This article has been reviewed according to Science X's editorial process and policies. Editors have highlighted the following attributes while ensuring the content's credibility: Despite the importance and dominance of angiosperms ("flowering plants") in the current ecosystem, it is rather surprising that we know so little about their origin and early evolution. Paleobotanists have been making efforts to decipher these enigmas.
Unfortunately, their efforts are characterized by an "unbroken record of failure," as Tom Harris put it. A proud record is Archaefructus liaoningensis, which was published in Science in 1998. It is so important that it is widely known as "the First Flower." Dr.
Dilcher was one of the leading paleobotanists working on early angiosperms and was one of the authors of Archaefructus liaoningensis. Our recently published paper on Permocarpelloides in the journal Plant Biosystems was dedicated to Dilcher for his achievements in early angiosperms. Plant Biosystems is a journal hosted by the Italian Botanical Society.
A fact that you may not know is that the Italian Botanical Society, which was established in 1716 and has served the botanical community for more than three centuries, was the first botanical society founded in the world. It is rather disappointing that, until recently, paleobotanists had failed to find any angiosperms in strata older than 130 million years. This stasis appears to suggest that angiosperms cannot be older than the Cretaceous, a period ranging from 145 million to 66 million years ago.
This belief is so overwhelming and unwieldy that it has become a petrified stereotype in paleobotany. However, paleobotanists have attempted to topple this stereotype. We are members of this group of paleobotanists.
Recent paleobotanical advances on angiosperm origin include reports of a few Permian angiosperms, such as Taiyuanostachya, Yuzhoua and Dengfengfructus. However, these discoveries appear disappointing to many botanists, who were taught that free carpels (as in Magnolia) are ancestral in angiosperms and expected such fossils to occur in the early record of angiosperms. The lack of the long-expected free carpels in those Permian fossils made many botanists hesitant to accept the record of angiosperms in the Permian.
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