Fossil from the collection of Lisa Williams, biology professor at Northern Virginia Community College.
Fossil from the collection of biology professor Lisa Williams at Northern Virginia Community College.
With two bonus gastropods.
Sample collected and contributed by Glib Shpychka.
AutoPanoGiga stitch of a small faulted sample, made on a Magnify2 imaging system (GIGAmacro).
Sediment from Clear Creek in Clear Creek Canyon, just west of Golden, CO.
Sample courtesy of Greg Willis.
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