有关中国学者命名的轮藻化石属

ON CHAROPHYTE GENERA NAMED BY CHINESE AUTHORS

近３０年来，中国轮藻化石研究者共建立了３９个化石轮藻属。本文通过这些属和以往所建立的轮藻属形态结构及内部构造的比较研究，建议保留其中的１３个，并确定了它们的系统分类位置。其余的２６个属拟按同义名予以废弃。被保留的１３个属是：ＸｉｎｊｉａｎｇｏｃｈａｒａＹａｎｇｅｔＺｈｏｕ，１９９０，ＰｓｅｕｄｏｍｏｅｌｅｒｉｎａＷａｎｇ，１９８４，ＧｅｍｍｉｃｈａｒａＷａｎｇ，１９８４，ＭｉｎｈｅｃｈａｒａＷｅｉ，１９８３，Ｈｅｍｉ－ｃｌａｖａｔｏｒＷａｎｇｅｔＬｕ，１９８２，ＸｉｎｊｉａｎｇｉｃｈａｒａＬｕｅｔＬｕｏ，１９９０，ＮｅｏｃｈａｒａＷａｎｇｅｔＬｉｎ，１９７８，Ｔｕｒ－ｂｏｃｈａｒａＷａｎｇ，１９７８，ＬｉｎｙｉｅｃｈａｒａＸｉｎｌｕｎ，１９７８，ＮｅｉｍｏｎｇｏｌｉｃｈａｒａＬｕｅｔＹｕａｎ，１９９１，ＣｏｌｉｃｈａｒａＳ．ＷａｎｇｅｔＺｈａｎｇ，１９８２，ＧｒａｎｕｌａｃｈａｒａＬｕｅｔＬｕｏ，１９９０，ＰｉｎｎｏｐｕｔａｍｅｎＷａｎｇｅｔＬｕ，１９８０。

In the recent thirty years, abundant genera and species of the fossil charophytes were found in China,a total of thirty nine genera have been considered as new and named by Chinese authors, they are: Xinjiangochara Yang et Zhou,1990, Pseudomoellerina Wang,1984, Gemmichara Wang, 1984, Minhechara Wei, 1983, Hemiclavator Wang et Lu,1982, Xinjiangichara Lu et Luo,1990, Neochara Wang et Lin, 1978, Turbochara Wang,1978, Linyiechara Xinlun,1978, Neimongolichara Lu et Yuan,1991, Collichara S. Wang et Z.R.Zhang,1982, Granulachara Lu et Luo,1990, Pinnoputamen Wang et Lu, 1980, Euaclistochara Wang et al.,1976, Wangichara Liu et Wu,1985, Songliaochara Wang et al.,1985, Piriformachara Liu et Wu,1985, Henanochara Z.R.Zhang et al.,1985, Hunanochara Hu et Zeng,1982, Dongmingochara Zhao et Huang,1985, Guangraochara C.Q.Yang,1987, Shandongochara Xinlun,1978, Zhejiangella Lin, 1989, Multispirochara Hao,1983, Nucella Yang et Zhou,1990, Ampullichara Yang et Zhou, 1990, Nanlingqiuchara Tan et Di,1991, Sinochara Liu et Wang, 1982, Pseudolatochara Wang,1978, Porosphaera Wang et Huang,1978, Paracuneatochara Wang,1984, Yahuchara Tan et Di,1991, Hengyangochara Hu et Zeng,1982, Eotectochara Hu et Zeng, 1982, Qinghaichara Yang,1983, Hebeichara Li,1989, Caenoclavator Wang et Lu,1982, Hetaochara Shu et Z.R. Zhang,1985, Stylochara Jiang et al.,1985. Usually, the generic criteria in fossil charophytes are base mainly on particular characters of the apical shape and structure of gyrogonites, basal plate, the general outline and ornamentations of gyrogonites. The shape and size of apical pore in Porocharaceae and utricle structure in Clavatoraceae are very important for distinguishing different genera. In Paleozoic charophytes, the numbers of enveloping cells are also considered. In Chinese authors, there are some different views for above genera. After the reexamination of all concerning charophyte genera, the present author considers that most of them are the synonymy of other “old genera”, only thirteen genera can be remained, they are : Xinjiangochara Yang et Zhou,1990, Pseudomoellerina Wang,1984, Gemmichara Wang, 1984, Minhechara Wei, 1983, Hemiclavator Wang et Lu, 1982, Xinjiangichara Lu et Luo, 1990, Neochara Wang et Lin, 1978, Turbochara Wang, 1978, Linyiechara Xinlun,1978, Neimongolichara Lu et Yuan,1991, Collichara S. Wang et Z.R.Zhang,1982, Granulachara Lu et Luo,1990, Pinnoputamen Wang et Lu,1980.