ydok Posted September 26, 2022 Share Posted September 26, 2022 These were all found in Putnam County, Indiana today. Just wanted some help identifying. Thanks! 1. Very lightweight. Was able to break it in half. Almost felt like wood. I know this probably isn't a fossil, but everyone is very knowledgeable here lol 2. I know there are crinoids and sponge in here, but I'm not sure what the larger white ones are. 3. Again, I know these are crinoids, but is that large piece also a crinoid? 4. Is this just an odd-shaped rock? Link to comment Share on other sites More sharing options...
Rockwood Posted September 26, 2022 Share Posted September 26, 2022 5 hours ago, ydok said: 2. I know there are crinoids and sponge in here, but I'm not sure what the larger white ones are. I think your sponge is actually bryozoan. Most are fenestrates, with a few bits of other types. 1 Link to comment Share on other sites More sharing options...
Rockwood Posted September 26, 2022 Share Posted September 26, 2022 5 hours ago, ydok said: 1. Very lightweight. Was able to break it in half. Almost felt like wood. Coal is my thought. 1 Link to comment Share on other sites More sharing options...
Rockwood Posted September 26, 2022 Share Posted September 26, 2022 5 hours ago, ydok said: 3. Again, I know these are crinoids, but is that large piece also a crinoid? A fragment of a calyx I think. Link to comment Share on other sites More sharing options...
Fin Lover Posted September 26, 2022 Share Posted September 26, 2022 Yeah, I could see #1 being coal. I believe #4 is just a rock. Fin Lover Link to comment Share on other sites More sharing options...
Mark Kmiecik Posted September 26, 2022 Share Posted September 26, 2022 In Illinois and Indiana anything that's dark light and easily broken has a 99% chance of being coal. The others are bits of bryozoans, crinoids and molluscs. The fourth appears to be a suggestively shaped rock, but could be something else. Hard to tell from the photos. Mark. Fossil hunting is easy -- they don't run away when you shoot at them! Link to comment Share on other sites More sharing options...
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