JMcCarthy Posted August 10, 2019 Share Posted August 10, 2019 Found this sticking out of a creek bed. The smaller piece was directly under the larger one, but it doesn't appear to have broken off. It just has a similar structure. I can't figure out if it's wood, coral, tooth, horn, etc. We have a little of each around here (just north of Austin, TX) but mostly marine fossils. In 5 years I haven't come across one that looked like this though. Closest thing to the interior structure I've found is bison tooth. Any ideas? Link to comment Share on other sites More sharing options...
DPS Ammonite Posted August 10, 2019 Share Posted August 10, 2019 It looks like a calcitic stalagmite or stalactite. Any caves or carbonate springs nearby? See if it fizzes in acid. 2 My goal is to leave no stone or fossil unturned. See my Arizona Paleontology Guide link The best single resource for Arizona paleontology anywhere. Link to comment Share on other sites More sharing options...
grandpa Posted August 10, 2019 Share Posted August 10, 2019 +1 for cave formation/travertine. 1 Link to comment Share on other sites More sharing options...
JMcCarthy Posted August 10, 2019 Author Share Posted August 10, 2019 7 minutes ago, DPS Ammonite said: It looks like a calcitic stalagmite or stalactite. Any caves or carbonate springs nearby? See if it fizzes in acid. Yes! I don't have any acid but there are caves everywhere around here and the rocks around it look like they were in a cave at one point. I just found a pic of a cross section and its easy to see the similarities inside and out. Thanks, it should have occurred to me. Link to comment Share on other sites More sharing options...
grandpa Posted August 10, 2019 Share Posted August 10, 2019 J, I see that you are new to TFF. Let me extend you a welcome to TFF. I am also from Austin. I'd also like to invite you to join the Paleo Society of Austin where you will find a group of good folks of like mind who enjoy talking fossils, hunting fossils, learning about fossils, etc., etc. It's a fun group and would welcome your participation. 1 Link to comment Share on other sites More sharing options...
caldigger Posted August 10, 2019 Share Posted August 10, 2019 Some white vinegar ( kitchen stuff ) should give you an indication. It's 5% acidic. 1 Link to comment Share on other sites More sharing options...
JMcCarthy Posted August 10, 2019 Author Share Posted August 10, 2019 18 hours ago, grandpa said: J, I see that you are new to TFF. Let me extend you a welcome to TFF. I am also from Austin. I'd also like to invite you to join the Paleo Society of Austin where you will find a group of good folks of like mind who enjoy talking fossils, hunting fossils, learning about fossils, etc., etc. It's a fun group and would welcome your participation. Thanks Tom. I just joined. Look forward to meeting you at Fossil Fest in November - if not sooner. Link to comment Share on other sites More sharing options...
grandpa Posted August 10, 2019 Share Posted August 10, 2019 48 minutes ago, JMcCarthy said: Thanks Tom. I just joined. Look forward to meeting you at Fossil Fest in November - if not sooner. Welcome aboard. I look forward to meeting you. Tom Link to comment Share on other sites More sharing options...
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