A new look at the Cretaceous Lamprey Mesomyzon Chang, Zhang & Miao, 2006 from the Jehol Biota

doi:10.5252/geodiversitas2021v43a23

IVPP-IR > 中科院古脊椎所（2000年以后）

	A new look at the Cretaceous Lamprey Mesomyzon Chang, Zhang & Miao, 2006 from the Jehol Biota
	Wu, Feixiang1,2 ; Chang, Mee-Mann 1,2,3; Janvier, Philippe 4
	2021-11-25
发表期刊	GEODIVERSITAS
ISSN	1280-9659
卷号	43 期号:23 页码:1293-1307
通讯作者	Wu, Feixiang(wufeixiang@ivpp.ac.cn)
摘要	Lampreys, one of the remaining two living jawless vertebrates, carry great weight in the study of vertebrate evolution. They have a long history dating back to the Devonian but left a scarce fossil record. So far, only five unequivocal fossil lampreys have been described, of which four are Paleozoic. Mesomyzon Chang, Zhang & Miao, 2006, the only known Mesozoic lamprey bridging the Paleozoic and extant relatives, was originally considered similar in morphology and life history to modern forms. Although being repeatedly referred to in early vertebrate phylogeny, the morphology of Mesomyzon is far from adequately known. Based on extensive investigations on numerous new and well-preserved specimens, we present herein more details of the morphology of this fossil lamprey, thereby releasing a package of new information of the cranial nerves, some associated structures of the oral disc, and the naso-hypophysial complex, which are barely preserved in previously known fossil lampreys. Mesomyzon shows peculiarities in having an extremely long anterior dorsal fin and a ribbon-like preanal skin fold, and hence being restored in a distinct profile from the formerly claimed look. Additionally, it shares with some Southern Hemispheric species the widely separated dorsal fins, posteriorly positioned cloaca and enlarged oral papillae. In the light of these new data, the feeding ecology of Mesomyzon was tentatively discussed and this fossil lamprey was considered a likely blood feeder, judging from the reinforcement of the attachment and sensory structures on the periphery of the oral disc.
关键词	fossil lampreys Mesomyzon anatomy phylogeny hematophagy
DOI	10.5252/geodiversitas2021v43a23
关键词[WOS]	JAWLESS VERTEBRATE ; PETROMYZON-MARINUS ; FOSSIL LAMPREY ; EVOLUTION ; HAGFISH ; CHARACTERS ; ANATOMY ; RECORD ; DECAY
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[41688103] ; Chinese Academy of Sciences President's International Fellowship for Distinguished Scientists[2019DB0022] ; Youth Innovation Promotion Association, CAS[2017103]
项目资助者	National Natural Science Foundation of China ; Chinese Academy of Sciences President's International Fellowship for Distinguished Scientists ; Youth Innovation Promotion Association, CAS
WOS研究方向	Paleontology
WOS类目	Paleontology
WOS记录号	WOS:000752139500001
出版者	MUSEUM NATL HISTOIRE NATURELLE
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/21488
专题	中科院古脊椎所（2000年以后）
通讯作者	Wu, Feixiang
作者单位	1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China 2.CAS Ctr Excellence Life & Paleoenvironm, Beijing 100044, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Sorbonne Univ, CR2P MNHN, CNRS, UPMC Paris 6,Museum Natl Hist Nat,Dept Origine &, Case Postale 38,57 Rue Cuvier, F-75231 Paris 05, France
推荐引用方式 GB/T 7714	Wu, Feixiang,Chang, Mee-Mann,Janvier, Philippe. A new look at the Cretaceous Lamprey Mesomyzon Chang, Zhang & Miao, 2006 from the Jehol Biota[J]. GEODIVERSITAS,2021,43(23):1293-1307.
APA	Wu, Feixiang,Chang, Mee-Mann,&Janvier, Philippe.(2021).A new look at the Cretaceous Lamprey Mesomyzon Chang, Zhang & Miao, 2006 from the Jehol Biota.GEODIVERSITAS,43(23),1293-1307.
MLA	Wu, Feixiang,et al."A new look at the Cretaceous Lamprey Mesomyzon Chang, Zhang & Miao, 2006 from the Jehol Biota".GEODIVERSITAS 43.23(2021):1293-1307.