地质学报（英文版）
地質學報（英文版）
지질학보（영문판）
ACTA GEOLOGICA SINICA
2008年
2期
244-248
,共5页
Palaeoscolecid%Guanshan fauna%uitrastructure%Early Cambrian%Yunnan%China
A new palaeoscolecid, Guanduscolex minor Hu, Luo et Fu gen. et sp. nov., with preserved soft parts of introvert and intestines comes from the Lower Cambrian Guanshan fauna of Yunnan,South China. Microstructural details of the cuticle revealed by scanning electron microscopy (SEM)show that each annulation bears three rows of plates and each plate bears 9-10 marginal and 4-5 central nodes. This discovery sheds new light on the relationships and evolutionary pathway of the palaeoscolecids and other early priapulids.
