12 泥盆纪的颠石燕类 Figure 1 1-52 The spiriferid brachiopods Mucrospirifer from the Devonian of Ontario. (Photo- graph courtesy of Wards Natural Science Establishment, Inc, Rochester, N.Y
泥盆纪的颠石燕类 D2
D3 spiriferid brachiopods, South China
D3 spiriferid brachiopods，South China
右炭纪长身贝 量纪长身贝类 e 11-54 Ventral (upper photograph) and side (lower photograph)views of the Permian spinose Figure 11-53 The Pennsylvanian productid brachio productid brachiopod Marginifera ornata from the pods Juresania(A), Linoproductus(B), and Salt Range of West Pakistan. Valves (not including Echinoconchus (C).(From Guidebook series 8, linois spines)are about 2 cm wide. ( Courtesy of Geological Survey, 1970.) R.E. Grant, U.S. Geological Survey
石炭纪长身贝类 二叠纪长身贝类
Devonian reefs 以层孔虫和珊瑚为主
Devonian reefs 以层孔虫和珊瑚为主
C海相生物群落海底世界 Figure 12-19 Marine life of the Mississippian based on an Upper Mississippian fossil site at Crawfordville, Indiana. In vertebrate animals shown include crinoids, bastoids, lacy bryozoans, and small corals
C1海相生物群落(海底世界)