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    Pterodinium pterotum
                    | pterotum | |
| Cookson, I.C. and Eisenack, A. (1958) | |
| Pavlishina, P. (1990) | |
| 00329_Spiniferites_pterotus_holotype.jpg | |
| questionably active | |
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                                                            No synonyms
                                                     
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