Brachiopods of the subfamily chaoiellinae subfam. nov.: Phylogeny and position in the productidin systematics |
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| Authors: | S S Lazarev |
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| Institution: | 1.Borissiak Paleontological Institute,Russian Academy of Sciences,Moscow,Russia |
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| Abstract: | Two new tribes Chaoiellini and Rugatiini with smoothed ribs on the disk and late appearance of high corpus cavity in the phylogeny
and ontogeny are distinguished within the new subfamily Chaoiellinae. New genera Altaiproductus and Alpavlia are considered to be phyletic ancestors of Chaoiella. The latter genus is revised and redescribed. |
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