Latest Ordovician and earliest Silurian brachiopods succeeding the Hirnantia fauna in South-east China /

by Rong, Jiayu, Huang, Bing, Zhan, Ren-Bin, Harper, D. A. T.
London : Palaeontological Association, 2013

Ordovician of the Great Basin : fieldtrip guidebook and volume for the Seventh International Symposium on the Ordovician System, Las Vegas, Nevada, USA, June 1995 /

Fullerton, Calif. : Pacific Section Society for Sedimentary Geology (SEPM), 1995

Geology of the carbonate rocks of Path Valley, Franklin County, Pennsylvania /

by Okuma, Angelo
[Harrisburg] : Commonwealth of Pennsylvania, State Planning Board, Bureau of Topographic and Geologic Survey, 1970