For sale is a rare crinoid specimen from Brachina Gourge, S.Aust. My research can find no other pics, from this location anywhere, or even references too them! This busy piece is polished on one side, and as the pics show has a old collection number, with location shown on the edge. I do not know who had the collection, but it must have been very large, if this was number 4012 quite possibly from a museum collection. The age is Early/Lower Cambrian and the formation is Wilkawillina Limestone. They are known as “twin cups” as when they were originally discovered they thought they were A. corals? B. Sponges?, but as they have a inner and outer wall=”twin cups” (as seen in your cross-section) so they were put into a completely new family – Archeocyathida Order. Featuring well defined stems, with a good variation of color though the specimen. Very nice definition.
BRACHINA GOURGE, S.AUST.
65 x 41 x 17mm.