Search Results - "O'CONNOR, JINGMAI K."

New specimens of Yanornis indicate a piscivorous diet and modern alimentary canal by Zheng, Xiaoting, O'Connor, Jingmai K, Huchzermeyer, Fritz, Wang, Xiaoli, Wang, Yan, Zhang, Xiaomei, Zhou, Zhonghe

“…A crop adapted for an herbivorous diet of seeds has previously been documented in the Early Cretaceous birds Sapeornis and Hongshanornis. Here we report on…”
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Insight into the evolutionary assemblage of cranial kinesis from a Cretaceous bird by Wang, Min, Stidham, Thomas A, O'Connor, Jingmai K, Zhou, Zhonghe

“…The independent movements and flexibility of various parts of the skull, called cranial kinesis, are an evolutionary innovation that is found in living…”
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A New Robust Enantiornithine Bird from the Lower Cretaceous of China with Scansorial Adaptations by Wang, Min, O'Connor, Jingmai K, Zhou, Zhonghe

“…We describe a new enantiornithine bird, Fortunguavis xiaotaizicus, gen. et sp. nov, from the Lower Cretaceous lacustrine deposits of the Jiufotang Formation in…”
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Earliest evidence for fruit consumption and potential seed dispersal by birds by Hu, Han, Wang, Yan, McDonald, Paul G, Wroe, Stephen, O'Connor, Jingmai K, Bjarnason, Alexander, Bevitt, Joseph J, Yin, Xuwei, Zheng, Xiaoting, Zhou, Zhonghe, Benson, Roger BJ

“…The Early Cretaceous diversification of birds was a major event in the history of terrestrial ecosystems, occurring during the earliest phase of the Cretaceous…”
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Exceptional preservation of soft tissue in a new specimen of Eoconfuciusornis and its biological implications by Zheng, Xiaoting, O’Connor, Jingmai K., Wang, Xiaoli, Pan, Yanhong, Wang, Yan, Wang, Min, Zhou, Zhonghe

“…Abstract We report on an exceptional specimen of Eoconfuciusornis preserving rare soft-tissue traces of the ovary and wing. Ovarian follicles preserve a…”
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Previously unrecognized ornithuromorph bird diversity in the Early Cretaceous Changma Basin, Gansu Province, northwestern China by Wang, Ya-Ming, O'Connor, Jingmai K, Li, Da-Qing, You, Hai-Lu

“…Here we report on three new species of ornithuromorph birds from the Lower Cretaceous Xiagou Formation in the Changma Basin of Gansu Province, northwestern…”
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New information on postcranial skeleton of the Early Cretaceous Gansus yumenensis (Aves: Ornithuromorpha) by Wang, Ya-Ming, O'Connor, Jingmai K., Li, Da-Qing, You, Hai-Lu

“…Gansus yumenensis Hou and Liu, 1984 is a basal ornithuromorph bird that has been recovered from the Lower Cretaceous Xiagou Formation in the Changma Basin of…”
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A New Ornithuromorph (Aves: Ornithothoraces) Bird from the Jehol Group Indicative of Higher-Level Diversity by O'Connor, Jingmai K, Gao, Ke-Qin, Chiappe, Luis M

“…Basal Ornithuromorpha, until recently, was one of the most poorly documented segments of early avian evolution. The known species diversity of the…”
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The evolution of the modern avian digestive system: insights from paravian fossils from the Yanliao and Jehol biotas by O'Connor, Jingmai K., Zhou, Zhonghe, Smith, Andrew

“…The avian digestive system, like other aspects of avian biology, is highly modified relative to other reptiles. Together these modifications have imparted the…”
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The Origin and Diversification of Birds by Brusatte, Stephen L., O’Connor, Jingmai K., Jarvis, Erich D.

“…Birds are one of the most recognizable and diverse groups of modern vertebrates. Over the past two decades, a wealth of new fossil discoveries and phylogenetic…”
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Functional constraints on the number and shape of flight feathers by Kiat, Yosef, O'Connor, Jingmai K

“…As a fundamental ecological aspect of most organisms, locomotor function significantly constrains morphology. At the same time, the evolution of novel…”
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A NEW BASAL LINEAGE OF EARLY CRETACEOUS BIRDS FROM CHINA AND ITS IMPLICATIONS ON THE EVOLUTION OF THE AVIAN TAIL by GAO, CHUNLING, CHIAPPE, LUIS M., MENG, QINJING, O’CONNOR, JINGMAI K., WANG, XURI, CHENG, XIAODONG, LIU, JINYUAN

“…:  We report on a new Early Cretaceous bird from China that sheds significant light on the evolutionary transition between primitive birds with a long bony…”
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The evolutionary and functional implications of the unusual quadrate of Longipteryx chaoyangensis (Avialae: Enantiornithes) from the Cretaceous Jehol Biota of China by Stidham, Thomas A., O'Connor, Jingmai K.

“…While the morphology and evolution of the quadrate among early birds and through the evolutionary origin of birds is not well known, we add to knowledge about…”
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A new species of pengornithidae (aves: enantiornithes) from the lower cretaceous of China suggests a specialized scansorial habitat previously unknown in early birds by Hu, Han, O'Connor, Jingmai K, Zhou, Zhonghe

“…We describe a new enantiornithine bird, Parapengornis eurycaudatus gen. et sp. nov. from the Lower Cretaceous Jiufotang Formation of Liaoning, China. Although…”
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The Late Cretaceous eutherian Zalambdalestes reveals unique axis and complex evolution of the mammalian neck by Arnold, Patrick, Janiszewska, Katarzyna, Li, Qian, O'Connor, Jingmai K., Fostowicz-Frelik, Łucja

“…[Display omitted] The typical mammalian neck consisting of seven cervical vertebrae (C1–C7) was established by the Late Permian in the cynodont forerunners of…”
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A new Jurassic scansoriopterygid and the loss of membranous wings in theropod dinosaurs by Wang, Min, O’Connor, Jingmai K., Xu, Xing, Zhou, Zhonghe

“…Powered flight evolved independently in vertebrates in the pterosaurs, birds and bats, each of which has a different configuration of the bony elements and…”
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New enantiornithine diversity in the Hell Creek Formation and the functional morphology of the avisaurid tarsometatarsus by Clark, Alexander D, Atterholt, Jessie, Scannella, John B, Carroll, Nathan, O'Connor, Jingmai K

“…Enantiornithines were the most diverse group of birds during the Cretaceous, comprising over half of all known species from this period. The fossil record and…”
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Quantifying the gastral mass in Early Cretaceous ornithuromorphs (Aves, Ornithothoraces) from the Jehol avifauna by Liu, Shumin, Li, Zhiheng, Liu, Di, O'Connor, Jingmai K.

“…Abstract Some birds intentionally ingest stones to facilitate digestion of hard foodstuffs, a behaviour inherited from non‐avian dinosaurs and present in some…”
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Insights into the evolution of rachis dominated tail feathers from a new basal enantiornithine (Aves: Ornithothoraces) by Wang, Xiaoli, O'Connor, Jingmai K, Zheng, Xiaoting, Wang, Min, Hu, Han, Zhou, Zhonghe

“…We report on a new enantiornithine Eopengornis martini gen. et sp. nov. from the lowest horizon of the Jehol Biota in Hebei, China; dated at 130.7 Mya, this is…”
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An Early Cretaceous enantiornithine bird with a pintail by Wang, Min, O’Connor, Jingmai K., Zhao, Tao, Pan, Yanhong, Zheng, Xiaoting, Wang, Xiaoli, Zhou, Zhonghe

“…Enantiornithes are the most successful group of Mesozoic birds, arguably representing the first global avian radiation,1–4 and commonly resolved as the sister…”
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