Beckwithia Camissonis
Beckwithia may refer to: * ''Beckwithia'' (arthropod), an arthropod genus in the order Aglaspidida * ''Beckwithia'' (plant), a plant genus in the family Ranunculaceae {{Genus disambiguation ...
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Beckwithia (arthropod)
''Beckwithia'' is an extinct genus of average to large size ( to ), soft bodied artiopodan arthropods that lived during the late Middle and Upper Cambrian on the former paleocontinent Laurentia, in what are now Utah and Wisconsin. It has an inverted egg-shape, with a semi-circular head, 11 abdominal segments and a tail spine. It is a typical member of the group Aglaspidida. Etymology ''Beckwithia '' was named after Frank Beckwith, editor and publisher of the Millard County Chronicle of Delta, Utah in the early to middle 1900s, who had a passion for trilobites. Distribution ''Beckwithia'' has been collected from the Middle and Upper Cambrian of Utah (Weeks Formation, House Range, Millard County) and from the Franconian (in North-America called Sunwaptan) of Wisconsin. Taxonomic history ''Beckwithia'' was previously placed in a separate family, the Beckwithiidae, but it has now been established that the defining character (that the terminal segments appeared to be fused) i ...
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