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Cardipeltis
''Cardipeltis'' is an extinct genus of heterostracan agnathan from marine strata of early Devonian of Utah, and Wyoming.〔Bryant, William L., and Rudolph Ruedemann. "The fish fauna of Beartooth Butte, Wyoming. Parts II and III." Proceedings of the American Philosophical Society (1934): 127-167.〕〔Denison, Robert Howland. Cardipeltis: an early Devonian agnathan of the Order Heterostraci. Field Museum of Natural History, 1966.〕 Species of ''Cardipeltis'' superficially resemble those of cyathaspids in having a flattened body and indistinct head covered by a large, broad, guitar pick or heart-shaped dorsal shield, and a long, scaly tail. Unlike cyathaspids, which all have a single ventral plate, however, the ventral shield of ''Cardipeltis'' is a mosaic composed of large scales. ==References==
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