Sphaerium beckmani explained

Sphaerium beckmani is an extinct species of fossil freshwater pea clams from the Late Cretaceous deposits of North America. This species was first described by the American paleontologist Loris Shano Russell in 1976.[1] [2] The specimens were collected by the American paleontologist Karl M. Waage from 1961 to 1962 from the Hell Creek Formation of eastern Montana. The locality is dated to the late Maastrichtian Age (around 66.0 to 72.1 million years ago).[3]

Notes and References

  1. Web site: Sphaerium beckmani. Arctos Database. Arctos Collection Management Information System. September 25, 2013.
  2. Loris S. Russell . 1976. Pelecypods of the Hell Creek Formation (Uppermost Cretaceous) of Garfield County, Montana. Canadian Journal of Earth Sciences. 13. 2. 365 - 388. 10.1139/e76-039. 1976CaJES..13..365R .
  3. Web site: Cretaceous "Hell Creek Faunal Facies"; Late Maastrichtian. Phillip Bigelow. Hell Creek Life. September 25, 2013.

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