Morphological variation suggests that chitinozoans may be fossils of individual microorganisms rather than metazoan eggs | |
Liang, Yan (梁艳)4,6,7; Bernardo, Joseph2,8,9,10; Goldman, Daniel1; Nolvak, Jaak6; Tang, Peng (唐鹏)5,7; Wang, Wenhui3; Hints, Olle6 | |
刊名 | PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES |
2019-07-31 | |
卷号 | 286期号:1908页码:8 |
关键词 | morphology palaeozoic organic-walled microfossils chitinozoans biologic affinity |
ISSN号 | 0962-8452 |
DOI | 10.1098/rspb.2019.1270 |
英文摘要 | Chitinozoans are organic-walled microfossils widely recorded in Ordovician to Devonian (ca 485-359 Mya) marine sediments and extensively used in high-resolution biostratigraphy. Their biological affinity remains unknown, but most commonly, they are interpreted as eggs of marine metazoans. Here, we provide new insights into their palaeobiology from three lines of inquiry. We examine morphological variation of a new, well-preserved Late Ordovician species, Hercochitina violana; analyse a compiled dataset of measurements on 378 species representing all known chitinozoan genera; and compare these data with the size variation of eggs of both extinct and extant aquatic invertebrates. The results indicate that the magnitude of site variation within chitinotoan species is larger than observed in fossil and modern eggs. .additionally delicate morphological structures of chitinozoans, such as prosome and complex ornamentation, are inconsistent with the egg hypothesis. Distinct and continuous morphological variation in H. violana is more plausibly interpreted as an ontogenetic series of individual microorganisms, rather than as eggs. |
资助项目 | National Natural Science Foundation of China[41602010] ; National Natural Science Foundation of China[41772001] ; Estonian Research Council[MOBJD62] ; Estonian Research Council[PUT611] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB26000000] |
WOS关键词 | ORDOVICIAN ; BIODIVERSIFICATION ; SIZE |
WOS研究方向 | Life Sciences & Biomedicine - Other Topics ; Environmental Sciences & Ecology ; Evolutionary Biology |
语种 | 英语 |
出版者 | ROYAL SOC |
WOS记录号 | WOS:000482187500017 |
资助机构 | National Natural Science Foundation of China ; Estonian Research Council ; Strategic Priority Research Program of Chinese Academy of Sciences |
内容类型 | 期刊论文 |
源URL | [http://ir.nigpas.ac.cn/handle/332004/27949] |
专题 | 中国科学院南京地质古生物研究所 |
通讯作者 | Liang, Yan (梁艳); Hints, Olle |
作者单位 | 1.Univ Dayton, Dept Geol, Dayton, OH 45469 USA 2.Texas A&M Univ, Dept Biol, College Stn, TX 77843 USA 3.Cent S Univ, Sch Geosci & Info Phys, Minist Educ, Key Lab Metallogen Predict Nonferrous Met & Geol, Changsha 410083, Hunan, Peoples R China 4.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, CAS Key Lab Econ Stratig & Palaeogeog, Nanjing 210008, Jiangsu, Peoples R China 5.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Jiangsu, Peoples R China 6.Tallinn Univ Technol, Dept Geol, EE-19086 Tallinn, Estonia 7.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Nanjing 210008, Jiangsu, Peoples R China 8.Texas A&M Univ, Marine Biol Interdisciplinary Program, College Stn, TX 77843 USA 9.Texas A&M Univ, Program Ecol & Evolut, College Stn, TX 77843 USA 10.Texas A&M Univ, Lab Evolutionary Ecol & Climate Change, College Stn, TX 77843 USA |
推荐引用方式 GB/T 7714 | Liang, Yan ,Bernardo, Joseph,Goldman, Daniel,et al. Morphological variation suggests that chitinozoans may be fossils of individual microorganisms rather than metazoan eggs[J]. PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES,2019,286(1908):8. |
APA | Liang, Yan .,Bernardo, Joseph.,Goldman, Daniel.,Nolvak, Jaak.,Tang, Peng .,...&Hints, Olle.(2019).Morphological variation suggests that chitinozoans may be fossils of individual microorganisms rather than metazoan eggs.PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES,286(1908),8. |
MLA | Liang, Yan ,et al."Morphological variation suggests that chitinozoans may be fossils of individual microorganisms rather than metazoan eggs".PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES 286.1908(2019):8. |
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