Middle Ordovician (Darriwilian) conodonts from allochthonous limestones in the Oakdale Formation of central New South Wales |
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| Authors: | Yong Yi Zhen Ian G. Percival |
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| Affiliation: | 1. Australian Museum , Division of Earth &2. Environmental Sciences , 6 College Street, Sydney, N.S.W., 2010 E-mail: yongyi@austmus.gov.au;3. Centre for Ecostratigraphy &4. Palaeobiology , Macquarie University , N.S.W., 2109, Australia;5. Department of Mineral Resources , Geological Survey of New South Wales , P.O. Box 76, Lidcombe, N.S.W., 2141 E-mail: ian.percival@minerals.nsw.gov.au |
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| Abstract: | The Dansirit Formation of the Shemshak Group is well exposed in the Parvar area, near the Rudbarak village, Central Alborz, Iran. It contains abundant well-preserved plant macrofossils belonging to 20 taxa of Equisetales, Marattiales, Filicales, Bennettitales, Cycadales, Corystospermales, Caytoniales, Czekanowskiales, Ginkgoales and Pinales. The new species Caytonia iranica sp. nov. is described. Based on the occurrence of Equisetites beanii, Coniopteris hymenophylloides, Nilssonia sarakhs, Czekanowskia blacki and Pseudoctenis fragilis, an early Middle Jurassic age is suggested for this assemblage. |
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| Keywords: | Conodonts Middle Ordovician Darriwilian allochthonous Oakdale Formation New South Wales |
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