福建二叠纪介形类两新属

报道产自福建二叠纪的化石介形类两新属．Ｄａｔｉａｎｉａ　ｇｅｎ．ｎｏｖ，产自大田崆峒山晚二叠世长兴组上部，其共生化石主要有丰富的介形类、蜒、非蜒有孔虫和牙形刺．Ｈｅｔｅｒｏｂａｉｒ　ｄｉａ ｇｅｎ．ｎｏｖ．产自大田广平早二叠世栖霞组近中部．其共生化石主要有极丰富的介形类和非蜓有孔虫．根据它们的构造特征和壳面装饰特点，分别将Ｄａｔｉａｎｉａ　ｇｅｎ．ｎｏｖ．和Ｈｅｔｅｒｏｂａｉｒｄｉａ　ｇｅｎ．ｎｏｖ．归入Ａｒｃｙｚｏｉｄａｅ科．结合其共生化石内容和岩性特征，两新属应营正常浅海底栖生活方式．

Two New Genera of Fossil Ostracoda From Permian in Fujian

Thsi paper reports the discovery of the two new genera of the ostracoda in Fujian in l987. The Datiania gen. nov. were collected from upper part of the Upper Permian Changhsing Formation from kongtongshan in Datian. Its associated fossils comprise mainly abundant ostracodes, fusulinids, non-fusuline foraminifers and conodonts. The Heterobairdia gen. nov. were collected from near the middle part of the Lower Permian Chinsia Formation from Guangping in Datian. Its associated fossils comprise mainly very abundant ostracodes and non-fusuline foraminifers. Based on the structural characteristics and surface ornamentation of the new genera, the Datiania gen. nov. and Heterobairdia gen. nov. must be respectively classified into the Arcyzinidae Kcsling, l961 and the Bairdiidae Sars, l887. Thcir associated fossils and lithological characters indicate that the Datiania gen. nov. and Heterobairdia gen. nov. must live on the botton of normal shallow marine.