| |
【Main Contents】
In his important contribution to Rhaetian and Liassic floras of East Greenland,
Harris pointed out that in the major floras of East Asia, the sequence
of plant beds is little known, it is out of the question to work out their
zenation. Recent studies, however, reveal the presence in China of two
quite distinct plant-bearing horizons of late Triassic and Early Liassic
in age. The lower plant-bearing horizon yielding many important elements
of the lepidopteris zone, such as ptilozamites, Lepidopteris, Anthrophyopsis,
Drepanozamites, Pterophyllum (ptilum, aequale), Cycadocarpidium (rdmanni)
etc., is very widespread in South China, while the upper horizon is more
restrieted in distribution and its floristic composition was not known
until now.
The present paper deals with the largest collection of fossil plants hitherto
secured from the upper horizon, which comprises about 72 species belonging
to 33 genera respectively..
|
|