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| Dendraster gibbsii, Dendrasteridae, Clypeasteroida (58 mm), colno 38973 Coalinga, California, USA Purisma Formation, Pliocene, Tertiary |
Dendraster species, Dendrasteridae, Clypeasteroida (98 mm), colno 55567 Locality unknown, Country unknown Formation unknown, Pliocene, Tertiary |
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| Astrodapsis spatiosus, Echinarachniidae, Clypeasteroida (40 mm), colno 36657 Santa Cruz Co., California, USA Santa Margarita Formation, Miocene, Tertiary |
Astrodapsis spatiosus, Echinarachniidae, Clypeasteroida (67 mm), colno 36659 Santa Cruz Co., California, USA Santa Margarita Formation, Miocene, Tertiary |
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