Phymosoma is an extinct genus of echinoids that lived from the Cretaceous to the Eocene. Its remains have been found in Asia, Europe, and North America. thumb|left|Syngnathid and Phymosoma granulosum fossils at the Geological Museum in Copenhagen
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Phymosoma is an extinct genus of echinoids that lived from the Cretaceous to the Eocene. Its remains have been found in Asia, Europe, and North America. thumb|left|Syngnathid and Phymosoma granulosum fossils at the Geological Museum in Copenhagen
==Sources== Fossils (Smithsonian Handbooks) by David Ward (Page 179)
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).