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Citation for Study 13139

About Citation title: "A new sapeornithid bird from China and its implications for early avian evolution.".
About Study name: "A new sapeornithid bird from China and its implications for early avian evolution.".
About This study is part of submission 13139 (Status: Published).

Citation

Hu D., Li L., Hou L., & Xu X. 2010. A new sapeornithid bird from China and its implications for early avian evolution. Acta Geologica Sinica, 84: 472-482.

Authors

  • Hu D.
  • Li L.
  • Hou L.
  • Xu X.

Abstract

Recent discoveries of basal birds have greatly improved our understanding of early bird evolution, yet the evolution of several important features such as cranial kinesis and arboreality remain debated. A new sapeornithid bird, Shenshiornis primita gen. et sp. nov., based on an articulated skeleton from the Early Cretaceous Jehol Group of western Liaoning, China, sheds new light on these issues. Shenshiornis possesses a skull as primitive as or even more primitive than that of Archaeopteryx and hind limbs modified for an improved arboreal capability. A cladistic analysis shows that: 1) presence of a diapsid skull is a plesiomorphy of the Aves and a kinetic skull evolved incrementally later in avian evolution; and 2) cursorial capability significantly weakens at the base of the Pygostylia due to a change in locomotor system.

Keywords

basal bird, Cranial kinetism, locomotor systems, sapeornithid, Shenshiornis primita, Early Cretaceous, Liaoning

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About this resource

  • Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S13139
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