微体古生物学报
微體古生物學報
미체고생물학보
ACTA MICROPALAEONTOLOGICA SINICA
2004年
1期
25-31
,共7页
植物碎片%晚志留世%古植物学意义%四川
植物碎片%晚誌留世%古植物學意義%四川
식물쇄편%만지류세%고식물학의의%사천
plant-derived fragments Late Silurian palaeobotanical implications Sichuan
本文初步研究了产自四川广元晚志留世地层中植物碎片,共分为三个类型.Type Ⅰ具有叶状体,表面具有孔,叶状体上着生有具有中间加厚带的枝.TypeⅡ的枝表面具有刺.TypeⅢ的枝二歧分叉三次.通过研究认为,Type Ⅰ与苔藓类植物可以对比,具有一定的相似性,可能生活在比较干燥的环境中.TypeⅡ的母体植物可能生活在具有食草动物的环境中.
本文初步研究瞭產自四川廣元晚誌留世地層中植物碎片,共分為三箇類型.Type Ⅰ具有葉狀體,錶麵具有孔,葉狀體上著生有具有中間加厚帶的枝.TypeⅡ的枝錶麵具有刺.TypeⅢ的枝二歧分扠三次.通過研究認為,Type Ⅰ與苔蘚類植物可以對比,具有一定的相似性,可能生活在比較榦燥的環境中.TypeⅡ的母體植物可能生活在具有食草動物的環境中.
본문초보연구료산자사천엄원만지류세지층중식물쇄편,공분위삼개류형.Type Ⅰ구유협상체,표면구유공,협상체상착생유구유중간가후대적지.TypeⅡ적지표면구유자.TypeⅢ적지이기분차삼차.통과연구인위,Type Ⅰ여태선류식물가이대비,구유일정적상사성,가능생활재비교간조적배경중.TypeⅡ적모체식물가능생활재구유식초동물적배경중.
A palynological study of Upper Silurian deposits from Guangyuan, Sichuan, P.R. China, revealed not only cryptospores, miospores, tubular structures and cuticle-like sheets but also numerous plant-derived fragments. Three types of plant-derived fragment are described in this paper. Type Ⅰ consists of thallus with pores,and branches with center band. Type Ⅱ is characterized by the branch with spines on the surface. Type Ⅲ is composed of the branch with three times dichotomies. Type I might resemble the bryophyte in some morphology, and may grow in a desiccating environment. It is suggested that the parent plant of Type Ⅱ may live in an environment with herbivory.