A reconsideration of Dimeripteris cornuta SCHWEITZER and CAI, a diminutive fossil plant from the Middle Devonian of Yunnan, China |
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| Authors: | Wang Yi |
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| Affiliation: | a Nanjing Institute of Geology and Palaeontology, The Chinese Academy of Sciences, Nanjing 210008, P.R. Chinab Department of Earth Sciences, Cardiff University, P.O. Box 914, Cardiff CF10 3YE, Wales UK |
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| Abstract: | Small plant fragments previously attributed to Dimeripteris cornuta SCHWEITZER and CAI and new specimens are described from the Middle Devonian (Givetian) Xichong Formation of Wuding, Yunnan Province, southwest China. A predominantly trifurcate branching pattern is recognized in lower orders of branching. Erect fusiform sporangia are borne in pairs terminally on a short pedicel on up to three times dichotomously-branching fertile unit. The beaked tips of the paired sporangia point outwards. This plant is distinguished from known plants by the trifurcate branching pattern and sporangia morphology, but is of problematic affinity. The plant is named Tauritheca cornuta (SCHWEITZER and CAI) WANG and BERRY nov. gen. and nov. comb. |
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| Keywords: | Tauritheca cornuta Middle Devonian Yunnan China |
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