The coral spine of the slender sea-pen that McCoy thought that Protovirgularia was the fossil of. Source: https://v3.boldsystems.org/index.php/Taxbrowser_Taxonpage?taxid=726281&fbclid=IwAR2dh9plqzPHUVqTERF97moPqOsUHyV3-0PNsQ4OVmNziC6DXiivmGveGbA
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A Blog About Stone Gathering, Tumbling and Polishing, and Rocks and Landscapes, from New Zealand – With Musical Interludes (john.tumblestone@gmail.com)