title: Paleontology. Pint-sized predator rattles the dinosaur family tree.
authors.forename: Michael
authors.initials: M
authors.lastname: Balter
mesh_terms: D000818:Animals; D001118:Argentina; D005075:Biological Evolution; D025061:Dinosaurs / Q000033:anatomy & histology / Q000145:classification*; D053476:Extinction, Biological; D005580:Fossils