摘要:
The Lower Cretaceous extensively distributed in Zhejiang contains abundant fossil plants. Since most of the fossils are so fragmentary, it is difficult to make a definite determination at specific level. The cuticle remains are very rare; only two species were reported (Chow and Tsao, 1979), namely, Pseudofrenelopsis parceramosa (Font.) Watson and P. papillosa (Chow et Tsao). This paper deals with several specimens of Gymnospermae, paying particular attention to the characteristics of the cuticular structure. These specimens belong to Nilssonia, Pseudofrenelopsis, Cupressinocladus and Brachyphyllum respectively, all being yielded from the four localities: 1. Suqin of Gymnospermae, paying particular attention to the characteristics of the cuticular structure. These specimens belong to Nihsonia, Pseudafrenelopsis, Cupressi-nocladus and Brachyphyllum respectively, all being yielded from the four localities: 1. Suqin of Xinchang County (Guantou Formation); 2. Shen-jia of Zhuji County (Shouchang Formation); 3. Pingshan of Lin'an County (Shouchang Formation); and 4. Laocun of Jiande County (Laocure Formation), as shown in the map of fossil localities in this paper. The subdivision of Lower Cretaceous and its correlation in both western and eastern Zhejiang are tabulated as follows (in descending order):
