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Mother snail labors for posterity in bed of mid-Cretaceous amber
Jochum, Adrienne1,2,3,4; Yu, Tingting(俞婷婷)5,6; Neubauer, Thomas A.7,8
2021-09-01
Source PublicationGONDWANA RESEARCH
ISSN1342-937X
Volume97Pages:68-72
Abstract

When seldom life history events serendipitously get documented by exceptional preservation in the fossil record, a unique telescopic opportunity arises for interpreting fossils within their paleoenvironment as well as for understanding ancestral relationships of current life forms. We present a rare glimpse of live birth by a terrestrial mother snail, incidentally, engulfed by amber as she released her young in a tropical forest during the mid-Cretaceous (early Cenomanian). The exceptional finding featuring the preservation of a snail's 99-million-year-old soft-body together with five neonate shells represents the earliest known fossilized incidence of viviparity in a terrestrial snail. Based on high-resolution photographs and mCT scans, we describe the mother snail as a new species of cyclophoroid, Cretatortulosa gignens sp. nov. Our finding provides remarkable perspectives for interpreting gastropod evolution 80 million years ear-lier than the fossil record has known up to now. It shows that viviparity was already a relevant reproduc-tive strategy in the Cretaceous, probably increasing the offspring's survival chance in a predator-lurking tropical forest. (c) 2021 The Authors. Published by Elsevier B.V. on behalf of International Association for Gondwana Research. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/ licenses/by-nc-nd/4.0/).

KeywordViviparity Ovoviviparity Land snails Paleoecology Burmese amber
DOI10.1016/j.gr.2021.05.006
Indexed BySCI
Language英语
WOS KeywordTERRESTRIAL GASTROPODS
Funding ProjectStrategic Priority Research Program of the Chinese Academy of Sciences project[XDB26000000] ; Second Tibetan Plateau Scientific Expedition and Research project[2019QZKK0706] ; National Natural Science Foundation of China[41688103] ; DFG[NE 2268/2-1]
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000671547700005
Funding OrganizationStrategic Priority Research Program of the Chinese Academy of Sciences project ; Second Tibetan Plateau Scientific Expedition and Research project ; National Natural Science Foundation of China ; DFG
PublisherELSEVIER
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/38400
Collection中国科学院南京地质古生物研究所
Corresponding AuthorJochum, Adrienne
Affiliation1.Nat Hist Museum Bern, CH-3005 Bern, Switzerland
2.Univ Bern, Inst Ecol & Evolut, CH-3012 Bern, Switzerland
3.Senckenberg Res Inst, D-60325 Frankfurt M, Germany
4.Nat Hist Museum, D-60325 Frankfurt M, Germany
5.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 100083, Peoples R China
6.Univ Sci & Technol China, Hefei 230026, Peoples R China
7.Justus Liebig Univ, Dept Anim Ecol & Systemat, D-35392 Giessen, Germany
8.Nat Biodivers Ctr, NL-2333 CR Leiden, Netherlands
Recommended Citation
GB/T 7714
Jochum, Adrienne,Yu, Tingting,Neubauer, Thomas A.. Mother snail labors for posterity in bed of mid-Cretaceous amber[J]. GONDWANA RESEARCH,2021,97:68-72.
APA Jochum, Adrienne,Yu, Tingting,&Neubauer, Thomas A..(2021).Mother snail labors for posterity in bed of mid-Cretaceous amber.GONDWANA RESEARCH,97,68-72.
MLA Jochum, Adrienne,et al."Mother snail labors for posterity in bed of mid-Cretaceous amber".GONDWANA RESEARCH 97(2021):68-72.
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