| Trilobite (Criptolithus tesselatus) | |
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This is a cast of a trilobite from our teaching collection. The genus is characterized by long genal spines, broad pygidium, and a lack of eyes. Polygon counts: Original 250,000; 30,000 before compression Time: Ordovician Locality: N/A Specimen: UCD Geology Teaching Collection P-1493 |
Last Updated: 05/25/2006 10:28 AM