Testing co-evolutionary hypotheses over geological timescales: interactions between Mesozoic non-avian dinosaurs and cycads

by Butler, Richard J., Barrett, Paul M., Kenrick, Paul, Penn, Malcolm G.
Source: 1. 6th Meeting of the European association of vertebrate palaeontologists 1. Spišská Nová Ves : Múzeum Spiša, 2008 1. 9788085173031 1. S. 98