权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

THE STUDY OF EARLY CRETACEOUS MAMMALS IN EASTERN ASIA

东亚早白垩世哺乳动物的研究

基本信息

批准号：
14255002
负责人：
SETOGUCHI Takeshi
金额：
$ 15.56万
依托单位：
KYOTO UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (A)
财政年份：
2002
资助国家：
日本
起止时间：
2002 至 2005
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14255002/
关键词：
CRETACEOUS MAMMAL FOSSILS EUTHERIANS MIFUNE FAUNA FUXIN FAUNA YIXIAN FAUNA TETORI FAUNA LIAONING, CHINA

项目摘要

During 1990's, several mammal fossils have been recovered from the continental deposits of the Lower Cretaceous and the base of the Upper Cretaceous in both Eastern China and Japan. They are classified chronologically in ascending order as follows :Cretaceous Upper Mifune Fauna : Mifune, Kumamoto, Japan. CenomanianLower Fuxin Fauna : Fuxin, Liaoning, China. Aptian - AlbianShahai Fauna : Shahai, Liaoning, China. Barrremian - AptianYixian Fauna : Yixian, Liaoning, China. NeocomianTuchengzi Fauna : Qing-Xhou, Liaoning, China. NeocomianTetori Fauna : Shiramine, Ishikawa, Japan. NeocomianIt is the major purpose of the present research project to clarify the evolutionary sequence of the mammalian phylogeny during the earaly phase of the Cretaceous, which has hitherto been unknown.At the excavation sites in Fuxin area, Liaoning, China, several unique mammals have been discovered by the research team. They cinclude : eutherian mammal to indicate the intermediate stage between the metatherian and eutherian grade ; a subfamily of eu-triconodonts and a family of multituberculate mammals which have been known only from Europe and North America until now, which provide the new informations about the evolutionary development of mammalian zoo-geography during the later phase of the Mesozoic Era. They will be described soon in scientific papers.

20世纪90年代，在中国东部和日本的下白垩统和上白垩统底部的陆相沉积中，相继发现了几种哺乳动物化石。它们按时间顺序排列如下：白垩纪上三船动物群：日本熊本三船。新诺曼纪下阜新动物群：中国辽宁阜新。Aptian-AlbianShahai动物群：中国辽宁沙海.义县动物群：中国辽宁义县.新comian土城子动物群：中国辽宁清徐。日本石川白峰区系。Neocomian本研究项目的主要目的是阐明白垩纪早期哺乳动物的演化顺序，这是迄今为止所不知道的。在中国辽宁阜新地区的发掘地点，研究小组发现了几种独特的哺乳动物。它们包括：真三齿类的一个亚科和一个迄今仅见于欧洲和北美洲的多瘤类哺乳动物科，为中生代晚期哺乳动物动物地理的演化提供了新的信息。它们很快就会在科学论文中被描述出来。