A lamprey from the Cretaceous Jehol biota of China

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	A lamprey from the Cretaceous Jehol biota of China
	Chang, MM; Zhang, JY; Miao, DD; zhangmiman@ivpp.ac.cn
刊名	NATURE
	2006
卷号	441 期号:7096 页码:972-974
关键词	Petromyzon-marinus Sea Lamprey Bear-gulch Montana Larvae Usa
ISSN号	0028-0836
英文摘要	Widespread nowadays in freshwater and coastal seas of the cold and temporal zones, lampreys are a jawless vertebrate group that has been in existence for more than 300 million years but left a meagre fossil record. Only two fossil lamprey species, namely Mayomyzon pieckoensis(1,2) and Hardistiella montanensis(3-5), have been recognized with certainty from North American Carboniferous marine deposits(6). Here we report a freshwater lamprey from the Early Cretaceous epoch ( about 125 million years ago) of Inner Mongolia, China. The new taxon, Mesomyzon mengae, has a long snout, a well-developed sucking oral disk, a relatively long branchial apparatus showing branchial basket, seven gill pouches, gill arches and impressions of gill filaments, about 80 myomeres and several other characters that are previously unknown or ambiguous. Our finding not only indicates Mesomyzon's closer relationship to extant lampreys but also reveals the group's invasion into a freshwater environment no later than the Early Cretaceous. The new material furthers our understanding of ancient lampreys, bridges the gap between the Carboniferous ones and their recent relatives, and adds to our knowledge of the evolutionary history of lampreys.
URL标识	查看原文
公开日期	2013-11-27
内容类型	期刊论文
源URL	[http://119.78.100.205/handle/311034/4996]
专题	古脊椎动物与古人类研究所_图书馆1
通讯作者	zhangmiman@ivpp.ac.cn
推荐引用方式 GB/T 7714	Chang, MM,Zhang, JY,Miao, DD,et al. A lamprey from the Cretaceous Jehol biota of China[J]. NATURE,2006,441(7096):972-974.
APA	Chang, MM,Zhang, JY,Miao, DD,&zhangmiman@ivpp.ac.cn.(2006).A lamprey from the Cretaceous Jehol biota of China.NATURE,441(7096),972-974.
MLA	Chang, MM,et al."A lamprey from the Cretaceous Jehol biota of China".NATURE 441.7096(2006):972-974.