Sleepy517 Posted July 1, 2018 Share Posted July 1, 2018 This in my eyes is fossilized coral. But I'm trying find out what kind? It has crystals on the inside. Link to comment Share on other sites More sharing options...
Miocene_Mason Posted July 1, 2018 Share Posted July 1, 2018 Location is very important for IDing fossils, was this found near Payson, Arizona? 1 “...whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been and are being evolved.” ~ Charles Darwin Happy hunting, Mason Link to comment Share on other sites More sharing options...
Sleepy517 Posted July 1, 2018 Author Share Posted July 1, 2018 Yes it was. Link to comment Share on other sites More sharing options...
DPS Ammonite Posted July 1, 2018 Share Posted July 1, 2018 (edited) Welcome to the Forum from Scottsdale. Check out Payson resident Cris Schur's Arizona fossil website: https://www.schursastrophotography.com/fossiladventures.html The coral is probably silicified Hexagonaria sp. from the Devonian Martin Formation. Most internal details to help with ID are usually missing. This is a good reference (ask for it, a member might have it): Stumm, Erwin C., 1948, "Upper Devonian Compound Tetracorals from the Martin Limestone", Journal of Paleontology, Vol. 22:1, pp. 40-47 Edited November 29, 2020 by DPS Ammonite 3 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...
Sleepy517 Posted July 1, 2018 Author Share Posted July 1, 2018 Thank you so much. This helps greatly! Link to comment Share on other sites More sharing options...
Sleepy517 Posted July 1, 2018 Author Share Posted July 1, 2018 Here's the side of the fossil. Is this the silica in it formed? Link to comment Share on other sites More sharing options...
DPS Ammonite Posted July 2, 2018 Share Posted July 2, 2018 Yes. All the Martin Formation corals that I have seen have been replaced by quartz. Some even have quartz crystals inside of geode type hollows. If you find silicified fossils still inside the dolomite you can dissolve most of them out with diluted pool acid using all the proper precautions: gloves, protective eyewear and doing it outside with good airflow. 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...
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