lovec Posted July 19, 2020 Share Posted July 19, 2020 Hi I would like to ask if this is a concretion? The age should be Ordovician Link to comment Share on other sites More sharing options...
Ludwigia Posted July 19, 2020 Share Posted July 19, 2020 Looks like part of an orthocone nautiloid. 3 Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
lovec Posted July 19, 2020 Author Share Posted July 19, 2020 Ludwigia thank you :-) 1 Link to comment Share on other sites More sharing options...
RJB Posted July 19, 2020 Share Posted July 19, 2020 Concretions can be in any shape but usually are round. some have fossils inside, some not. RB 1 Link to comment Share on other sites More sharing options...
lovec Posted July 19, 2020 Author Share Posted July 19, 2020 Thank you :-) Link to comment Share on other sites More sharing options...
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