Wyzzloarn Posted November 10, 2022 Share Posted November 10, 2022 Hi! I find this rock in the bottom of a shelf with a lot of fossil from different locations (Hungary, Morocco, Czech Republic, Madagascar ect.), but in this case i didn't find any paper . The rock is hard black limestone with quartz in the depression of the surface. I've never seen this kind of fossil before, I appreciate any help! Link to post Share on other sites
FranzBernhard Posted November 10, 2022 Share Posted November 10, 2022 Welcome to TFF from Austria! Sure this is limestone? Looks more like completely silicified / opalized rock. Anyways, I don´t recognize it, never seen such a kind of fossil rock before. @rocket, @Ludwigia? Thank you! Franz Bernhard 1 Link to post Share on other sites
Wyzzloarn Posted November 10, 2022 Author Share Posted November 10, 2022 I crack it a little bit and yes, its more like silicified rock, thanks. Link to post Share on other sites
Fossildude19 Posted November 10, 2022 Share Posted November 10, 2022 Welcome to the Forum. The rock appears to be some form of chert or flint. The fossils themselves look like cross sections of bivalves or brachiopods. Nothing more can be said unless someone recognizes the matrix's locality. 1 1 Link to post Share on other sites
Ludwigia Posted November 10, 2022 Share Posted November 10, 2022 Sorry, but it doesn't look familiar to me. 1 Link to post Share on other sites
JBkansas Posted November 11, 2022 Share Posted November 11, 2022 (edited) The tubular structures look like petrified palm root to me (it comes in a variety of colors based on the minerals that petrified it): Edited November 11, 2022 by JBkansas 1 Link to post Share on other sites
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