Hardouinia is an extinct genus of echinoids that lived in the Late Cretaceous. Its remains have been found in North America.
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Hardouinia is an extinct genus of echinoids that lived in the Late Cretaceous. Its remains have been found in North America.
==References== Fossils (Smithsonian Handbooks) by David Ward (Page 182)
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).