dorky Posted October 18, 2020 Share Posted October 18, 2020 I went camping today. ok, not really camping. just picnicking at a campsite in the woods. we didn't stay over night because it is far too cold. so I found this rock with these cool indentions and want to know what it is. at first I thought it was by a tool but it's not. thanks, dorky Link to comment Share on other sites More sharing options...
I_gotta_rock Posted October 18, 2020 Share Posted October 18, 2020 This are crinoid stem sections seen as cross-sections. Commonly called sea lilies. If you tell where abouts in Maryland, we can probably give you and approximate age, too. 2 I refuse to give up my childish wonder at the world. Link to comment Share on other sites More sharing options...
dorky Posted October 18, 2020 Author Share Posted October 18, 2020 omg that's so cool! I got it in greenridge state forest WAY up in the mountains. Flintstone in garrett county. thank you so much! Link to comment Share on other sites More sharing options...
dorky Posted October 20, 2020 Author Share Posted October 20, 2020 On 10/17/2020 at 11:37 PM, I_gotta_rock said: This are crinoid stem sections seen as cross-sections. Commonly called sea lilies. If you tell where abouts in Maryland, we can probably give you and approximate age, too. any idea gotta rock? Link to comment Share on other sites More sharing options...
Ludwigia Posted October 20, 2020 Share Posted October 20, 2020 2 hours ago, dorky said: any idea gotta rock? Your chances of reaching him are better when you do this: @I_gotta_rock Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
I_gotta_rock Posted October 20, 2020 Share Posted October 20, 2020 I found a geological survey map for you. Your fossils are Devonian, somewhere between 345 and 405 million years old as of the time this was published. The official times may have been redefined a bit. By the way, I'm a her (-: --Heather Here's the map: 1 I refuse to give up my childish wonder at the world. Link to comment Share on other sites More sharing options...
Mahnmut Posted October 21, 2020 Share Posted October 21, 2020 Hello Dorky, These resemble very much the devonian crinoid stem sections traditionally known hereabout as "Bonifatiuspfennige" =St. Boniface's pennies". Nice find. Cheers, J Try to learn something about everything and everything about something Thomas Henry Huxley Link to comment Share on other sites More sharing options...
dorky Posted October 22, 2020 Author Share Posted October 22, 2020 On 10/20/2020 at 7:50 PM, I_gotta_rock said: I found a geological survey map for you. Your fossils are Devonian, somewhere between 345 and 405 million years old as of the time this was published. The official times may have been redefined a bit. By the way, I'm a her (-: --Heather Here's the map: holy cow that's old! thank you so much Heather @I_gotta_rock Link to comment Share on other sites More sharing options...
dorky Posted October 22, 2020 Author Share Posted October 22, 2020 On 10/21/2020 at 11:26 AM, Mahnmut said: Hello Dorky, These resemble very much the devonian crinoid stem sections traditionally known hereabout as "Bonifatiuspfennige" =St. Boniface's pennies". Nice find. Cheers, J thank you so much! Link to comment Share on other sites More sharing options...
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