北美植物龙的牙釉质微结构:一个晚三叠世鳄鱼类食肉动物分支的生物地理学和生态学意义

IF 2 4区 地球科学 Q1 Earth and Planetary Sciences Palaeontologia Electronica Pub Date : 2021-01-01 DOI:10.26879/1162
Devin K. Hoffman, Jess Miller-Camp, A. Heckert
{"title":"北美植物龙的牙釉质微结构:一个晚三叠世鳄鱼类食肉动物分支的生物地理学和生态学意义","authors":"Devin K. Hoffman, Jess Miller-Camp, A. Heckert","doi":"10.26879/1162","DOIUrl":null,"url":null,"abstract":"Teeth can provide important insight into diet and evolution of extinct vertebrates. Tooth enamel microstructure records functional and phylogenetic signals beyond the gross morphology of the dentition. Here , we provide the first systematic sampling of phytosaur tooth enamel to address questions of intra-and interspecific variation, and thus taxonomic identification, biogeographic connectivity, and heterodonty. We sampled 23 phytosaur teeth from five localities throughout the American Southwest and one locality from the Newark Supergroup of North Carolina. These teeth probably represent five heterodont genera and are tentatively assigned to Angistorhinus, Smilosu-chus, Machaeroprosopus, Redondasaurus, and “Rutiodon” . We used scanning electron microscopy to examine their enamel microstructure from transverse, longitudinal, and tangential cross-sections. All sampled teeth are composed of columnar enamel ranging in thickness from 20 to 150 µm, typically 50–100 µm, across all","PeriodicalId":56100,"journal":{"name":"Palaeontologia Electronica","volume":"1 1","pages":""},"PeriodicalIF":2.0000,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"Tooth enamel microstructure in North American Phytosauria (Diapsida:Archosauriformes): Implications for biogeography and ecology of a Late Triassic clade of crocodylian-like predators\",\"authors\":\"Devin K. Hoffman, Jess Miller-Camp, A. Heckert\",\"doi\":\"10.26879/1162\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Teeth can provide important insight into diet and evolution of extinct vertebrates. Tooth enamel microstructure records functional and phylogenetic signals beyond the gross morphology of the dentition. Here , we provide the first systematic sampling of phytosaur tooth enamel to address questions of intra-and interspecific variation, and thus taxonomic identification, biogeographic connectivity, and heterodonty. We sampled 23 phytosaur teeth from five localities throughout the American Southwest and one locality from the Newark Supergroup of North Carolina. These teeth probably represent five heterodont genera and are tentatively assigned to Angistorhinus, Smilosu-chus, Machaeroprosopus, Redondasaurus, and “Rutiodon” . We used scanning electron microscopy to examine their enamel microstructure from transverse, longitudinal, and tangential cross-sections. All sampled teeth are composed of columnar enamel ranging in thickness from 20 to 150 µm, typically 50–100 µm, across all\",\"PeriodicalId\":56100,\"journal\":{\"name\":\"Palaeontologia Electronica\",\"volume\":\"1 1\",\"pages\":\"\"},\"PeriodicalIF\":2.0000,\"publicationDate\":\"2021-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Palaeontologia Electronica\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://doi.org/10.26879/1162\",\"RegionNum\":4,\"RegionCategory\":\"地球科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"Earth and Planetary Sciences\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Palaeontologia Electronica","FirstCategoryId":"89","ListUrlMain":"https://doi.org/10.26879/1162","RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"Earth and Planetary Sciences","Score":null,"Total":0}
引用次数: 3

摘要

牙齿可以为了解已灭绝脊椎动物的饮食和进化提供重要的信息。牙釉质微观结构记录了牙列大体形态之外的功能和系统发育信号。在这里,我们提供了植物龙牙釉质的第一个系统采样,以解决种内和种间变异的问题,从而分类鉴定,生物地理连通性和异源性。我们从美国西南部的五个地方和北卡罗来纳州纽瓦克超级群的一个地方取样了23颗植龙牙齿。这些牙齿可能代表5个异齿属,初步归属于Angistorhinus、Smilosu-chus、Machaeroprosopus、Redondasaurus和Rutiodon。我们用扫描电子显微镜从横向、纵向和切向的横截面上观察他们的牙釉质微观结构。所有取样的牙齿都由柱状牙釉质组成,厚度从20到150微米不等,通常为50-100微米
本文章由计算机程序翻译,如有差异,请以英文原文为准。
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
Tooth enamel microstructure in North American Phytosauria (Diapsida:Archosauriformes): Implications for biogeography and ecology of a Late Triassic clade of crocodylian-like predators
Teeth can provide important insight into diet and evolution of extinct vertebrates. Tooth enamel microstructure records functional and phylogenetic signals beyond the gross morphology of the dentition. Here , we provide the first systematic sampling of phytosaur tooth enamel to address questions of intra-and interspecific variation, and thus taxonomic identification, biogeographic connectivity, and heterodonty. We sampled 23 phytosaur teeth from five localities throughout the American Southwest and one locality from the Newark Supergroup of North Carolina. These teeth probably represent five heterodont genera and are tentatively assigned to Angistorhinus, Smilosu-chus, Machaeroprosopus, Redondasaurus, and “Rutiodon” . We used scanning electron microscopy to examine their enamel microstructure from transverse, longitudinal, and tangential cross-sections. All sampled teeth are composed of columnar enamel ranging in thickness from 20 to 150 µm, typically 50–100 µm, across all
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Palaeontologia Electronica
Palaeontologia Electronica 地学-古生物学
CiteScore
3.60
自引率
0.00%
发文量
20
审稿时长
>12 weeks
期刊介绍: Founded in 1997, Palaeontologia Electronica (PE) is the longest running open-access, peer-reviewed electronic journal and covers all aspects of palaeontology. PE uses an external double-blind peer review system for all manuscripts. Copyright of scientific papers is held by one of the three sponsoring professional societies at the author''s choice. Reviews, commentaries, and other material is placed in the public domain. PE papers comply with regulations for taxonomic nomenclature established in the International Code of Zoological Nomenclature and the International Code of Nomenclature for Algae, Fungi, and Plants.
期刊最新文献
White shark comparison reveals a slender body for the extinct megatooth shark, Otodus megalodon (Lamniformes: Otodontidae). Middle Eocene cartilaginous fishes (Vertebrata: Chondrichthyes) of the Dnieper-Donets Basin, northern Ukraine. Morphological insights into the lobster genus Uncina Quenstedt, 1851 based on new material from the Ya Ha Tinda Konservat-Lagerstätte, Canada (Early Jurassic) Redescription of soft tissue preservation in the holotype of Scaphognathus crassirostris (Goldfuß, 1831) using reflectance transformation imaging New primates from the Eocene of Saskatchewan, Canada: Revision of the primates from the Cypress Hills Formation with description of new taxa
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1