Early tertiary fossil plants and paleoclimate of lanzhou basin 蘭州盆地早第三紀植物及古氣候意義
On the third floor , modern plants and fossil plants are exhibited 三層是現(xiàn)代植物和化石植物的陳列。
Guideline for cycle chemistry in fossil plants part 4 : feedwater treatment 火電廠汽水化學導則.第4部分:鍋爐給水處理
Guideline for cycle chemistry in fossil plants part 2 : phosphate treatment for drum units 火電廠汽水化學導則.第2部分:鍋爐爐水磷酸鹽處理
Guideline for cycle chemistry in fossil plants part 3 : caustic treatment for drum units 火電廠汽水化學導則.第3部分:汽包鍋爐爐水氫氧化鈉處理
Indeed , fossil plants and animals have confirmed the existence of short - lived connections with the ocean 事實上,動植物的化石也證實了亞馬遜河流域與海洋有短暫的連接。
Guideline for cycle chemistry in fossil plants part 1 : guideline for feed - water oxygenated treatment of once - through boiler 火電廠汽水化學導則第1部分:直流鍋爐給水加氧處理
Devonian fossil plant considered one of the earliest forms of vascular land plants ; similar to genus rhynia but smaller 被認為是有脈管的陸地植物的最初形式之一的泥盆紀化石植物;與鹿角蕨屬相似,較小。
Sometimes the subject is divided into paleobotany , the study of fossil plants , paleozoology , the study of fossil animals , and paleoecology 有時將古生物學分為古植物學(植物化石研究) 、古動物學(動物化石研究)以及古生態(tài)學。
The origin and evolution of land plants was an important event in the history of earth life and has affected all other lives on the earth and global environment . during the past two decade , the new discoveries of fossil plants microfossils and megafossils from the mid - ordovician through all silurian to the lower devonian improved knowledge of the origin of land plants , provided a time framework of the basal groups for the land plants and the early evolution diversity of vascular plants . three new plant based epochs have been recognized . on the other hand , molecular sequence studies have provided insights into the phylogeny and early branches of land plants . a phylogenetic tree has been established by the joint of a study of comparative morphology and gene sequences . this paper summarizes recent advances and new knowledges , comments on the phylogenetic studies based on the cladistic analysis 陸生植物的起源和演化是地球生命中的重大事件,它影響到地球上所有的其他生命和全球環(huán)境。在過去的20年中,從中奧陶世歷經整個志留紀至早泥盆世的巖層中,化石植物微化石和大化石的新發(fā)現(xiàn)改變了人們對陸生植物起源的認識,并且為陸生植物和維管植物早期演化分異提供了基部類群分化的時間框架。據(jù)此人們識別出地史中的3個陸生植物的時代:始胚植物時代始維管植物時代和真維管植物時代。