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DOI | 10.1073/pnas.1814794116 |
Hagfish from the Cretaceous Tethys Sea and a reconciliation of the morphological-molecular conflict in early vertebrate phylogeny | |
Miyashita, Tetsuto1,2; Coates, Michael I.1; Farrar, Robert3; Larson, Peter3; Manning, Phillip L.4; Wogelius, Roy A.4; Edwards, Nicholas P.4,5; Anne, Jennifer4,6; Bergmann, Uwe5; Palmer, A. Richard2; Currie, Philip J.2 | |
2019 | |
发表期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
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ISSN | 0027-8424 |
出版年 | 2019 |
卷号 | 116期号:6页码:2146-2151 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Canada; England |
英文摘要 | Hagfish depart so much from other fishes anatomically that they were sometimes considered not fully vertebrate. They may represent: (i) an anatomically primitive outgroup of vertebrates (the morphology-based craniate hypothesis); or (ii) an anatomically degenerate vertebrate lineage sister to lampreys (the molecular-based cyclostome hypothesis). This systematic conundrum has become a prominent case of conflict between morphology- and molecular-based phylogenies. To date, the fossil record has offered few insights to this long-branch problem or the evolutionary history of hagfish in general, because unequivocal fossil members of the group are unknown. Here, we report an unequivocal fossil hagfish from the early Late Cretaceous of Lebanon. The soft tissue anatomy includes key attributes of living hagfish: cartilages of barbels, postcranial position of branchial apparatus, and chemical traces of slime glands. This indicates that the suite of characters unique to living hagfish appeared well before Cretaceous times. This new hagfish prompted a reevaluation of morphological characters for interrelationships among jawless vertebrates. By addressing nonindependence of characters, our phylogenetic analyses recovered hagfish and lampreys in a clade of cyclostomes (congruent with the cyclostome hypothesis) using only morphological data. This new phylogeny places the fossil taxon within the hagfish crown group, and resolved other putative fossil cyclostomes to the stem of either hagfish or lamprey crown groups. These results potentially resolve the morphological-molecular conflict at the base of the Vertebrata. Thus, assessment of character nonindependence may help reconcile morphological and molecular inferences for other major discords in animal phylogeny. |
英文关键词 | Myxinoidea cyclostome monophyly synchrotron soft tissue |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000457731900054 |
WOS关键词 | LAMPREY ; EVOLUTION ; CRANIATA ; AFFINITY ; REVEAL |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/205218 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Univ Chicago, Dept Organismal Biol & Anat, 1025 E 57Th St, Chicago, IL 60637 USA; 2.Univ Alberta, Dept Biol Sci, Edmonton, AB T6G 2E9, Canada; 3.Black Hills Inst Geol Res, Hill City, SD 57745 USA; 4.Univ Manchester, Sch Earth & Environm Sci, Manchester M13 9PL, Lancs, England; 5.SLAC Natl Accelerator Lab, Stanford Synchrotron Radiat Lightsource, Menlo Pk, CA 94025 USA; 6.Childrens Museum Indianapolis, Indianapolis, IN 46208 USA |
推荐引用方式 GB/T 7714 | Miyashita, Tetsuto,Coates, Michael I.,Farrar, Robert,et al. Hagfish from the Cretaceous Tethys Sea and a reconciliation of the morphological-molecular conflict in early vertebrate phylogeny[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2019,116(6):2146-2151. |
APA | Miyashita, Tetsuto.,Coates, Michael I..,Farrar, Robert.,Larson, Peter.,Manning, Phillip L..,...&Currie, Philip J..(2019).Hagfish from the Cretaceous Tethys Sea and a reconciliation of the morphological-molecular conflict in early vertebrate phylogeny.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,116(6),2146-2151. |
MLA | Miyashita, Tetsuto,et al."Hagfish from the Cretaceous Tethys Sea and a reconciliation of the morphological-molecular conflict in early vertebrate phylogeny".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 116.6(2019):2146-2151. |
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