贵州凯里生物群大型双瓣壳节肢动物耙肢虾Occacaris、剪肢虾Forgrxicari的初步研究

The Research of Occacaris and Forgrxicari of the Large BIVALVED Arthropod Animal from Kaili Biota at the Balang,Jianhe County,Guizhou

本文描述了贵州省剑河县凯里生物群中大型双瓣壳节肢动物化石,计2属3种,即疑问耙肢虾?Occacaris sp.、疑问卵形耙肢虾(相似种)Occacaris oviformis及网形剪肢虾Forfexicaris reticulate。其中卵形耙肢虾(相似种)Occacaris cf.oviformis是从原未定种Occacaris sp.划分出来的,最主要特征是其腹部边缘剧烈向下拱凸。凯里生物群中的耙肢虾、剪肢虾属种和云南澄江中的相同属及有关种具有相似性,原因是他们都分布在中国西南地区,并未在其他地区被发现,具有相同区域性环境。

Here described Occacaris and Forgrxicaris of the Large Bivalved Arthropod animal from Kaili biota in- clude 3 species：Occacaris sp. , Occacariscf. Oviforrnis and Forfexicaris. Among them, the characters of Occa- cariscf, oviforrnisis that their abdomen edge sharp downward arching. Occacarisand Forfexicaris genera in Kaili bi- ota are similar with the same genera in Chengjiang biota in Yunnan,the reason is that they are distributed in the same region from southwest China.