Exceptional preservation of a marine tapeworm tentacle in Cretaceous amber

doi:10.1130/G52071.1

NIGPAS OpenIR

	Exceptional preservation of a marine tapeworm tentacle in Cretaceous amber
通讯作者	Luo, Cihang([email protected]) ; Wang, Bo([email protected])
	Luo, Cihang 1,2; Palm, Harry W.3; Zhuang, Yuhui1,4 ; Jarzembowski, Edmund A.1; Nyunt, Thet Tin 5; Wang, Bo1
	2024-03-22
发表期刊	GEOLOGY
ISSN	0091-7613
页码	5
摘要	Parasites are ubiquitous in extant ecosystems but rarely preserved in the geological record, especially parasitic worms (helminths). One such group is Cestoda (tapeworms), a specialized endoparasitic group of platyhelminths (flatworms). They have a complex lifecycle with at least two hosts, infecting all major groups of vertebrates. However, their fossil record is extremely sparse due to their soft tissue and concealed habitats, with the only widely accepted example before the Quaternary being eggs discovered in a shark coprolite from the Permian. The lack of body fossils greatly hampers our understanding of their early evolution. We report a slender, armed fossil from mid-Cretaceous Kachin (Myanmar) amber (ca. 99 Ma). This fossil displays unique external (armature pattern) and internal (partially invaginated tentacle and rootless hooks) features that are most consistent with the tentacles of extant trypanorhynch tapeworms that parasitize marine elasmobranchs (mainly sharks and rays). Our study thus probably provides not only the first partial body fossil of a tapeworm, but also arguably the most convincing body fossil of a flatworm. In addition, the exquisite invaginated tentacle inside the fossil highlights that amber can preserve the internal structure of helminths. Remarkably, nearly all extant trypanorhynchs are endoparasites of marine elasmobranchs, thus our study provides an exceptional example of a marine endoparasite trapped in terrestrial amber.
DOI	10.1130/G52071.1
收录类别	SCI
语种	英语
关键词[WOS]	BURMESE AMBER ; PLATYHELMINTHES ; FOSSIL ; EVOLUTION ; INCLUSIONS ; PHYLOGENY ; AGE
资助项目	National Natural Science Foundation of China[42125201] ; National Natural Science Foundation of China[42293280] ; Second Tibetan Plateau Scientific Expedition and Research program[2019QZKK0706]
WOS研究方向	Geology
WOS类目	Geology
WOS记录号	WOS:001257209000001
项目资助者	National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research program
出版者	GEOLOGICAL SOC AMER, INC
文献类型	期刊论文
条目标识符	http://ir.nigpas.ac.cn/handle/332004/43928
专题	中国科学院南京地质古生物研究所
通讯作者	Luo, Cihang; Wang, Bo
作者单位	1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Univ Rostock, Fac Agr & Environm Sci, Aquaculture & Sea Ranching, D-18059 Rostock, Germany 4.Yunnan Univ, Inst Palaeontol, Yunnan Key Lab Palaeobiol, Kunming 650500, Peoples R China 5.Myanmar Gems Museum, Dept Geol Survey & Mineral Explorat, Minist Nat Resources & Environm Conservat, Nay Pyi Taw 15011, Myanmar
第一作者单位	中国科学院南京地质古生物研究所
通讯作者单位	中国科学院南京地质古生物研究所
推荐引用方式 GB/T 7714	Luo, Cihang,Palm, Harry W.,Zhuang, Yuhui,et al. Exceptional preservation of a marine tapeworm tentacle in Cretaceous amber[J]. GEOLOGY,2024:5.
APA	Luo, Cihang,Palm, Harry W.,Zhuang, Yuhui,Jarzembowski, Edmund A.,Nyunt, Thet Tin,&Wang, Bo.(2024).Exceptional preservation of a marine tapeworm tentacle in Cretaceous amber.GEOLOGY,5.
MLA	Luo, Cihang,et al."Exceptional preservation of a marine tapeworm tentacle in Cretaceous amber".GEOLOGY (2024):5.