Menu
Home
People
Places
Arts
History
Plants & Animals
Science
Life & Culture
Technology
Reference.org
Blasisaurus
open-in-new
<h2 id="naming-and-discovery">Naming and discovery</h2> <p>The generic name refers to the <i>Blasi 1</i> site where the fossil was found. The <a href="/facts/Specific_name_(zoology)/RuH34bxb">specific epithet</a> honours <a href="/facts/Paleontologist/60n5yldd">paleontologist</a> José Ignacio Canudo.<a class="footnote-ref" id="fnref:2" href="#fn:2"><sup>2</sup></a> The holotype, MPZ99/667, is housed in <a href="/facts/Huesca/wkNUM5ol">Huesca</a>. It was found in a layer of the <a href="/facts/Ar%25C3%25A9n_Formation/U1xLSAta">Arén Formation</a> dating from the upper Maastrichtian, about 66 million years ago.<a class="footnote-ref" id="fnref:3" href="#fn:3"><sup>3</sup></a> It consists of a skull with fragmentary lower jaws.<a class="footnote-ref" id="fnref:4" href="#fn:4"><sup>4</sup></a> </p> <h2 id="description">Description</h2> <p><i>Blasisaurus</i> was a medium-sized <a href="/facts/Ornithopoda/HpWlQsXI">ornithopod</a>. Its describers identified two distinct features: the <a href="/facts/Cheekbone/on2Xkb0q">cheekbone</a> has a rear projection with a hook-shaped upper edge and the lower sleep window is narrow and D-shaped.<a class="footnote-ref" id="fnref:5" href="#fn:5"><sup>5</sup></a> From the same formation is <i><a href="/facts/Arenysaurus/frm1Yr6N">Arenysaurus</a></i>, a related species. They are distinguished by the shape of the teeth and missing secondary ridges. <i>Blasisaurus</i> also differs from <i><a href="/facts/Koutalisaurus/tWonVyBS">Koutalisaurus</a></i> by a downward bent front edge of the lower jaw.<a class="footnote-ref" id="fnref:6" href="#fn:6"><sup>6</sup></a> </p> <h2 id="phylogeny">Phylogeny</h2> <p><i>Blasisaurus'</i> discoverers performed an exact cladistic analysis to determine its phylogenetic position, which placed it as the sister taxon to <i><a href="/facts/Arenysaurus/frm1Yr6N">Arenysaurus</a></i>.<a class="footnote-ref" id="fnref:7" href="#fn:7"><sup>7</sup></a> Together they form a tribe, the <a href="/facts/Arenysaurini/3NlqX0Bo">Arenysaurini</a>, that is more derived than <i><a href="/facts/Tsintaosaurus/en5mf2VB">Tsintaosaurus</a></i> and <i><a href="/facts/Jaxartosaurus/v0VaBtRB">Jaxartosaurus</a></i>.<a class="footnote-ref" id="fnref:8" href="#fn:8"><sup>8</sup></a> <i>Blasisaurus</i> confirmed the hypothesis that, in the Late Cretaceous, different <a href="/facts/Hadrosauridae/v4t7JSPB">hadrosaurids</a> from <a href="/facts/Asia/4IToYrrQ">Asia</a> and <a href="/facts/Europe/DTAtrKfh">Europe</a> migrated across land bridges.<a class="footnote-ref" id="fnref:9" href="#fn:9"><sup>9</sup></a> Where in <a href="/facts/Lambeosaurinae/spWvHLLV">Lambeosaurinae</a> <i>Blasisaurus</i> and <i>Arenysaurus</i> belong is disputed. Some put them in the tribe <a href="/facts/Lambeosaurini/CQEStaUV">Lambeosaurini</a><a class="footnote-ref" id="fnref:10" href="#fn:10"><sup>10</sup></a> at the base of the lambeosaurin-parasaurolophin split,<a class="footnote-ref" id="fnref:11" href="#fn:11"><sup>11</sup></a> some in Parasaurolophini.<a class="footnote-ref" id="fnref:12" href="#fn:12"><sup>12</sup></a> Below is the most recent cladogram including <i>Blasisaurus</i> and <i>Arenysaurus</i>, published by Penélope Cruzado-Caballero <i>et al.</i> in 2013:<a class="footnote-ref" id="fnref:13" href="#fn:13"><sup>13</sup></a> </p> <table><tbody><tr><td><a href="/facts/Hadrosauridae/v4t7JSPB">Hadrosauridae</a></td><td rowspan="2"><table><tbody><tr><td></td><td rowspan="2"><p><i><a href="/facts/Gryposaurus_notabilis/mJwHvder">Gryposaurus notabilis</a></i></p></td></tr><tr><td></td></tr><tr><td></td><td rowspan="2"><table><tbody><tr><td></td><td rowspan="2"><p><i><a href="/facts/Aralosaurus_tuberiferus/6dMat6tb">Aralosaurus tuberiferus</a></i></p></td></tr><tr><td></td></tr><tr><td><a href="/facts/Lambeosaurinae/spWvHLLV">Lambeosaurinae</a></td><td rowspan="2"><table><tbody><tr><td></td><td rowspan="2"><table><tbody><tr><td></td><td rowspan="2"><p><i><a href="/facts/Pararhabdodon_isonensis/v9jQkw2x">Pararhabdodon isonensis</a></i></p></td></tr><tr><td></td></tr><tr><td></td><td rowspan="2"><p><i><a href="/facts/Tsintaosaurus_spinorhinus/en5mf2VB">Tsintaosaurus spinorhinus</a></i></p></td></tr><tr><td></td></tr></tbody></table></td></tr><tr><td></td></tr><tr><td></td><td rowspan="2"><table><tbody><tr><td></td><td rowspan="2"><p><i><a href="/facts/Jaxartosaurus_aralensis/v0VaBtRB">Jaxartosaurus aralensis</a></i></p></td></tr><tr><td></td></tr><tr><td></td><td rowspan="2"><table><tbody><tr><td></td><td rowspan="2"><p><i><a href="/facts/Amurosaurus_riabinini/qKRjzmN9">Amurosaurus riabinini</a></i></p></td></tr><tr><td></td></tr><tr><td></td><td rowspan="2"><table><tbody><tr><td></td><td rowspan="2"><p><i><a href="/facts/Sahaliyania_elunchunorum/rVGEnHR6">Sahaliyania elunchunorum</a></i></p></td></tr><tr><td></td></tr><tr><td><a href="/facts/Parasaurolophini/lxzjzVgS">Parasaurolophini</a></td><td rowspan="2"><table><tbody><tr><td></td><td rowspan="2"><p><i><a href="/facts/Charonosaurus_jiayinensis/kSAYLXCB">Charonosaurus jiayinensis</a></i></p></td></tr><tr><td></td></tr><tr><td></td><td rowspan="2"><table><tbody><tr><td></td><td rowspan="2"><table><tbody><tr><td></td><td rowspan="2"><p><i>Blasisaurus canudoi</i></p></td></tr><tr><td></td></tr><tr><td></td><td rowspan="2"><p><i><a href="/facts/Arenysaurus_ardevoli/frm1Yr6N">Arenysaurus ardevoli</a></i></p></td></tr><tr><td></td></tr></tbody></table></td></tr><tr><td></td></tr><tr><td><i><a href="/facts/Parasaurolophus/ergevzaD">Parasaurolophus</a></i></td><td rowspan="2"><table><tbody><tr><td></td><td rowspan="2"><p><i><a href="/facts/Parasaurolophus_cyrtocristatus/ergevzaD">Parasaurolophus cyrtocristatus</a></i></p></td></tr><tr><td></td></tr><tr><td></td><td rowspan="2"><table><tbody><tr><td></td><td rowspan="2"><p><i><a href="/facts/Parasaurolophus_tubicen/ergevzaD">Parasaurolophus tubicen</a></i></p></td></tr><tr><td></td></tr><tr><td></td><td rowspan="2"><p><i><a href="/facts/Parasaurolophus_walkeri/ergevzaD">Parasaurolophus walkeri</a></i></p></td></tr><tr><td></td></tr></tbody></table></td></tr><tr><td></td></tr></tbody></table></td></tr><tr><td></td></tr></tbody></table></td></tr><tr><td></td></tr></tbody></table></td></tr><tr><td></td></tr><tr><td><a href="/facts/Lambeosaurini/CQEStaUV">Lambeosaurini</a></td><td rowspan="2"><table><tbody><tr><td><i><a href="/facts/Lambeosaurus/UAw6JE3d">Lambeosaurus</a></i></td><td rowspan="2"><table><tbody><tr><td></td><td rowspan="2"><p><i><a href="/facts/Lambeosaurus_magnicristatus/UAw6JE3d">Lambeosaurus magnicristatus</a></i></p></td></tr><tr><td></td></tr><tr><td></td><td rowspan="2"><p><i><a href="/facts/Lambeosaurus_lambei/UAw6JE3d">Lambeosaurus lambei</a></i></p></td></tr><tr><td></td></tr></tbody></table></td></tr><tr><td></td></tr><tr><td></td><td rowspan="2"><table><tbody><tr><td></td><td rowspan="2"><p><i><a href="/facts/Velafrons_coahuilensis/vYavNEpW">Velafrons coahuilensis</a></i></p></td></tr><tr><td></td></tr><tr><td></td><td rowspan="2"><p><i><a href="/facts/Hypacrosaurus_altispinus/BeeBEEva">Hypacrosaurus altispinus</a></i></p></td></tr><tr><td></td></tr><tr><td></td><td rowspan="2"><p><i><a href="/facts/Hypacrosaurus_stebingeri/BeeBEEva">Hypacrosaurus stebingeri</a></i></p></td></tr><tr><td></td></tr><tr><td></td><td rowspan="2"><p><i><a href="/facts/Olorotitan_arharensis/a8yLBCSA">Olorotitan arharensis</a></i></p></td></tr><tr><td></td></tr><tr><td></td><td rowspan="2"><p><i><a href="/facts/Corythosaurus_casuarius/ctIvRqq4">Corythosaurus casuarius</a></i></p></td></tr><tr><td></td></tr></tbody></table></td></tr><tr><td></td></tr></tbody></table></td></tr><tr><td></td></tr></tbody></table></td></tr><tr><td></td></tr></tbody></table></td></tr><tr><td></td></tr></tbody></table></td></tr><tr><td></td></tr></tbody></table></td></tr><tr><td></td></tr></tbody></table></td></tr><tr><td></td></tr></tbody></table></td></tr><tr><td></td></tr></tbody></table> <h2 id="see-also">See also</h2> <ul> <li>Dinosaurs portal</li></ul> <ul><li><a href="/facts/Timeline_of_hadrosaur_research/ySp5nSr3">Timeline of hadrosaur research</a></li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>Cruzado-Caballero, Penélope; Xabier Pereda-Suberbiola; José Ignacio Ruiz-Omeñaca (2010). "Blasisaurus canudoi gen. et sp. nov., a new lambeosaurine dinosaur (Hadrosauridae) from the Latest Cretaceous of Arén (Huesca, Spain)". Canadian Journal of Earth Sciences. 47 (12): 1507–1517. Bibcode:2010CaJES..47.1507S. doi:10.1139/E10-081.[permanent dead link] <a href="http://rparticle.web-p.cisti.nrc.ca/rparticle/AbstractTemplateServlet?calyLang=eng&journal=cjes&volume=47&year=0&issue=12&msno=e10-081" target="_blank">http://rparticle.web-p.cisti.nrc.ca/rparticle/AbstractTemplateServlet?calyLang=eng&journal=cjes&volume=47&year=0&issue=12&msno=e10-081</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>Cruzado-Caballero, Penélope; Xabier Pereda-Suberbiola; José Ignacio Ruiz-Omeñaca (2010). "Blasisaurus canudoi gen. et sp. nov., a new lambeosaurine dinosaur (Hadrosauridae) from the Latest Cretaceous of Arén (Huesca, Spain)". Canadian Journal of Earth Sciences. 47 (12): 1507–1517. Bibcode:2010CaJES..47.1507S. doi:10.1139/E10-081.[permanent dead link] <a href="http://rparticle.web-p.cisti.nrc.ca/rparticle/AbstractTemplateServlet?calyLang=eng&journal=cjes&volume=47&year=0&issue=12&msno=e10-081" target="_blank">http://rparticle.web-p.cisti.nrc.ca/rparticle/AbstractTemplateServlet?calyLang=eng&journal=cjes&volume=47&year=0&issue=12&msno=e10-081</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> <li id="fn:3"><p>Cruzado-Caballero, Penélope; Xabier Pereda-Suberbiola; José Ignacio Ruiz-Omeñaca (2010). "Blasisaurus canudoi gen. et sp. nov., a new lambeosaurine dinosaur (Hadrosauridae) from the Latest Cretaceous of Arén (Huesca, Spain)". Canadian Journal of Earth Sciences. 47 (12): 1507–1517. Bibcode:2010CaJES..47.1507S. doi:10.1139/E10-081.[permanent dead link] <a href="http://rparticle.web-p.cisti.nrc.ca/rparticle/AbstractTemplateServlet?calyLang=eng&journal=cjes&volume=47&year=0&issue=12&msno=e10-081" target="_blank">http://rparticle.web-p.cisti.nrc.ca/rparticle/AbstractTemplateServlet?calyLang=eng&journal=cjes&volume=47&year=0&issue=12&msno=e10-081</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li> <li id="fn:4"><p>Cruzado-Caballero, Penélope; Xabier Pereda-Suberbiola; José Ignacio Ruiz-Omeñaca (2010). "Blasisaurus canudoi gen. et sp. nov., a new lambeosaurine dinosaur (Hadrosauridae) from the Latest Cretaceous of Arén (Huesca, Spain)". Canadian Journal of Earth Sciences. 47 (12): 1507–1517. Bibcode:2010CaJES..47.1507S. doi:10.1139/E10-081.[permanent dead link] <a href="http://rparticle.web-p.cisti.nrc.ca/rparticle/AbstractTemplateServlet?calyLang=eng&journal=cjes&volume=47&year=0&issue=12&msno=e10-081" target="_blank">http://rparticle.web-p.cisti.nrc.ca/rparticle/AbstractTemplateServlet?calyLang=eng&journal=cjes&volume=47&year=0&issue=12&msno=e10-081</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></p></li> <li id="fn:5"><p>Cruzado-Caballero, Penélope; Xabier Pereda-Suberbiola; José Ignacio Ruiz-Omeñaca (2010). "Blasisaurus canudoi gen. et sp. nov., a new lambeosaurine dinosaur (Hadrosauridae) from the Latest Cretaceous of Arén (Huesca, Spain)". Canadian Journal of Earth Sciences. 47 (12): 1507–1517. Bibcode:2010CaJES..47.1507S. doi:10.1139/E10-081.[permanent dead link] <a href="http://rparticle.web-p.cisti.nrc.ca/rparticle/AbstractTemplateServlet?calyLang=eng&journal=cjes&volume=47&year=0&issue=12&msno=e10-081" target="_blank">http://rparticle.web-p.cisti.nrc.ca/rparticle/AbstractTemplateServlet?calyLang=eng&journal=cjes&volume=47&year=0&issue=12&msno=e10-081</a> <a href="#fnref:5" class="footnote-back-ref">↩</a></p></li> <li id="fn:6"><p>Cruzado-Caballero, Penélope; Xabier Pereda-Suberbiola; José Ignacio Ruiz-Omeñaca (2010). "Blasisaurus canudoi gen. et sp. nov., a new lambeosaurine dinosaur (Hadrosauridae) from the Latest Cretaceous of Arén (Huesca, Spain)". Canadian Journal of Earth Sciences. 47 (12): 1507–1517. Bibcode:2010CaJES..47.1507S. doi:10.1139/E10-081.[permanent dead link] <a href="http://rparticle.web-p.cisti.nrc.ca/rparticle/AbstractTemplateServlet?calyLang=eng&journal=cjes&volume=47&year=0&issue=12&msno=e10-081" target="_blank">http://rparticle.web-p.cisti.nrc.ca/rparticle/AbstractTemplateServlet?calyLang=eng&journal=cjes&volume=47&year=0&issue=12&msno=e10-081</a> <a href="#fnref:6" class="footnote-back-ref">↩</a></p></li> <li id="fn:7"><p>Cruzado-Caballero, Penélope; Xabier Pereda-Suberbiola; José Ignacio Ruiz-Omeñaca (2010). "Blasisaurus canudoi gen. et sp. nov., a new lambeosaurine dinosaur (Hadrosauridae) from the Latest Cretaceous of Arén (Huesca, Spain)". Canadian Journal of Earth Sciences. 47 (12): 1507–1517. Bibcode:2010CaJES..47.1507S. doi:10.1139/E10-081.[permanent dead link] <a href="http://rparticle.web-p.cisti.nrc.ca/rparticle/AbstractTemplateServlet?calyLang=eng&journal=cjes&volume=47&year=0&issue=12&msno=e10-081" target="_blank">http://rparticle.web-p.cisti.nrc.ca/rparticle/AbstractTemplateServlet?calyLang=eng&journal=cjes&volume=47&year=0&issue=12&msno=e10-081</a> <a href="#fnref:7" class="footnote-back-ref">↩</a></p></li> <li id="fn:8"><p>Cruzado-Caballero, Penélope; Xabier Pereda-Suberbiola; José Ignacio Ruiz-Omeñaca (2010). "Blasisaurus canudoi gen. et sp. nov., a new lambeosaurine dinosaur (Hadrosauridae) from the Latest Cretaceous of Arén (Huesca, Spain)". Canadian Journal of Earth Sciences. 47 (12): 1507–1517. Bibcode:2010CaJES..47.1507S. doi:10.1139/E10-081.[permanent dead link] <a href="http://rparticle.web-p.cisti.nrc.ca/rparticle/AbstractTemplateServlet?calyLang=eng&journal=cjes&volume=47&year=0&issue=12&msno=e10-081" target="_blank">http://rparticle.web-p.cisti.nrc.ca/rparticle/AbstractTemplateServlet?calyLang=eng&journal=cjes&volume=47&year=0&issue=12&msno=e10-081</a> <a href="#fnref:8" class="footnote-back-ref">↩</a></p></li> <li id="fn:9"><p>Cruzado-Caballero, Penélope; Xabier Pereda-Suberbiola; José Ignacio Ruiz-Omeñaca (2010). "Blasisaurus canudoi gen. et sp. nov., a new lambeosaurine dinosaur (Hadrosauridae) from the Latest Cretaceous of Arén (Huesca, Spain)". Canadian Journal of Earth Sciences. 47 (12): 1507–1517. Bibcode:2010CaJES..47.1507S. doi:10.1139/E10-081.[permanent dead link] <a href="http://rparticle.web-p.cisti.nrc.ca/rparticle/AbstractTemplateServlet?calyLang=eng&journal=cjes&volume=47&year=0&issue=12&msno=e10-081" target="_blank">http://rparticle.web-p.cisti.nrc.ca/rparticle/AbstractTemplateServlet?calyLang=eng&journal=cjes&volume=47&year=0&issue=12&msno=e10-081</a> <a href="#fnref:9" class="footnote-back-ref">↩</a></p></li> <li id="fn:10"><p>Prieto-Márquez, A.; Dalla Vecchia, F. M.; Gaete, R.; Galobart, À. (2013). Dodson, Peter (ed.). "Diversity, Relationships, and Biogeography of the Lambeosaurine Dinosaurs from the European Archipelago, with Description of the New Aralosaurin Canardia garonnensis". PLOS ONE. 8 (7): e69835. Bibcode:2013PLoSO...869835P. doi:10.1371/journal.pone.0069835. PMC 3724916. PMID 23922815. <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3724916" target="_blank">https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3724916</a> <a href="#fnref:10" class="footnote-back-ref">↩</a></p></li> <li id="fn:11"><p>Cruzado-Caballero, Penélope; Xabier Pereda-Suberbiola; José Ignacio Ruiz-Omeñaca (2010). "Blasisaurus canudoi gen. et sp. nov., a new lambeosaurine dinosaur (Hadrosauridae) from the Latest Cretaceous of Arén (Huesca, Spain)". Canadian Journal of Earth Sciences. 47 (12): 1507–1517. Bibcode:2010CaJES..47.1507S. doi:10.1139/E10-081.[permanent dead link] <a href="http://rparticle.web-p.cisti.nrc.ca/rparticle/AbstractTemplateServlet?calyLang=eng&journal=cjes&volume=47&year=0&issue=12&msno=e10-081" target="_blank">http://rparticle.web-p.cisti.nrc.ca/rparticle/AbstractTemplateServlet?calyLang=eng&journal=cjes&volume=47&year=0&issue=12&msno=e10-081</a> <a href="#fnref:11" class="footnote-back-ref">↩</a></p></li> <li id="fn:12"><p>Cruzado-Caballero, P. L.; Canudo, J. I.; Moreno-Azanza, M.; Ruiz-Omeñaca, J. I. (2013). "New material and phylogenetic position of Arenysaurus ardevoli, a lambeosaurine dinosaur from the late Maastrichtian of Arén (northern Spain)". Journal of Vertebrate Paleontology. 33 (6): 1367–1384. Bibcode:2013JVPal..33.1367C. doi:10.1080/02724634.2013.772061. S2CID 86453373. <a href="http://rid.unrn.edu.ar/handle/20.500.12049/5515" target="_blank">http://rid.unrn.edu.ar/handle/20.500.12049/5515</a> <a href="#fnref:12" class="footnote-back-ref">↩</a></p></li> <li id="fn:13"><p>Cruzado-Caballero, P. L.; Canudo, J. I.; Moreno-Azanza, M.; Ruiz-Omeñaca, J. I. (2013). "New material and phylogenetic position of Arenysaurus ardevoli, a lambeosaurine dinosaur from the late Maastrichtian of Arén (northern Spain)". Journal of Vertebrate Paleontology. 33 (6): 1367–1384. Bibcode:2013JVPal..33.1367C. doi:10.1080/02724634.2013.772061. S2CID 86453373. <a href="http://rid.unrn.edu.ar/handle/20.500.12049/5515" target="_blank">http://rid.unrn.edu.ar/handle/20.500.12049/5515</a> <a href="#fnref:13" class="footnote-back-ref">↩</a></p></li> </ol>