丹麦达尼安和塞兰迪安(古新世)沉积物中的两个新发现的海龟遗骸,有鳄鱼和鲨鱼捕食的证据

IF 1.2 4区 地球科学 Q2 Earth and Planetary Sciences
Kristine Steigardotter Myrvold, J. Milán, J. A. Rasmussen
{"title":"丹麦达尼安和塞兰迪安(古新世)沉积物中的两个新发现的海龟遗骸,有鳄鱼和鲨鱼捕食的证据","authors":"Kristine Steigardotter Myrvold, J. Milán, J. A. Rasmussen","doi":"10.37570/bgsd-2018-66-11","DOIUrl":null,"url":null,"abstract":"Two new fragments of a turtle carapace and a turtle plastron (hypoplastron) have been recovered from glacially transported boulders of Danian and Selandian age. The hypoplastron is identified as Ctenochelys cf. stenoporus, while the carapace fragment can only be assigned to the family Cheloniidae indet. Both specimens show evidence of predation by crocodilians in the form of rows of circular pits in the bones, and one specimen has rows of elongated scrape traces interpreted as scavenging by sharks. Together with the other, rare finds from the middle Danian of the Faxe Quarry and from late Danian deposits in the Copenhagen area, these new finds add important new knowledge to the sparse fossil record of turtles in Scandinavia, as well as evidence that the genus Ctenochelys survived across the K/Pg Boundary.","PeriodicalId":55310,"journal":{"name":"Bulletin of the Geological Society of Denmark","volume":null,"pages":null},"PeriodicalIF":1.2000,"publicationDate":"2018-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"7","resultStr":"{\"title\":\"Two new finds of turtle remains from the Danian and Selandian (Paleocene) deposits of Denmark with evidence of predation by crocodilians and sharks\",\"authors\":\"Kristine Steigardotter Myrvold, J. Milán, J. A. Rasmussen\",\"doi\":\"10.37570/bgsd-2018-66-11\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Two new fragments of a turtle carapace and a turtle plastron (hypoplastron) have been recovered from glacially transported boulders of Danian and Selandian age. The hypoplastron is identified as Ctenochelys cf. stenoporus, while the carapace fragment can only be assigned to the family Cheloniidae indet. Both specimens show evidence of predation by crocodilians in the form of rows of circular pits in the bones, and one specimen has rows of elongated scrape traces interpreted as scavenging by sharks. Together with the other, rare finds from the middle Danian of the Faxe Quarry and from late Danian deposits in the Copenhagen area, these new finds add important new knowledge to the sparse fossil record of turtles in Scandinavia, as well as evidence that the genus Ctenochelys survived across the K/Pg Boundary.\",\"PeriodicalId\":55310,\"journal\":{\"name\":\"Bulletin of the Geological Society of Denmark\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.2000,\"publicationDate\":\"2018-10-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"7\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Bulletin of the Geological Society of Denmark\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://doi.org/10.37570/bgsd-2018-66-11\",\"RegionNum\":4,\"RegionCategory\":\"地球科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"Earth and Planetary Sciences\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Bulletin of the Geological Society of Denmark","FirstCategoryId":"89","ListUrlMain":"https://doi.org/10.37570/bgsd-2018-66-11","RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"Earth and Planetary Sciences","Score":null,"Total":0}
引用次数: 7

摘要

从大年和雪兰阶冰川搬运的巨石中发现了两块新的龟甲和龟质体(低质体)碎片。低lastron被鉴定为Ctenochelys cf.stenoporus,而外壳碎片只能归属于Chelonidae indet家族。两个标本都显示出鳄鱼捕食的证据,骨头上有一排排圆形凹坑,其中一个标本有一排细长的刮擦痕迹,被解释为鲨鱼的觅食行为。这些新发现与Faxe Quarry中达尼亚纪和哥本哈根地区晚达尼亚纪沉积物中的其他罕见发现一起,为斯堪的纳维亚半岛稀少的海龟化石记录增添了重要的新知识,也为Ctenochelys属在K/Pg边界幸存的证据。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Two new finds of turtle remains from the Danian and Selandian (Paleocene) deposits of Denmark with evidence of predation by crocodilians and sharks
Two new fragments of a turtle carapace and a turtle plastron (hypoplastron) have been recovered from glacially transported boulders of Danian and Selandian age. The hypoplastron is identified as Ctenochelys cf. stenoporus, while the carapace fragment can only be assigned to the family Cheloniidae indet. Both specimens show evidence of predation by crocodilians in the form of rows of circular pits in the bones, and one specimen has rows of elongated scrape traces interpreted as scavenging by sharks. Together with the other, rare finds from the middle Danian of the Faxe Quarry and from late Danian deposits in the Copenhagen area, these new finds add important new knowledge to the sparse fossil record of turtles in Scandinavia, as well as evidence that the genus Ctenochelys survived across the K/Pg Boundary.
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
Bulletin of the Geological Society of Denmark
Bulletin of the Geological Society of Denmark GEOSCIENCES, MULTIDISCIPLINARY-
CiteScore
2.80
自引率
16.70%
发文量
28
审稿时长
>12 weeks
期刊介绍: The Bulletin publishes contributions of international interest in all fields of geological sciences on results of new work on material from Denmark, the Faroes and Greenland. Contributions based on other material may also be submitted to the Bulletin if the subject is of relevance for the geology of the area of primary interest.
×
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
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
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 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信