KLM Posted April 18, 2014 Share Posted April 18, 2014 Without knowing hardly anything about some of my pieces I have enjoyed collecting them over the years. This one was given to me so I don't know anything about its origins. It has these small shells all the way through it. It was around 3-4 inches thick but I had it cut in half to show better. Its one of my favorite pieces. It's very heavy for its size. Any ideas where it came from and how old it may be? Thanks very much!! Link to comment Share on other sites More sharing options...
Auspex Posted April 18, 2014 Share Posted April 18, 2014 This is (the incorrectly named) "Turritella Agate"; always nice to look at, and one of my favorites too Here is a link to some good information: LINK 1 "There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant “Try to learn something about everything and everything about something.” - Thomas Henry Huxley >Paleontology is an evolving science. >May your wonders never cease! Link to comment Share on other sites More sharing options...
Oxytropidoceras Posted April 18, 2014 Share Posted April 18, 2014 (edited) Some publications about "Turritella Agate" are: Allmon, W. D., 2004. Into Focus. Googling Turritella, or The Present and Future Value of the Web for Paleontological Research. Palaeontologia Electronica. vol. 7, no. 2, 2E:9, 171KB; http://palaeo-electronica.org/2004_2/editor/focus.htm http://palaeo-electronica.org/2004_2/editor/focus.pdf Allmon, W. D., 2005, Paleontology of “Turretella Agate”, A Pleurocerid Gastropod-Dominated Assemblage from the Eocene Green River Formation of Wyoming. Geological Society of America Abstracts with Programs. vol. 37, no. 1, p. 19 https://gsa.confex.com/gsa/2005NE/finalprogram/abstract_83382.htm Allmon, W. D., 2009, The Natural (and Not-So-Natural) History of “Turritella Agate.” Rocks & Minerals. vol. 84, pp. 160-165. http://www.rocksandminerals.org/Back%20Issues/2009/March-April%202009/Turritella Allmon, W. D., nda, A Bibliography on "Turritella" agate, Museum of the Earth. at http://www.priweb.org/Research/Turr%20Agate%20Biblio.htm Allmon, W. D., ndb, "Turritella" Agate, Museum of the Earth. at: http://www.priweb.org/Research/Turritella%20Agate.htm Dolenc, A., 1979, Turritella agate- A new find in southwest Wyoming. Lapidary Journal. vol. 33, no. 8, p. 1692. Dolenc, A., 1981, Turritella agate: Update. Lapidary Journal. vol. 34 , no. 11, pp. 2484-85. Grande, L. 1984. Paleontology of the Green River Formation, with a review of the fish fauna. Bulletin no. 63. Geological Survey of Wyoming, Laramie, Wyoming. 333 pp. http://www.wsgs.uwyo.edu/public-info/onlinepubs/docs/B-63.pdf http://www.wsgs.uwyo.edu/public-info/onlinepubs/Bulletins.aspx Spendlove, E., 1977, Wyoming Turritella agate-Field trip: It's in the Delaney Rim south of Wamsutter. Rock & Gem. vol. 7, no. 6, pp. 52-55. Other citations are at https://www.museumoftheearth.org/research.php?page=pubs_all Yours, Paul H. Edited April 18, 2014 by Oxytropidoceras 1 Link to comment Share on other sites More sharing options...
RyanNREMTP Posted April 18, 2014 Share Posted April 18, 2014 Some? Link to comment Share on other sites More sharing options...
Wrangellian Posted April 19, 2014 Share Posted April 19, 2014 Some? Link to comment Share on other sites More sharing options...
KLM Posted September 23, 2014 Author Share Posted September 23, 2014 Thanks for the information!! Sorry for the late post its been a busy summer. Link to comment Share on other sites More sharing options...
jpc Posted September 24, 2014 Share Posted September 24, 2014 In case you did not check out the links, it is Eocene, from Wyoming. Link to comment Share on other sites More sharing options...
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