NEW MATERIAL OF IKECHOSAURUS-SUNAILINAE (REPTILIA, CHORISTODIRA) FROM THE EARLY CRETACEOUS LAOHONGDONG FORMATION, ORDOS BASIN, INNER-MONGOLIA, AND THE INTERRELATIONSHIPS OF THE GENUS

IVPP-IR > 古低等脊椎动物研究室

	NEW MATERIAL OF IKECHOSAURUS-SUNAILINAE (REPTILIA, CHORISTODIRA) FROM THE EARLY CRETACEOUS LAOHONGDONG FORMATION, ORDOS BASIN, INNER-MONGOLIA, AND THE INTERRELATIONSHIPS OF THE GENUS
	BRINKMAN, DB; DONG, ZM
	1993-10-01
发表期刊	CANADIAN JOURNAL OF EARTH SCIENCES
卷号	30 期号:10-11 页码:2153-2162
文章类型	Article
摘要	New material of Ikechosaurus sunailinae from the Early Cretaceous Laohongdong Formation of the Ordos Basin, Inner Mongolia, People's Republic of China, is described. This material, which includes well-preserved articulated skeletons and a series of isolated elements, demonstrates that Ikechosaurus is more closely related to Champsosaurus than to Simoedosaurus, sharing with Champsosaurus the presence of an elongate snout, anteriorly constricted parasphenoid with the foramen canalis caroticus internus located in or near the suture between the parasphenoid and the pterygoid, an anterior extension of the anterior end of the jugal, and an elongate symphysis including the splenial. Ikechosaurus is primitive relative to Champsosaurus in the anterior position of the internal narial openings, in the less strongly flared temporal region with the temporal openings placed largely above one another, in the absence of fenestra in the occiput between the parietal and squamosal, and in the interpterygoid vacuity bordered posteriorly by the basisphenoid. Ikechosaurus and Tchoiria are at a similar grade of evolution, but can be separated by details in the arrangement of bone forming the skull roof.
WOS标题词	Science & Technology ; Physical Sciences
收录类别	SCI
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:A1993MW47200013
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/7464
专题	古低等脊椎动物研究室
作者单位	ACAD SINICA, INST VERTEBRATE PALEONTOL & PALEOANTHROPOL, BEIJING 100044, PEOPLES R CHINA
推荐引用方式 GB/T 7714	BRINKMAN, DB,DONG, ZM. NEW MATERIAL OF IKECHOSAURUS-SUNAILINAE (REPTILIA, CHORISTODIRA) FROM THE EARLY CRETACEOUS LAOHONGDONG FORMATION, ORDOS BASIN, INNER-MONGOLIA, AND THE INTERRELATIONSHIPS OF THE GENUS[J]. CANADIAN JOURNAL OF EARTH SCIENCES,1993,30(10-11):2153-2162.
APA	BRINKMAN, DB,&DONG, ZM.(1993).NEW MATERIAL OF IKECHOSAURUS-SUNAILINAE (REPTILIA, CHORISTODIRA) FROM THE EARLY CRETACEOUS LAOHONGDONG FORMATION, ORDOS BASIN, INNER-MONGOLIA, AND THE INTERRELATIONSHIPS OF THE GENUS.CANADIAN JOURNAL OF EARTH SCIENCES,30(10-11),2153-2162.
MLA	BRINKMAN, DB,et al."NEW MATERIAL OF IKECHOSAURUS-SUNAILINAE (REPTILIA, CHORISTODIRA) FROM THE EARLY CRETACEOUS LAOHONGDONG FORMATION, ORDOS BASIN, INNER-MONGOLIA, AND THE INTERRELATIONSHIPS OF THE GENUS".CANADIAN JOURNAL OF EARTH SCIENCES 30.10-11(1993):2153-2162.