CAJ | 학술논문

报道了产于中国二叠纪煤核中的3种具解剖构造的鳞木类叶,它们都具双木质部束,与似封印叶属(Sigillariopsis Scott)特征一致.与该属已有种进行了对比,确认它们为3个新种:产于山西太原西山煤田太原组上部7号煤层(早二叠世早期)煤核中的山西似封印叶(Sigillariopsis shanxiensis sp. nov.)和太原似封印叶(S. taiyuanensis sp.nov.)以及产于贵州水城矿区汪家寨组1号煤层(晚二叠世晚期)煤核中的贵州似封印叶(Sigillariopsis guizhouensis sp.nov.).根据煤核中共生的鳞木类植物其他器官以及欧美植物区鳞木类植物的研究资料推断,它们可能属于封印木属(Sigillaria Brongniart)的叶.在国外(主要是欧美植物区),封印木属植物主要分布于石炭纪,见于二叠纪的封印木很少.华夏植物区的封印木属过去很少发现,其叶和生殖器官均未报道过.本文是首次报道华夏植物区具解剖构造的封印木属的叶,它们的发现不仅丰富了华夏植物区封印木属植物的内容,而且对于研究封印木属的演化以及华夏植物区与欧美植物区鳞木类植物之间的关系也具有重要的意义.
보도료산우중국이첩기매핵중적3충구해부구조적린목류협,타문도구쌍목질부속,여사봉인협속(Sigillariopsis Scott)특정일치.여해속이유충진행료대비,학인타문위3개신충:산우산서태원서산매전태원조상부7호매층(조이첩세조기)매핵중적산서사봉인협(Sigillariopsis shanxiensis sp. nov.)화태원사봉인협(S. taiyuanensis sp.nov.)이급산우귀주수성광구왕가채조1호매층(만이첩세만기)매핵중적귀주사봉인협(Sigillariopsis guizhouensis sp.nov.).근거매핵중공생적린목류식물기타기관이급구미식물구린목류식물적연구자료추단,타문가능속우봉인목속(Sigillaria Brongniart)적협.재국외(주요시구미식물구),봉인목속식물주요분포우석탄기,견우이첩기적봉인목흔소.화하식물구적봉인목속과거흔소발현,기협화생식기관균미보도과.본문시수차보도화하식물구구해부구조적봉인목속적협,타문적발현불부봉부료화하식물구봉인목속식물적내용,이차대우연구봉인목속적연화이급화하식물구여구미식물구린목류식물지간적관계야구유중요적의의.
Three kinds of anatomically-preserved lepidodendralean leaves from Permian coal balls of China were studied. They all have double xylem strands, which is consistent with the genus Sigillariopsis Scott. Compared with the species of Sigillariopsis, they are considered as three new species: S. Shanxiensis sp. Nov. And S. Taiyuanensis sp. Nov. From Coal Seam 7 in the upper part of the Taiyuan Formation (lower Lower Permian), Xishan Coal Field, Taiyuan, Shanxi Province and S. Guizhouensis sp. Nov. From Coal Seam 1 in the Wangjiazhai Formation (upper Upper Permian), Shuicheng Coal Mining District, Guizhou Province. Based on the associated organs of lepidodendraleans other than leaves and the information of the Euramerican lepidodendraleans, the affinities of the three new species of Sigillariopsis are discussed and they are probably leaves of Sigillaria Brongniart. In Euramerican Flora, Sigillaria (including its leaves Sigillariopsis) mainly lived in the Carboniferous period and in the Cathaysian Flora they lived in the Upper Carboniferous to upper Upper Permian periods in rare localities. The leaves and fertile organs of Sigillaria have not been reported from the Cathaysian Flora to date. Three new species of the Permian anatomically-preserved leaves of Sigillaria not only increase the diversity of the Cathaysian sigillarian but also bear important significance on the evolution of sigillarian plants and the relationship of the Cathaysian and Euramerican lepidodendraleans.