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by Stratigraphy.net
New from Snet: Lithologs, a new tool to create lithological/sedimentological logs online..

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MAASTRICHTIAN CLUPEIFORMES

A stunning example of the Late Cretaceous fish, Gasteroclupea branisai, from Bolivia. This beauty is housed in the Natural History Museum Alcide d'Orbignay of Cochabamba. Gasteroclupea is a genus of prehistoric clupeiform fish related to modern anchovies and herrings. Clupeiformes are physostomes, which means that the gas bladder has a pneumatic duct connecting it to the gut. They typically

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