“Lefty” discovered in “Plant Pompeii City” 300 million years ago

Plants also have “left-handed”? It is reported that more than 90% of the living entangled plants prefer the right spin. However, researchers at the Nanjing Institute of Geology and Paleontology of the Chinese Academy of Sciences found a stable left-handed winding plant fossil in the swamp forest of “Plant Pompeii” in Inner Mongolia about 300 million years ago. This is the second case in geological history of winding plant fossils, and the discovery traces the habits of entanglement dating back to the late Paleothum 300 million years ago.

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The results are published online in the latest internationally renowned journal, Current Biology.

The word “hand” refers to an object that cannot coincide with its mirror, such as our hands, the left and right hands are mirrored, but the thumb and thumb can not be coincident. “Hand” is widely found in the universe, as large as the Milky Way galaxy, small to neutrinos of the motion trajectory, there are asymmetric rotation, and many prefer single-handed (left or right).

Existing entangled plants are mainly found in quilt plants, and others include the naked plants that buy the genus of the mahogany and the sea sands genus of the real ferns. In the Uda coalfield in Wuhai City, Inner Mongolia, a swamp of about 300 million years ago has been buried in the dump of volcanic ash due to volcanic eruption activity. It is preserved in a similar way to the Italian city of Pompeii, so it is called the “Plant Pompeii City” in China.

Researchers have found a new entangled plant fossil in the swampforest community. By burying and slicing the specimens, they found that the winding plant had a C-shaped tube bundle and should belong to the leaf shaft of the real ferns. Another entangled fossil-linked leaf collected in the same origin suggests that the entangled plant may be a true fern of a reflux fern. Interestingly, the present entangled plants include the genus of the sea sands of the real ferns, mostly with right-handed winding, but the geological history of the two cases of winding plant fossils are left-handed winding.

The researchers speculated that the entanglement of plants and host plants should also climb together on a tree during their lifetime, a phenomenon that suggests that the ecology of the early second-generation marshes has become very complex.

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