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All cephalopods
Much of the skeleton is still in plaster jackets awaiting preparation
consisting mostly of limb bones and isolated cervical vertebrae and ribs
South Dakota
Claosaurus
Charniodiscus concentricus. Ediacaran Fauna Pteranodon All cephalopodsThis is probably Charniodiscus concentricus., a Spindle shaped form of Vendozoan from Mistaken Point, Cape Race, Newfoundland. Stratigraphically the Cape Race material is from the Mistaken Point Formation dated at 565 Ma +or 3 Ma. Ediacaran (=Vendian) period of Precambrian age. Bruce Stinchcomb presents several forms on page 100 101 in figures 8 14 and 8 17 along with #2 the medusiform also from Cape Race. The Vendian marks the first appearance of a
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