lovec Posted November 29, 2018 Share Posted November 29, 2018 Nice day to all here. Today I have here something " UFO " for me. Localization : Czech Republic, allegedly limestone pan, Cretaceous period. It was between limestones parts. The part in red circle is really hard like carapace - not possible to cut by knife edge ( outdoor good knife ). So what it can be ? Link to comment Share on other sites More sharing options...
Rockwood Posted November 29, 2018 Share Posted November 29, 2018 38 minutes ago, lovec said: It was between limestones parts. Do you mean it was embedded in a limestone matrix ? Link to comment Share on other sites More sharing options...
lovec Posted November 29, 2018 Author Share Posted November 29, 2018 Před 10 minutami řekl Rockwood: Máte na mysli, že byl vložen do vápencové matice? Something like this... see on photo 1 Link to comment Share on other sites More sharing options...
lovec Posted November 29, 2018 Author Share Posted November 29, 2018 And its location with normal fossils, for example like this... 1 Link to comment Share on other sites More sharing options...
Rockwood Posted November 29, 2018 Share Posted November 29, 2018 Trace fossil (burrow) perhaps ? Link to comment Share on other sites More sharing options...
westcoast Posted November 29, 2018 Share Posted November 29, 2018 Iron rich concretion around root or burrow? Link to comment Share on other sites More sharing options...
lovec Posted November 29, 2018 Author Share Posted November 29, 2018 Thanx for ideas, I think its type of concretion...its really hard, not possible to cut Link to comment Share on other sites More sharing options...
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