Geobulletin alpha

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

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Iereopsis Sponge Fossil with Bioclaustration?

The picture displayed is of an Iereopsis polystoma sponge fossil at the Museo di Paleontologia at Sapienza University of Rome Italy. Creatures like this existed at the time of the Upper Cretaceous Period (Campanian). The fossil was found in Misburg, Hannover, Germany. There appears to be a trace fossil on this sponge that I have seen something like before. We find these marks sometimes on

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