搜索结果: 1-15 共查到“国际动态 古生物学”相关记录15条 . 查询时间(0.525 秒)
中国科学院植物研究所植物大数据与生物多样性保护研究团队依据区系重要性指数定量筛选亚热带常绿阔叶林的被子植物特征类群，并基于72个特征类群的冠群年龄，首次采用“谱系累积速率（Lineage Accumulation Rate）”阐明东亚常绿阔叶林多样化演化历史。结果显示，特征谱系累积速率在早渐新世时期迅速增加，表明东亚常绿阔叶林在该时期可能已经形成，该结果与古植物学相关研究结论相符；在随后的渐新世—...
What fossils tell us about the dining habits of dinosaurs（图）
Earth and Environmental Science Veterinary Medicine Research
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2023/6/29
Dinosaur paleontologists are detectives, piecing together clues from fragments of fossils to decipher what a whole organism looked like, how it moved, and how it behaved. While even a preschooler coul...
国外发现新的早白垩纪被子植物化石
早白垩纪 被子植物 化石
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2024/1/17
由葡萄牙、丹麦、美国等国家科研人员组成的联合团队，近日在葡萄牙托雷斯韦德拉什地区发现白垩纪早期被子植物化石群。
According to data from the National Science Foundation, just three people of color earned doctoral degrees in paleontology in the United States in the year 2020. Two were from Penn.
Newly identified softshell turtle lived alongside T. rex and Triceratops（图）
软壳龟 霸王龙 三角龙 白垩纪末期
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2023/7/11
Anewly described softshell turtle that lived in North Dakota 66.5 million years ago at the end of the Cretaceous Period, just before the end-Cretaceous mass extinction, is one of the earliest known sp...
中国科学院华南植物园对东亚亚热带常绿阔叶林樟科鳄梨族演化历史研究获新进展（图）
中国科学院华南植物园 东亚亚热带常绿阔叶林 樟科鳄梨族 演化历史 BMC Plant Biology
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2022/7/5
亚热带常绿阔叶林是一种重要的植被类型，主要分布在东亚地区，优势类群主要是壳斗科、樟科、木兰科和山茶科。我国亚热带常绿阔叶林分布在北纬24°至32°、东经99°到123°的范围内，具有丰富的生物多样性。生物多样性是人类赖以生存的物质基础，在当今全球气候变化背景下，东亚亚热带常绿阔叶林将会如何演化是一个重要的科学问题。尽管预测亚热带常绿阔叶林在未来的变化趋势还十分困难，但是通过研究它过去的演化历史可为...
A big discovery of a tiny critter（图）
水熊虫化石 缓步动物 无脊椎动物
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2023/6/21
Good luck finding an animal tougher than a tardigrade.
Why did some mammals develop tusks?（图）
二齿兽 哺乳动物 脊椎动物
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2023/6/21
Awide array of animals have tusks, including elephants, walruses, warthogs, hippos, and even the much smaller hyrax, which look like guinea pigs and are about the size of domestic cats. The other thin...
Knowing a big deal when you see it（图）
化石 爬行动物 鳞龙
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2023/6/21
It’s not uncommon for scientists to have to run experiments numerous times to see whether they have a big discovery on their hands. Every once in a while, though, a researcher makes a big find more or...
《科学》：南半球首次发现霸王龙化石
南半球 霸王龙化石
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2010/3/31
英国和澳大利亚研究人员2010年3月25日说，他们在澳大利亚发现了一块霸王龙耻骨化石，这是首次有证据显示霸王龙也曾经生活在南半球大陆上。
法研究机构称发现世界上最大的恐龙足迹
世界最大 恐龙足迹
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2009/10/9
法国国家科研中心2009年10月6日宣布，经过对里昂附近发现的动物足迹进行研究，他们认为这些足迹属于蜥脚类恐龙，这可能是迄今人类发现的最大的恐龙足迹。
世界迄今为止最早的霸王龙化石在辽宁出土
最早 霸王龙化石 辽宁
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2009/9/14
世界上迄今为止最早的霸王龙化石日前在辽宁省朝阳市境内出土。科学家们在初步研究后认为，这种个体庞大的霸王龙生存于1.2亿年前的早白垩纪，比北美、蒙古等地已经发现的同类霸王龙要早5000多万年。这次在热河古生物化石中首次发现霸王龙化石，对研究霸王龙的起源、迁徙和进化具有重要科学价值。
Paleontologists Discover New Mammal from Mesozoic Era（图）
Paleontologists Mammal Mesozoic Era
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2007/3/19
March 14, 2007，An international team of American and Chinese paleontologists has discovered a new species of mammal that lived 125 million years ago during the Mesozoic Era, in what is now the Hebei P...
Finding Our Roots（图）
primate family tree fossil specimens
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2007/1/26
Jan 24, 2007，The earliest branches of primate evolution are more ancient by 10 million years than previous estimates, according to researchers who reconstructed the base of the primate family tree. Th...
Volcanic Blast Likely Killed and Preserved Juvenile Fossil Plesiosaur Found in Antarctica（图）
Volcanic Plesiosaur
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2006/12/15
December 11, 2006，Amid 70-mile-an-hour winds and freezing Antarctic conditions, an American-Argentine research team has recovered the well-preserved fossil skeleton of a juvenile plesiosaur--a marine ...