Display bibliographic references beginning with:
[
Billet, Guillaume and De Muizon, Christian. 2013. External and Internal Anatomy of a Petrosal from the Late Paleocene of ItaboraÃ, Brazil, Referred to Notoungulata (Placentalia). Journal of Vertebrate Paleontology. Vol. 33(2), pp. 455-469.
Billet, G. and Muizon, C. D. 2013. External and internal anatomy of a petrosal from the late Paleocene of Itaboraí, Brazil, referred to Notoungulata (Placentalia). Journal of Vertebrate Paleontology. Vol. 33(2), pp. 455-469.