The origin of angiosperms has been a focus of botanical research.
Although macrofossils and microfossils have suggested that angiosperms
may have earlier occurrence, there are some scholars reluctant to accept
these fossil records and their implications. To resolve this conflict
studying more fossils using new technology is helpful. Obvious
differences exist between pollen of seed plants and spore of ferns.
Applying the MFCFM technology, here we report a half pollen grain with a
mosaic combination of fluorescent spectral features of angiosperms and
ferns from the Jurassic of China. Although the mother plant is still
mysterious, the features of this fossil pollen grain apparently demands
a new thinking on pollen and its evolution.