@ARTICLE{TreeBASE2Ref20976,
author = {Dongyu Hu and Xing Xu and Lianhai Hou and Corwin Sullivan},
title = {A new enantiornithine bird from the Lower Cretaceous of Western Liaoning, China, and its implications for early avian evolution},
year = {2012},
keywords = {},
doi = {10.1080/02724634.2012.652321},
url = {http://www.graemetlloyd.com/matr.html},
pmid = {},
journal = {Journal of Vertebrate Paleontology},
volume = {32},
number = {3},
pages = {639--645},
abstract = {Recent studies have blurred the distinctness of two major avian groups: the Enantiornithes, amajor radiation of early birds in the Cretaceous, and the Ornithuromorpha, the clade including extant birds. Here we describe a new enantiornithine bird from the Lower Cretaceous Jiufotang Formation of western Liaoning, China, Xiangornis shenmi, gen. et sp. nov., which further reduces the morphological gap between the two groups. Xiangornis shenmi has several enantiornithine features, including a furcula with a significantly elongated hypocleidium, a coracoid with a convex lateral margin, and a minor metacarpal that extends further distally than the major metacarpal. However, it also possesses some derived ornithurine features, such as a short alular metacarpal (about one-sixth as long as the major metacarpal) that is completely fused to the majormetacarpal, a large extensor process on the alularmetacarpal, proximal and distal fusion between the minor and major metacarpals, and an inter metacarpal space positioned significantly distal to the alular metacarpal. This new find indicates that a carpometacarpal morphology similar to that seen in modern birds probably evolved independently in enantiornithines and appeared earlier than in Ornithuromorpha, and demonstrates that character evolution in early birds was more complex than previously believed.}
}
Citation for Study 12997
Citation title:
"A new enantiornithine bird from the Lower Cretaceous of Western Liaoning, China, and its implications for early avian evolution".
Study name:
"A new enantiornithine bird from the Lower Cretaceous of Western Liaoning, China, and its implications for early avian evolution".
This study is part of submission 12997
(Status: Published).
Citation
Hu D., Xu X., Hou L., & Sullivan C. 2012. A new enantiornithine bird from the Lower Cretaceous of Western Liaoning, China, and its implications for early avian evolution. Journal of Vertebrate Paleontology, 32(3): 639-645.
Authors
-
Hu D.
-
Xu X.
-
Hou L.
-
Sullivan C.
Abstract
Recent studies have blurred the distinctness of two major avian groups: the Enantiornithes, amajor radiation of early birds in the Cretaceous, and the Ornithuromorpha, the clade including extant birds. Here we describe a new enantiornithine bird from the Lower Cretaceous Jiufotang Formation of western Liaoning, China, Xiangornis shenmi, gen. et sp. nov., which further reduces the morphological gap between the two groups. Xiangornis shenmi has several enantiornithine features, including a furcula with a significantly elongated hypocleidium, a coracoid with a convex lateral margin, and a minor metacarpal that extends further distally than the major metacarpal. However, it also possesses some derived ornithurine features, such as a short alular metacarpal (about one-sixth as long as the major metacarpal) that is completely fused to the majormetacarpal, a large extensor process on the alularmetacarpal, proximal and distal fusion between the minor and major metacarpals, and an inter metacarpal space positioned significantly distal to the alular metacarpal. This new find indicates that a carpometacarpal morphology similar to that seen in modern birds probably evolved independently in enantiornithines and appeared earlier than in Ornithuromorpha, and demonstrates that character evolution in early birds was more complex than previously believed.
External links
About this resource
- Canonical resource URI:
http://purl.org/phylo/treebase/phylows/study/TB2:S12997
- Other versions:
Nexus
NeXML
- Show BibTeX reference
@ARTICLE{TreeBASE2Ref20976,
author = {Dongyu Hu and Xing Xu and Lianhai Hou and Corwin Sullivan},
title = {A new enantiornithine bird from the Lower Cretaceous of Western Liaoning, China, and its implications for early avian evolution},
year = {2012},
keywords = {},
doi = {10.1080/02724634.2012.652321},
url = {http://www.graemetlloyd.com/matr.html},
pmid = {},
journal = {Journal of Vertebrate Paleontology},
volume = {32},
number = {3},
pages = {639--645},
abstract = {Recent studies have blurred the distinctness of two major avian groups: the Enantiornithes, amajor radiation of early birds in the Cretaceous, and the Ornithuromorpha, the clade including extant birds. Here we describe a new enantiornithine bird from the Lower Cretaceous Jiufotang Formation of western Liaoning, China, Xiangornis shenmi, gen. et sp. nov., which further reduces the morphological gap between the two groups. Xiangornis shenmi has several enantiornithine features, including a furcula with a significantly elongated hypocleidium, a coracoid with a convex lateral margin, and a minor metacarpal that extends further distally than the major metacarpal. However, it also possesses some derived ornithurine features, such as a short alular metacarpal (about one-sixth as long as the major metacarpal) that is completely fused to the majormetacarpal, a large extensor process on the alularmetacarpal, proximal and distal fusion between the minor and major metacarpals, and an inter metacarpal space positioned significantly distal to the alular metacarpal. This new find indicates that a carpometacarpal morphology similar to that seen in modern birds probably evolved independently in enantiornithines and appeared earlier than in Ornithuromorpha, and demonstrates that character evolution in early birds was more complex than previously believed.}
}
- Show RIS reference
TY - JOUR
ID - 20976
AU - Hu,Dongyu
AU - Xu,Xing
AU - Hou,Lianhai
AU - Sullivan,Corwin
T1 - A new enantiornithine bird from the Lower Cretaceous of Western Liaoning, China, and its implications for early avian evolution
PY - 2012
KW -
UR - http://www.graemetlloyd.com/matr.html
N2 - Recent studies have blurred the distinctness of two major avian groups: the Enantiornithes, amajor radiation of early birds in the Cretaceous, and the Ornithuromorpha, the clade including extant birds. Here we describe a new enantiornithine bird from the Lower Cretaceous Jiufotang Formation of western Liaoning, China, Xiangornis shenmi, gen. et sp. nov., which further reduces the morphological gap between the two groups. Xiangornis shenmi has several enantiornithine features, including a furcula with a significantly elongated hypocleidium, a coracoid with a convex lateral margin, and a minor metacarpal that extends further distally than the major metacarpal. However, it also possesses some derived ornithurine features, such as a short alular metacarpal (about one-sixth as long as the major metacarpal) that is completely fused to the majormetacarpal, a large extensor process on the alularmetacarpal, proximal and distal fusion between the minor and major metacarpals, and an inter metacarpal space positioned significantly distal to the alular metacarpal. This new find indicates that a carpometacarpal morphology similar to that seen in modern birds probably evolved independently in enantiornithines and appeared earlier than in Ornithuromorpha, and demonstrates that character evolution in early birds was more complex than previously believed.
L3 - 10.1080/02724634.2012.652321
JF - Journal of Vertebrate Paleontology
VL - 32
IS - 3
SP - 639
EP - 645
ER -