CAJ | 학술논문

标本为Sinoproceratopyge kiangshanensis Lu的未成年体(分节期),采自浙江江山碓边寒武系芙蓉统排碧阶最上部Sinoproceratopyge kiangshanensis 带.标本明显卷曲,除大部分胸节被压于头甲之下,其余保存较好.自由颊与固定颊明显裂开,并略有错位,推测为一正在蜕壳的标本,卷曲属蜕壳过程中的行为.因头大尾小,胸节数不多,认为其有完全卷曲的能力,可能属半螺旋型卷曲.与美国密苏里寒武系芙蓉统三叶虫和中国辽宁复洲湾Stephanocare的卷曲进行了比较讨论,认为与美国密苏里寒武系芙蓉统三叶虫的卷曲相似而与辽宁复洲湾Stephanocare的卷曲不同.
표본위Sinoproceratopyge kiangshanensis Lu적미성년체(분절기),채자절강강산대변한무계부용통배벽계최상부Sinoproceratopyge kiangshanensis 대.표본명현권곡,제대부분흉절피압우두갑지하,기여보존교호.자유협여고정협명현렬개,병략유착위,추측위일정재세각적표본,권곡속세각과정중적행위.인두대미소,흉절수불다,인위기유완전권곡적능력,가능속반라선형권곡.여미국밀소리한무계부용통삼협충화중국료녕복주만Stephanocare적권곡진행료비교토론,인위여미국밀소리한무계부용통삼협충적권곡상사이여료녕복주만Stephanocare적권곡불동.
An enrolled meraspid trilobite specimen of Sinoproceratopyge kiangshanensis Lu,collected from the upmost part of Furongian of Cambrian in Jiangshan,Zhejiang Province,is described.It is well preserved except the thoracic segments covered by the cephalon.With the free cheek splitting from the fixed cheek,it is believed that in the process of exuviation,the enrolling was an inevitable movement.With a big cephalon,small pygidium and a few thoracic segments,the Sinoproceratopyge kiangshanensis is considered to be completing on enrollment,probably then a "hemispiral enrollment".The enrollment is similar to that of the trilobites from Upper Cambrian of Missouri in America,but different from that of Stephanocare from Liaoning.