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Reorganization of sea urchin gene regulatory networks at least 268 million years ago as revealed by oldest fossil cidaroid echinoid | Scientific Reports
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Fossils - Echinoids
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Wooster's Fossil of the Week: An irregular echinoid from the Middle Jurassic of southern Israel | Wooster Geologists
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Part C
Book: Fossil Echinoids of Texas
Book: Fossil Echinoids of Texas
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