[dinosaur] Baby ornithopod fossils from high latitudes of Cretaceous Australia (free pdf)
Ben Creisler <[email protected]> Fri, 20 Dec 2019 08:42:00 -0800
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--0000000000002a169a059a255cb1 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: Quoted-printable Ben [email protected]=0A=0AA new paper with free pdf:=0A=0AJus= tin L. Kitchener, Nicol=C3=A1s E. Campione, Elizabeth T. Smith & Phil R. Be= ll=0A(2019)=0AHigh-latitude neonate and perinate ornithopods from the mid-C= retaceous of=0Asoutheastern Australia.=0AScientific Reports 9, Article numb= er: 19600=0Adoi: https://urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__doi= .org_10.1038_s41598-2D019-2D56069-2D8&d=3DDwIFaQ&c=3DclK7kQUTWtAVEOVIgvi0NU= 5BOUHhpN0H8p7CSfnc_gI&r=3DRy_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=3DW= Rm0wmRj2zYBiyweDtfAa-hfjI5zDgSvxIQ2eKOCEos&s=3D68_h4RdtPgBTy4LGysZBl1_MReK5= M2iNlmx5ht1volI&e=3D=20=0Ahttps://urldefense.proofpoint.com/v2/url?u=3Dhttp= s-3A__www.nature.com_articles_s41598-2D019-2D56069-2D8&d=3DDwIFaQ&c=3DclK7k= QUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=3DRy_mO4IFaUmGof_Yl9MyZgecRCKHn5g4= z1CYJgFW9SI&m=3DWRm0wmRj2zYBiyweDtfAa-hfjI5zDgSvxIQ2eKOCEos&s=3D4mZUhhgD7Ma= FKueppcMo5cTJ2cXKEjBn63OpN6RK0PA&e=3D=20=0A=0AFree pdf:=0Ahttps://urldefens= e.proofpoint.com/v2/url?u=3Dhttps-3A__www.nature.com_articles_s41598-2D019-= 2D56069-2D8.pdf&d=3DDwIFaQ&c=3DclK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&= r=3DRy_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=3DWRm0wmRj2zYBiyweDtfAa-h= fjI5zDgSvxIQ2eKOCEos&s=3DXP5DY6Ir0-Xu3o7ZG2zLpn9BHLXxgMNDCulWXNGyb-M&e=3D= =20=0A=0A=0ADinosaurs were remarkably climate-tolerant, thriving from equat= orial to=0Apolar latitudes. High-paleolatitude eggshells and hatchling mate= rial from=0Athe Northern Hemisphere confirms that hadrosaurid ornithopods r= eproduced in=0Apolar regions. Similar examples are lacking from Gondwanan l= andmasses. Here=0Awe describe two non-iguanodontian ornithopod femora from = the Griman Creek=0AFormation (Cenomanian) in New South Wales, Australia. Th= ese incomplete=0Aproximal femora represent the first perinatal ornithopods = described from=0AAustralia, supplementing neonatal and slightly older =E2= =80=98yearling=E2=80=99 specimens=0Afrom the Aptian=E2=80=93Albian Eumerall= a and Wonthaggi formations in Victoria.=0AWhile pseudomorphic preservation = obviates histological examination,=0Aanatomical and size comparisons with V= ictorian specimens, which underwent=0Aprevious histological work, support p= erinatal interpretations for the=0AGriman Creek Formation femora. Estimated= femoral lengths (37 mm and 45 mm)=0Aand body masses (113=E2=80=93191 g and= 140=E2=80=93236 g), together with the limited=0Adevelopment of features in= the smallest femur, suggest a possible embryonic=0Astate. Low body masses = (<1 kg for =E2=80=98yearlings=E2=80=99 and ~20 kg at maturity) would=0Ahave= precluded small ornithopods from long-distance migration, even as=0Aadults= , in the Griman Creek, Eumeralla, and Wonthaggi formations.=0AConsequently,= these specimens support high-latitudinal breeding in a=0Anon-iguanodontian= ornithopod in eastern Gondwana during the early Late=0ACretaceous.=0A=0A= =3D=3D=3D=0A=0ANews:=0A=0Ahttps://urldefense.proofpoint.com/v2/url?u=3Dhttp= s-3A__phys.org_news_2019-2D12-2Dbaby-2Ddinosaurs-2Daustralia.html&d=3DDwIFa= Q&c=3DclK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=3DRy_mO4IFaUmGof_Yl9MyZ= gecRCKHn5g4z1CYJgFW9SI&m=3DWRm0wmRj2zYBiyweDtfAa-hfjI5zDgSvxIQ2eKOCEos&s=3D= TT2uQKKUO30UT1RJGYyDKaD7oJxAYZpYwLxcbrrQwBo&e=3D=20=0A=0Ahttps://urldefense= .proofpoint.com/v2/url?u=3Dhttps-3A__cosmosmagazine.com_palaeontology_tiny-= 2Dfossils-2Dare-2Dfirst-2Dknown-2Dbaby-2Ddinosaurs-2Dfrom-2Daustralia&d=3DD= wIFaQ&c=3DclK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=3DRy_mO4IFaUmGof_Yl= 9MyZgecRCKHn5g4z1CYJgFW9SI&m=3DWRm0wmRj2zYBiyweDtfAa-hfjI5zDgSvxIQ2eKOCEos&= s=3D0e8K-CP5QDU_Em67luLcpqXFtHlxBD2RCJdmfPoBCw8&e=3D=20=0A= --0000000000002a169a059a255cb1 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: Quoted-printable <div dir=3D"ltr"><br><div>Ben Creisler</div><div><a href=3D"mailto:bcreisle= [email protected]">[email protected]</a></div><div><br></div><div>A new paper w= ith free pdf:</div><div><br></div><div>Justin L. Kitchener, Nicol=C3=A1s E.= Campione, Elizabeth T. Smith & Phil R. Bell (2019)<br>High-latitude ne= onate and perinate ornithopods from the mid-Cretaceous of southeastern Aust= ralia.<br>Scientific Reports 9, Article number: 19600<br>doi: <a href=3D"ht= tps://urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__doi.org_10.1038_s41598= -2D019-2D56069-2D8&d=3DDwMFaQ&c=3DclK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8= p7CSfnc_gI&r=3DRy_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=3DWRm0= wmRj2zYBiyweDtfAa-hfjI5zDgSvxIQ2eKOCEos&s=3D68_h4RdtPgBTy4LGysZBl1_MReK= 5M2iNlmx5ht1volI&e=3D">https://doi.org/10.1038/s41598-019-56069-8</a><b= r><a href=3D"https://urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__www.nat= ure.com_articles_s41598-2D019-2D56069-2D8&d=3DDwMFaQ&c=3DclK7kQUTWt= AVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=3DRy_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z= 1CYJgFW9SI&m=3DWRm0wmRj2zYBiyweDtfAa-hfjI5zDgSvxIQ2eKOCEos&s=3D4mZU= hhgD7MaFKueppcMo5cTJ2cXKEjBn63OpN6RK0PA&e=3D">https://www.nature.com/ar= ticles/s41598-019-56069-8</a></div><div><br>Free pdf:<br><a href=3D"https:/= /urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__www.nature.com_articles_s41= 598-2D019-2D56069-2D8.pdf&d=3DDwMFaQ&c=3DclK7kQUTWtAVEOVIgvi0NU5BOU= HhpN0H8p7CSfnc_gI&r=3DRy_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m= =3DWRm0wmRj2zYBiyweDtfAa-hfjI5zDgSvxIQ2eKOCEos&s=3DXP5DY6Ir0-Xu3o7ZG2zL= pn9BHLXxgMNDCulWXNGyb-M&e=3D">https://www.nature.com/articles/s41598-01= 9-56069-8.pdf</a></div><div><br><br>Dinosaurs were remarkably climate-toler= ant, thriving from equatorial to polar latitudes. High-paleolatitude eggshe= lls and hatchling material from the Northern Hemisphere confirms that hadro= saurid ornithopods reproduced in polar regions. Similar examples are lackin= g from Gondwanan landmasses. Here we describe two non-iguanodontian ornitho= pod femora from the Griman Creek Formation (Cenomanian) in New South Wales,= Australia. These incomplete proximal femora represent the first perinatal = ornithopods described from Australia, supplementing neonatal and slightly o= lder =E2=80=98yearling=E2=80=99 specimens from the Aptian=E2=80=93Albian Eu= meralla and Wonthaggi formations in Victoria. While pseudomorphic preservat= ion obviates histological examination, anatomical and size comparisons with= Victorian specimens, which underwent previous histological work, support p= erinatal interpretations for the Griman Creek Formation femora. Estimated f= emoral lengths (37=E2=80=89mm and 45=E2=80=89mm) and body masses (113=E2=80= =93191=E2=80=89g and 140=E2=80=93236=E2=80=89g), together with the limited = development of features in the smallest femur, suggest a possible embryonic= state. Low body masses (<1=E2=80=89kg for =E2=80=98yearlings=E2=80=99 a= nd ~20=E2=80=89kg at maturity) would have precluded small ornithopods from = long-distance migration, even as adults, in the Griman Creek, Eumeralla, an= d Wonthaggi formations. Consequently, these specimens support high-latitudi= nal breeding in a non-iguanodontian ornithopod in eastern Gondwana during t= he early Late Cretaceous.<br></div><div><br></div><div>=3D=3D=3D</div><div>= <br></div><div>News:<br><br><a href=3D"https://urldefense.proofpoint.com/v2= /url?u=3Dhttps-3A__phys.org_news_2019-2D12-2Dbaby-2Ddinosaurs-2Daustralia.h= tml&d=3DDwMFaQ&c=3DclK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&= r=3DRy_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=3DWRm0wmRj2zYBiyweDtf= Aa-hfjI5zDgSvxIQ2eKOCEos&s=3DTT2uQKKUO30UT1RJGYyDKaD7oJxAYZpYwLxcbrrQwB= o&e=3D">https://phys.org/news/2019-12-baby-dinosaurs-australia.html</a>= </div><div><br><a href=3D"https://urldefense.proofpoint.com/v2/url?u=3Dhttp= s-3A__cosmosmagazine.com_palaeontology_tiny-2Dfossils-2Dare-2Dfirst-2Dknown= -2Dbaby-2Ddinosaurs-2Dfrom-2Daustralia&d=3DDwMFaQ&c=3DclK7kQUTWtAVE= OVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=3DRy_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CY= JgFW9SI&m=3DWRm0wmRj2zYBiyweDtfAa-hfjI5zDgSvxIQ2eKOCEos&s=3D0e8K-CP= 5QDU_Em67luLcpqXFtHlxBD2RCJdmfPoBCw8&e=3D">https://cosmosmagazine.com/p= alaeontology/tiny-fossils-are-first-known-baby-dinosaurs-from-australia</a>= <br></div></div>=0A= --0000000000002a169a059a255cb1--