Issue 6,1959 Table of Contents

Abstract:
About 10 km SW from Hanchung,there rise rocky hills of the Liangshan Area which iscovered with little gravel and dissected by streams.Thus we have access to many excellent na-tural sections.Being highly fossiliferous the relative ages of strata may be exactly determined.With different cycles of sedimentation the rocks varied in lithological characters while under stressof crustal movements hiatuses were formed.From all the facts accumulated the writer will disscusssome important stratigraphical problems concerning this region.

5 MIDDLE ORDOVICIAN MOLLUSCS FROM THE PAIYANGHO REGION,CHILIENSHAN(“NANSHAN”)

YANG TSUN-YI

1959(6):492-498. DOI: 10.19800/j.cnki.aps.1959.06.010 CSTR:

[Abstract](12) [HTML](0) [PDF 507.14 K](372)

Abstract:
INTRODUCTIONThis paper deals with all the fossil molluscs collected respectively by Dr.P.Li’s party in1956 and Dr.T.H.Yin’s party in 1957 of the Institute of Geology,Academia Sinica.Pre-liminary reports regarding the discovery of the Ordovician in the Paiyangho region has been madeby Li,and Yang(1957),and Li,Hsieh and Ho(1958),while the writer had twice reported

6 A NEW UPPER PERMIAN TETRACORAL,HUAYUNOPHYLLUM

T.C.TSENG

1959(6):500-501. DOI: 10.19800/j.cnki.aps.1959.06.012 CSTR:

[Abstract](13) [HTML](0) [PDF 430.20 K](411)

Abstract:
The generic name,Huayunophyllum,was proposed by T.K.Huang and the author in 1947without proper description,and has been since then a nomen nudem in geological literature.Inorder to clear up misunderstanding of the genus,this short note is presented here for reference.

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