Меловой период

Godefroit P., Bolotsky Y.L., Bolotsky I.Y. (2011) Osteology and relationships of Olorotitan arharensis, a hollowcrested hadrosaurid dinosaur from the latest Cretaceous of Far Eastern Russia // Acta Palaeontologica Polonica in press, available online 09 Sep 2011 doi:10.4202/app.2011.0051

pdf: http://app.pan.pl/archive/published/app ... 51_acc.pdf