Columbia subject headings:
Harvard subject headings:
Paleontology--Carboniferous
Paleontology--China--Guizhou Sheng.
Paleontology--China--Yunnan Sheng.
Paleontology--Permian
Rugosa.
Princeton subject headings:
Paleontology--Carboniferous.
Paleontology--China--Guizhou Sheng.
Paleontology--China--Yunnan Sheng.
Paleontology--Permian.
Rugosa.