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Family: Pericosmidae |
Order: Spatangoida |
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Locality: South China Sea |
Dimensions: 80 x 71 x 42 mm |
| On oral surface (see upper right) the interambulacra 1 and 5 are amphiplacous. That means, that the plate nearest to the peristome touches two different plates in outward direction. | |
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| Locality: China, South China Sea Dimensions: 83 x 80 x46 mm | |
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