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Jack Kallmeyer replied to the topic TX Echinoid ID? in the forum What Is It? 3 years, 12 months ago
3 years, 12 months ago3 years, 12 months ago@theodore-gray Frankly, they all look alike to me. However, I suggest you obtain a copy of Collector’s Guide to Texas Cretaceous Echinoids by William W Morgan, Schiffer publishing, 2016. He’s got all of them covered.