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east Asia is distributed in about 75% of the current naked botany-level groups, including many regional components from the Gowana ancient land, that is, species that were widely distributed in the southern hemisphere during the geological period. So how did these species come to Asia from the southern hemisphere?
Recently, researchers found the first mummified fossil of the naked plant Dacrycarpus in the northern hemisphere in the Xinsei II pond group in the Guiping Basin of Guangxi, China, and put forward the most likely migration of the genus of chicken wool pine to the north after a comprehensive analysis. Pathway: Since the late Ocsmonic, changes in island chains and ocean currents caused by the collision of the Australia-Asia plate have provided land bridges and suitable humid climate for plant migration, and chicken hair pines are flood-resistant and can also live in
environments, thus successfully spreading to southern China through the above-mentioned natural channels. In addition to the genus chiffon, the researchers studied the large fossil record of 150 other tropical Asian-tropical Australian distribution groups and found that the genus Chick-fil-A was not the only group that entered Asia through this route. As a result, the researchers referred to the migration model as the Dacrycarpus pattern.
fossil record also shows asymmetries in species migration between the two continents, with significantly more groups spreading from Eurasia to the Australian continent than from the Australian continent to Eurasia. These studies show that the Collision of the Australia-Asia Plate since the late 1980s has facilitated cross-equatorial biological exchanges between the two continents and greatly contributed to the diversification of flora and fauna in East Asia.
the work was carried out by researchers from Sun Yat-sen University, Chang'an University and the Russian
Institute of Geology, and the results were published online in the National Science Review, NSR. (Source: Science Network)
paper information:
