The oldest bryozoan reefs: a unique Early Ordovician skeletal framework   construction

doi:10.1111/j.1502-3931.2011.00268.x

CORC > 北京大学 > 地球与空间科学学院

	The oldest bryozoan reefs: a unique Early Ordovician skeletal framework construction
	Adachi, Natsuko ; Ezaki, Yoich ; Liu, Jianbo
刊名	lethaia
	2012
关键词	Bryozoa Early Ordovician lithistid sponge Ordovician radiation reef SOUTH CHINA NORTHERN IRAN MOUNDS
DOI	10.1111/j.1502-3931.2011.00268.x
英文摘要	The oldest bryozoan reefs occur in the Lower Ordovician (late Tremadocian) Fenhsiang Formation of the Three Gorges area, South China. These reefs show a unique type of bryozoan (Nekhorosheviella) framework, and were constructed as follows: the first stage involved colonization by lithistid sponges, which acted as a baffler to trap sediments, providing bryozoans with a stable substrate for attachment. The bryozoans then grew as an encruser on the surfaces of sponges, showing a preferential downwards and lateral growth within the sponge scaffolding to avoid biological and physical disturbance. Finally, these biotic combinations among skeletal organisms formed a rigid, threedimensional skeletal framework. This mode of bryozoan growth in association with lithistid sponges is remarkable and unique in its growth direction, and the appearance of such reefs, just prior to the widespread development of skeletal-dominated reefs as part of the Great Ordovician Biodiversification Event, provides an excellent example of the earliest attempts by skeletal organisms to form frameworks by themselves. This find significantly enhances our understanding of the initial stages of skeletal-dominated reef evolution and the ensuing development of reefs during the Middle-Late Ordovician.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000298301900003&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Paleontology; SCI(E); 13; ARTICLE; 1; 14-23; 45
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/155748]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Adachi, Natsuko,Ezaki, Yoich,Liu, Jianbo. The oldest bryozoan reefs: a unique Early Ordovician skeletal framework construction[J]. lethaia,2012.
APA	Adachi, Natsuko,Ezaki, Yoich,&Liu, Jianbo.(2012).The oldest bryozoan reefs: a unique Early Ordovician skeletal framework construction.lethaia.
MLA	Adachi, Natsuko,et al."The oldest bryozoan reefs: a unique Early Ordovician skeletal framework construction".lethaia (2012).