广西镜眼虫的潘杰尔器官

研究Phacops kuangxiensis Chang的颊角腹边缘外模标本,对其头部腹边缘观察并描述.头前部的结合沟是尾腹边缘末端伸入的地方,为半圆形.颊角腹边缘近锯齿状沟为第2胸肋到第11胸肋末端当卷曲时在头腹边缘上的结合沟.近颊角横向的平切的坑痕为第一胸肋前缘滑入头腹边缘的结合沟.

PANDERIAN ORGANS OF PHACOPS KUANGXIENSIS CHANG

Phacops kuangxiensis Chang was collected from the black shale of the Middle Devonian Tangsxiang Formation at Luofu, Nandan of Guangxi. On the Cephalic doublure can be seen a series of vincular furrows. There is a vincular furrow (Pd_1) at the anterior margin of the first pleural end on the doublure of the genal angle. In addition, in front of it there are 10 en echelon like the first one.When Phacops kuangxiensis Chang is enrolled, the knife-edged posterolateral doublure of the pygidium fits into the vincular furrow at the front margin of cephalic doublure; the first thoracic pleural extremity into the vincular furrow Pd_1; the second thoracic pleural extremity into the vincular furrow Pd_2, and thus the eleventh thoracic pleural extremity into Pd_(11).