典型文献
Scales in the Early Cretaceous bird Gansus from China provide evidence on the evolution of avian scales
文献摘要：
Most modern birds have scales covering feet,but our knowledge of early avian scales is limited,mainly due to their scarcity in the fossil record.Here we describe the morphological details of scutellate and interstitial scales preserved in IVPP V15077,a specimen of the Early Cretaceous bird Gansus from the Changma Basin in northwestern Gansu Province,Northwest China.These results,combined with previous reports of scutate and reticulate scales,show that all four types of scales present in modern birds already appeared in the Early Cretaceous.The phylogenetic distribution of skin appendages of feet,including feathers and scales,shows that non-avian dinosaurs already evolved scales resembling those in modern birds,and that scales can coexist with feathers on feet,suggesting that avian scales may be homologue with scales of non-avian di-nosaurs.However,to further test this hypothesis,more research combined with a strengthened focus on detecting specimens with soft tissue preservation is necessary.
文献关键词：
中图分类号：
作者姓名：
Tao Zhao;Zhi-Heng Li;He Zhang;Yan-Hong Pan
作者机构：
State Key Laboratory for Mineral Deposits Research,School of Earth Sciences and Engineering,Centre for Research and Education on Biological Evolution and Environment and Frontiers Science,Center for Critical Earth Material Cycling,Nanjing University,Nanjing 210023,Jiangsu Province,China;Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences,Institute of Vertebrate Paleontology and Paleoanthropology,Chinese Academy of Sciences,Beijing 100044,China;CAS Center for Excellence in Life and Paleoenvironment,Chinese Academy of Sciences,Beijing 100044,China
文献出处：
引用格式：
[1]Tao Zhao;Zhi-Heng Li;He Zhang;Yan-Hong Pan-.Scales in the Early Cretaceous bird Gansus from China provide evidence on the evolution of avian scales)[J].古地理学报（英文版）,2022(04):640-652
A类：
Gansus,scutellate,IVPP,V15077,scutate,nosaurs
B类：
Scales,Early,Cretaceous,from,China,provide,evidence,evolution,avian,scales,Most,modern,birds,have,covering,feet,knowledge,early,limited,mainly,due,their,scarcity,fossil,record,Here,describe,morphological,details,interstitial,preserved,Changma,Basin,northwestern,Province,Northwest,These,results,combined,previous,reports,reticulate,that,all,four,types,present,already,appeared,phylogenetic,distribution,skin,appendages,including,feathers,shows,dinosaurs,evolved,resembling,those,can,coexist,suggesting,may,homologue,However,further,test,this,hypothesis,more,research,strengthened,focus,detecting,specimens,soft,tissue,preservation,necessary
AB值：
0.512531
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机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
