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Cranial and dental morphology in a bohaiornithid enantiornithine with information on its tooth replacement pattern
Liu, Di1,2,6; Chiappe, L. M.3; Wu, Becky3,4; Meng, Qingjin2; Zhang, Yuguang2; Qiu, Rui2; Xing, Hai2,5; Zeng, Zhaohui2
2022
Source PublicationCRETACEOUS RESEARCH
ISSN0195-6671
Volume129Pages:18
Abstract

Despite the abundant number of enantiornithine fossils from the Jehol Biota, the cranial anatomy of these birds remains only superficially known. Similarly, data on dental replacement within this clade, and among toothed birds in general, is largely lacking. Here we describe a new and exquisitely preserved specimen of a bohaiornithid enantiornithine from the Lower Cretaceous Jiufotang Formation in Liaoning Province, northeastern China. The new specimen provides novel information on the cranial anatomy of these birds and unprecedented data on their tooth resorption, implantation, and replacement pattern, mostly visualized through computed laminography (CL) images. The new information demonstrates the presence of alternating tooth replacement with symmetrical signaling control, a pattern that is possibly shared by other enantiornithines. We also test the monophyly of Bohaiornithidae, one of the most species-rich groups of Jehol enantiornithines, through the addition of the new specimen. While our phylogenetic results support a monophyletic clade composed of several taxa traditionally included in this group (i.e., Bohaiornis, Sulcavis, Zhouornis, Longusunguis, and Parabohaiornis), it excludes Shenqiornis mengi, a species used to phylogenetically defined Bohaiornithidae. The fact that Shenqiornis is not resolved among the above-mentioned clade raises concerns about the usage of Bohaiornthidae as originally defined (i.e., most recent common ancestor of Shenqiornis mengi and Bohaiornis guoi, and all its descendants). (c) 2021 Elsevier Ltd. All rights reserved.

KeywordJehol Biota Enantiornithines Bohaiornithidae Cranial anatomy Dental replacement
DOI10.1016/j.cretres.2021.105021
Indexed BySCI
Language英语
WOS KeywordAVES ORNITHOTHORACES ; BIRD ; CHINA ; EVOLUTION ; SPECIMEN ; SKULL ; NOV.
WOS Research AreaGeology ; Paleontology
WOS SubjectGeology ; Paleontology
WOS IDWOS:000709906500004
PublisherACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/40043
Collection中国科学院南京地质古生物研究所
Corresponding AuthorLiu, Di; Chiappe, L. M.
Affiliation1.Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origins, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China
2.Beijing Museum Nat Hist, 126 Tianqiao South St, Beijing 100050, Peoples R China
3.Nat Hist Museum Los Angeles Cty, Dinosaur Inst, 900 Exposit Blvd, Los Angeles, CA 90007 USA
4.Univ Southern Calif, Dept Earth Sci, Los Angeles, CA 90007 USA
5.Chinese Acad Sci, State Key Lab Palaeobiol & Stratig, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China
6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Liu, Di,Chiappe, L. M.,Wu, Becky,et al. Cranial and dental morphology in a bohaiornithid enantiornithine with information on its tooth replacement pattern[J]. CRETACEOUS RESEARCH,2022,129:18.
APA Liu, Di.,Chiappe, L. M..,Wu, Becky.,Meng, Qingjin.,Zhang, Yuguang.,...&Zeng, Zhaohui.(2022).Cranial and dental morphology in a bohaiornithid enantiornithine with information on its tooth replacement pattern.CRETACEOUS RESEARCH,129,18.
MLA Liu, Di,et al."Cranial and dental morphology in a bohaiornithid enantiornithine with information on its tooth replacement pattern".CRETACEOUS RESEARCH 129(2022):18.
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