Holasteridae
Holasteridae is an extinct family of sea urchins.
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| Fossil of Hemipleustus oculatus from Belgium, on display at Galerie de paléontologie et d'anatomie comparée in Paris | |
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| Family: | Holasteridae Pictet 1857 |
These semi-infaunal detritivores lived during the Cretaceous period, from 140.2 to 53.0 Ma.[1]
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