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ORDEN: Clypeasteroida L. Agassiz, 1835 Suborden: Scutellina Haekel, 1896 Infraorden: Laganiformes Desor, 1847 Familia: Echinocyamidae Lambert & Thiery, 1914 |
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| Echinocyamus pusillus | Echinocyamus luciani |
Familia: Fibularidae Gray, 1855
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| Fibularia vaughani | Fibularia gregata | Fibulariella accuta |
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| Thagastea wetterlei |
Familia: Rotulidae Gray, 1855
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| Rotuloidea fimbriata | Heliophora orbicularis |
Familia: Laganidae A. Agassiz, 1873
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| Sismondia occitana | Sismondia intermedia | Jacksonaster depressum |
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| Rumphia orbicularis | Rumphia ova | Rumphia ricta |
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| Neolaganum dalli | Neolaganum durhami | Durhamella ocalana |
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| Wythella eldridgei | Weisbordella cubae | Weisbordella johnsoni |