Complex sentence: The findings were published on June 30,2009 in the journal, "The Proceedings of the National Academy of Sciences", under the title, "Quantitative analysis of dental microwear in hadrosaurid dinosaurs, and the implications for hypotheses of jaw mechanics and feeding".
Split into simpler sentences: The findings were published on June 30,2009 in the journal, "The Proceedings of the National Academy of Sciences". The study was published under the title, "Quantitative analysis of dental microwear in hadrosaurid dinosaurs, and the implications for hypotheses of jaw mechanics and feeding".