(en) Federico L. Agnolin and David Varricchio, « Systematic reinterpretation of Piksi barbarulna Varricchio, 2002 from the Two Medicine Formation (Upper Cretaceous) of Western USA (Montana) as a pterosaur rather than a bird », Geodiversitas, vol. 34, no 4, , p. 883–894 (DOI10.5252/g2012n4a10, lire en ligne)
(en) Longrich N.R., Martill D.M. et Andres B., « Late Maastrichtian pterosaurs from North Africa and mass extinction of Pterosauria at the Cretaceous-Paleogene boundary », PLoS Biology, vol. 16, no 3, , e2001663 (PMID29534059, PMCID5849296, DOI10.1371/journal.pbio.2001663)
(en) R.R. Rogers, « Taphonomy of three dinosaur bone beds in the Upper Cretaceous Two Medicine Formation of northwestern Montana: evidence for drought-related mortality », PALAIOS, vol. 5, no 5, , p. 394–413 (DOI10.2307/3514834, JSTOR3514834)
(en) R.R. Rogers, « Taphonomy of three dinosaur bone beds in the Upper Cretaceous Two Medicine Formation of northwestern Montana: evidence for drought-related mortality », PALAIOS, vol. 5, no 5, , p. 394–413 (DOI10.2307/3514834, JSTOR3514834)
mnhn.fr
(en) Federico L. Agnolin and David Varricchio, « Systematic reinterpretation of Piksi barbarulna Varricchio, 2002 from the Two Medicine Formation (Upper Cretaceous) of Western USA (Montana) as a pterosaur rather than a bird », Geodiversitas, vol. 34, no 4, , p. 883–894 (DOI10.5252/g2012n4a10, lire en ligne)
(en) Longrich N.R., Martill D.M. et Andres B., « Late Maastrichtian pterosaurs from North Africa and mass extinction of Pterosauria at the Cretaceous-Paleogene boundary », PLoS Biology, vol. 16, no 3, , e2001663 (PMID29534059, PMCID5849296, DOI10.1371/journal.pbio.2001663)