Study on Early Permian Flora and Palaeoecology in the Wuda Area of Inner Mongolia

Abstract

Abstract:

The fossil plants studied in this paper were collected from the Early Permian strata in the Wuda area of Inner Mongolia, China. This flora is composed of 20 species in 11 genera and they belong to Lycopsida, Sphenopsida, Noeggerathiales, Filices, Pteridospermopsida and Cycadopsida. The result shows that the flora contains many typical Cathaysian elements and endemic species and it is a typical Cathaysia flora. On the basis of the floral components, the geological age of the flora is equivalent to the Early Permian, corresponding approximately to Asselian, Sakmarian, Artinskian and Kungurian. Based on the studies of the flora, floral palaeoecology is studied in the paper and the Lepidodendron posthumiiParatingia datongensi community can be set up in the area. The plant community, which was the most abundant in the swamp and lowland environments during the Early Permian, was characterized by the largest number elements of ferns and pteridosperms. The plant community is preserved autochthonously and the life forms of vegetation can be reconstructed by means of fossil materials, including arbores, tree ferns, shrubs and herbs. The plant community indicated a warm and humid climatic condition in the area during the Early Permian.

Key words: Early Permian, flora, palaeoecology, Wuda, Inner Mongolia

CLC Number:

Q914

SUN Ke-Qin. Study on Early Permian Flora and Palaeoecology in the Wuda Area of Inner Mongolia[J]. Geoscience, 2010, 24(2): 195-204.

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