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Cassiduloida is an order of sea urchins. The group was extremely diverse with many families and species during the Mesozoic, but today, only seven extant species remain.
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order urchins families classification neolampadidae sea species souto et al cassiduloids mesozoic family world group extremely diverse many today seven
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Cassiduloida | is a | order of sea urchins | 0.90 | text |
| Cassiduloida | related to References | Barnes | 0.60 | section |
| Cassiduloida | related to References | Robert | 0.60 | section |
| Cassiduloida | related to References | Invertebrate Zoology | 0.60 | section |
| Cassiduloida | related to References | Philadelphia | 0.60 | section |
| Cassiduloida | related to References | PA | 0.60 | section |
| Cassiduloida | related to References | Holt-Saunders International | 0.60 | section |
| Cassiduloida | related to References | ISBN | 0.60 | section |
| Cassiduloida | related to References | National History Museum | 0.60 | section |
| Cassiduloida | related to References | Retrieved | 0.60 | section |
| Cassiduloida | related to References | Dec | 0.60 | section |
| Cassiduloida | related to References | Kroh | 0.60 | section |
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