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Summary
| Description |
English: A Cystoid, Oklahomacystis tribrachiatus, 17mm, found in the Bromide Formation Oklahoma, USA, from the Middle Ordovician (Blackriverian) |
| Date | |
| Source | Own work |
| Author | Dwergenpaartje |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 22:03, 12 October 2011 | | 3,160 × 2,320 (682 KB) | Dwergenpaartje |
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