-
Categories
-
Pharmaceutical Intermediates
-
Active Pharmaceutical Ingredients
-
Food Additives
- Industrial Coatings
- Agrochemicals
- Dyes and Pigments
- Surfactant
- Flavors and Fragrances
- Chemical Reagents
- Catalyst and Auxiliary
- Natural Products
- Inorganic Chemistry
-
Organic Chemistry
-
Biochemical Engineering
- Analytical Chemistry
- Cosmetic Ingredient
-
Pharmaceutical Intermediates
Promotion
ECHEMI Mall
Wholesale
Weekly Price
Exhibition
News
-
Trade Service
Chinese scientists found 125 million years ago the fossils of the two sexes or challenged the "the origin of the quilt plant Cretaceous", said The Guangming Daily Jinzhou March 9 (Reporter Bi Yucai) Cretaceous began to have quilt plants, which is the more common view in previous academic circles, but the discovery of a 125 million-year-old fossil in western Liaoning, may have advanced this time.
The Journal of Geology, sponsored by the Geological Society of China, has published the latest results of research on the origin of quilt plants in the Early Cretaceous of China, co-authored by three Chinese scientists.
, also known as flower plants, is the largest and most advanced type of plant.
mammals, including humans, thrived with the rise of the plant and evolved to the present advanced stage, so the origin and early evolution of the plant has been the focus of the paleo botanists.
One of the researchers, Han Gang, Ph.D., Hainan Institute of Tropical Oceans and Bohai University, told reporters that the specimen came from the Yixian group formation near Da Wang's cane on the outskirts of Lingyuan City, Liaoning Province, and was named Lingyuan Dubio Fruit.
, which grew 125 million years ago, is the first specimen found in the formation to be directly connected to male organs, female organs, stems, and twin leaf blades.
years ago, in Yixian group formations have been found in Liaoning ancient fruit, Chinese ancient fruit and other early plant fossils.
the first time that specimens of both sexes' organs, stems and gemal leaf blades have been found directly connected.
," Han gang said.
The main difference between a dud fruit and a previous bead plant fossil is that the female male is very close and the female is in the center, similar to the flowering in a modern bead plant;
Previously, the diversity of sub-plant fossils in the Yixian group had been unexpected, and with the addition of the prosthetic fruit, the ranks of the sub-plants in the Yixian group of plant groups have grown stronger, unlike in the early stages of origin, the true origin of the sub-plants may have been earlier.
" the emergence of these fossil evidence, on the one hand, to challenge the 'Cretaceous only quilt plant' view, on the other hand, to encourage people to pursue the origin of quilt plants at an earlier time. Professor Liu Zhongjian, chief botanist at the National Center for the Conservation of Orchid Plant Species, one of the
researchers, said, "Although the discovery of the prosthetic fruit may not be the 'last straw', it has prompted people to be wary of established theories."
Source: Guangming Daily