Abstract The alleged ＂holotype＂of the bivalve Yangtzedonta primitiva Yu.1985 figured by Qian （2001） is a broken and distorted specimen of the brachiopod Xianfengella prima He and Yang, 1982 and not the holotype of...Abstract The alleged ＂holotype＂of the bivalve Yangtzedonta primitiva Yu.1985 figured by Qian （2001） is a broken and distorted specimen of the brachiopod Xianfengella prima He and Yang, 1982 and not the holotype of Y. primitiva. Qian contends that the oldest recognized monoplacophoran, Maikhanella pristinis （Jiang, 1980）, is neither a monoplacophoran nor the oldest molluscan fossil in the Meishucunian Stage of China. Furthermore, he considers that the oldest bivalve Xianfengoconcha eUiptica Zhang, 1980 is an inarticulate brachiopod, not a mollusc. WatsoneUa yunnanensis （He and Yang, 1982）, is associated with Yangtzedonta primitiva Yu but indicates no evolutionary relationship between the Classes Rostroconchia and Bivalvia in the Lower Cambrian Zhongyicun Member of the Yuhucun Formation. Qian＇s confusion in using non-molluscan fossils to discuss the early evolution of shelled molluscs also confuses the basic concepts of the respective groups.展开更多
That the contents and compositions of trace elements, especially REE in sedimentary rock and agustite originating from inarticulate brachiopods, conodont, etc. change in the vertical direction usually has a close rela...That the contents and compositions of trace elements, especially REE in sedimentary rock and agustite originating from inarticulate brachiopods, conodont, etc. change in the vertical direction usually has a close relation with the stratigraphic boundary of important biologies. This paper systematically analyses REE and 16 trace elements such as U, Th, Sr, Ba, Co, Ni, Cr, V, Cu, Pb, Zn, Sc, Au, As in sedimentary rocks and the agustite on the standard stratified section of the Cambrian-Ordovician Boundary in Dayangcha, Huniiang, Jilin Province. Based on this, the authors investigate the REE distribution pattern and the law of the contents and compositions of trace elements changing, providing the geochemical evidence for building stratified sections of the Cambrian-Ordovician boundary and discussing sedimentary environments.展开更多
This paper attempts to focus on Jorge Luis Borges’ short story The Gospel according To Mark. Borges, an Argentina short storywriter and translator, whose motherland is under long-term western colonization, identifi e...This paper attempts to focus on Jorge Luis Borges’ short story The Gospel according To Mark. Borges, an Argentina short storywriter and translator, whose motherland is under long-term western colonization, identifi es himself unconsciously with the western culture. Hisworks mostly touch upon the themes of religion and philosophy. Along with post-colonialism theory’s springing up, critics began to analyze hisworks from the post-colonial perspective. The author thinks that this short story with religious implication parallels to the cultural invasion in theperiod of colonization, from powerful culture to weaker one. The author, thus, aims to use Michael Foucault’s viewpoints concerning power andknowledge to probe into the western cultural hegemony and ideological invasion refl ected in this story. Besides, the loss and construction of theethnic identity of the colonized will be discussed in details.展开更多
文摘Abstract The alleged ＂holotype＂of the bivalve Yangtzedonta primitiva Yu.1985 figured by Qian （2001） is a broken and distorted specimen of the brachiopod Xianfengella prima He and Yang, 1982 and not the holotype of Y. primitiva. Qian contends that the oldest recognized monoplacophoran, Maikhanella pristinis （Jiang, 1980）, is neither a monoplacophoran nor the oldest molluscan fossil in the Meishucunian Stage of China. Furthermore, he considers that the oldest bivalve Xianfengoconcha eUiptica Zhang, 1980 is an inarticulate brachiopod, not a mollusc. WatsoneUa yunnanensis （He and Yang, 1982）, is associated with Yangtzedonta primitiva Yu but indicates no evolutionary relationship between the Classes Rostroconchia and Bivalvia in the Lower Cambrian Zhongyicun Member of the Yuhucun Formation. Qian＇s confusion in using non-molluscan fossils to discuss the early evolution of shelled molluscs also confuses the basic concepts of the respective groups.
文摘That the contents and compositions of trace elements, especially REE in sedimentary rock and agustite originating from inarticulate brachiopods, conodont, etc. change in the vertical direction usually has a close relation with the stratigraphic boundary of important biologies. This paper systematically analyses REE and 16 trace elements such as U, Th, Sr, Ba, Co, Ni, Cr, V, Cu, Pb, Zn, Sc, Au, As in sedimentary rocks and the agustite on the standard stratified section of the Cambrian-Ordovician Boundary in Dayangcha, Huniiang, Jilin Province. Based on this, the authors investigate the REE distribution pattern and the law of the contents and compositions of trace elements changing, providing the geochemical evidence for building stratified sections of the Cambrian-Ordovician boundary and discussing sedimentary environments.
文摘This paper attempts to focus on Jorge Luis Borges’ short story The Gospel according To Mark. Borges, an Argentina short storywriter and translator, whose motherland is under long-term western colonization, identifi es himself unconsciously with the western culture. Hisworks mostly touch upon the themes of religion and philosophy. Along with post-colonialism theory’s springing up, critics began to analyze hisworks from the post-colonial perspective. The author thinks that this short story with religious implication parallels to the cultural invasion in theperiod of colonization, from powerful culture to weaker one. The author, thus, aims to use Michael Foucault’s viewpoints concerning power andknowledge to probe into the western cultural hegemony and ideological invasion refl ected in this story. Besides, the loss and construction of theethnic identity of the colonized will be discussed in details.
