils