| 词条 | Protoprisma |
| 释义 |
| name = Protoprisma | fossil_range = Burgess Shale | taxon = Protoprisma annulata | authority = Rigby and Collins, 2004 }}Protoprisma is a genus of sponge known from the Burgess Shale.[1] External links
References1. ^{{RigbyCollins2004}} {{paleo-sponge-stub}}{{cambrian-animal-stub}} 3 : Hexactinellida genera|Prehistoric sponge genera|Burgess Shale sponges |
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