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Playa sinkhole opens up a large cave beneath highway Explorers find 2 1/2-million-year-old sea snail fossils https://mexiconewsdaily.com/news/playa-sinkhole-opens-up-a-large-cave-beneath-highway/ https://www.voanews.com/americas/mexican-highway-sinkhole-reveals-fossil-filled-cave Yours, Paul H.

Giant Sinkhole Opens Up In South Dakota, People Go Inside It To Investigate And The Pics Go Viral By Rokas Laurinavičius and Mindaugas Balčiauskas Bored Panda, June 15, 2020 https://www.boredpanda.com/sinkhole-south-dakota-black-hawk-old-gypsum-mine/ Yours, Paul H.

Fossil plants provide clues to changing environments in Tennessee’s past. The Erwin record, April 11, 2020 https://www.erwinrecord.net/community-news/fossil-plants-provide-clues-to-changing-environments-in-tennessees-past/ Some random papers. Gong, F., Karsai, I. and Liu, Y.S.C., 2010. Vitis seeds (Vitaceae) from the late Neogene Gray fossil site, northeastern Tennessee, USA. Review of Palaeobotany and Palynology, 162(1), pp.71-83. https://dc.etsu.edu/cgi/viewcontent.cgi?referer=https://scholar.google.com/scholar?hl=en&as_sdt=0%2C19&q=Gray+Fossil+Site&btnG=&httpsredir=1&article=3171&context=etd Shunk, A.A.J., 2009. Late Tertiary paleoclimate and stratigraphy of the Gray Fossil Site (eastern TN) and Pipe Creek Sinkhole (northcentral IN) (Doctoral dissertation) Baylor Unversity, Waco, TX https://baylor-ir.tdl.org/handle/2104/5303 Shunk, A.J., Driese, S.G. and Dunbar, J.A., 2009. Late Tertiary paleoclimatic interpretation from lacustrine rhythmites in the Gray Fossil Site, northeastern Tennessee, USA. Journal of Paleolimnology, 42(1), pp.11-24. https://www.academia.edu/11963313/Late_Tertiary_paleoclimatic_interpretation_from_lacustrine_rhythmites_in_the_Gray_Fossil_Site_northeastern_Tennessee_USA https://www.academia.edu/23862396/Late_Tertiary_paleoclimatic_interpretation_from_lacustrine_rhythmites_in_the_Gray_Fossil_Site_northeastern_Tennessee_USA Whitelaw, J.L., Mickus, K., Whitelaw, M.J. and Nave, J., 2008. High-resolution gravity study of the Gray Fossil S ite. Geophysics, 73(2), pp.B25-B32. https://www.researchgate.net/publication/249865308_High-resolution_gravity_study_of_the_Gray_Fossil_Site https://www.researchgate.net/profile/Kevin_Mickus/2 Worobiec, E., Liu, Y.S.C. and Zavada, M.S., 2013. Palaeoenvironment of late Neogene lacustrine sediments at the Gray Fossil Site, Tennessee, USA. In Annales Societatis Geologorum Poloniae (Vol. 83, No. 1, pp. 51-63). https://geojournals.pgi.gov.pl/asgp/article/viewFile/12589/11062 https://geojournals.pgi.gov.pl/asgp/article/view/12589 Zobaa, M.K., Zavada, M.S., Whitelaw, M.J., Shunk, A.J. and Oboh-Ikuenobe, F.E., 2011. Palynology and palynofacies analyses of the Gray Fossil Site, eastern Tennessee: their role in understanding the basin-fill history. Palaeogeography, Palaeoclimatology, Palaeoecology, 308(3-4), pp.433-444. https://www.researchgate.net/profile/Michael_Zavada/publication/277307790_Palynology_of_the_Gray_Fossil_Site_eastern_Tennessee_its_role_in_understanding_the_basin_fill_history/links/562905a908ae518e347c704b.pdf Yours, Paul H.

Digging up bones: Unearthing the past at Gray Fossil Site Diane Hughes, Explore Tennessee, The Tennessean, Sept. 10, 2018 https://www.tennessean.com/story/exploretennessee/2018/09/10/unearthing-past-gray-fossil-site/1215351002/ Gray Fossil Site http://gfs.visithandson.org https://en.wikipedia.org/wiki/Gray_Fossil_Site Some publications found using Google Scholar are: Gong, F., Karsai, I. and Liu, Y.S.C., 2010. Vitis seeds (Vitaceae) from the late Neogene Gray fossil site, northeastern Tennessee, USA. Review of Palaeobotany and Palynology, 162(1), pp.71-83. https://dc.etsu.edu/cgi/viewcontent.cgi?referer=https://scholar.google.com/scholar?hl=en&as_sdt=0%2C19&q=gray+fossil+site&btnG=&httpsredir=1&article=3171&context=etd http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.1000.9259&rep=rep1&type=pdf Zobaa, M.K., Zavada, M.S., Whitelaw, M.J., Shunk, A.J. and Oboh-Ikuenobe, F.E., 2011. Palynology and palynofacies analyses of the Gray Fossil Site, eastern Tennessee: their role in understanding the basin-fill history. Palaeogeography, Palaeoclimatology, Palaeoecology, 308(3-4), pp.433-444. https://pdfs.semanticscholar.org/3e1a/1ed4b8c0eb716d82dfa966b0f95f03d7d681.pdf https://www.researchgate.net/profile/Mohamed_Zobaa https://www.researchgate.net/profile/Michael_Zavada Worobiec E., Liu Y.-S., Zavada M. S. 2013. Paleoenvironment of the late Neogene lacustrine sediments at the Gray Fossil Site, Tennessee, USA. Annales Societatis Geologorum Poloniae, 83(1): 51–63. https://www.researchgate.net/profile/Michael_Zavada https://www.researchgate.net/publication/258226231_Worobiec_E_Liu_Y-S_Zavada_M_S_2013_Paleoenvironment_of_the_late_Neogene_lacustrine_sediments_at_the_Gray_Fossil_Site_Tennessee_USA_Annales_Societatis_Geologorum_Poloniae_831_51-63 Also, there is this unrelated shor, "fluff" article. How Long Does Something Have to Be In the Ground Before It's Considered a Fossil? http://mentalfloss.com/article/556730/how-long-does-something-have-to-be-in-ground-to-be-a-fossil Yours, Paul H.

Hi all, I hope someone can help me ID these items I've been finding for about a year now in and by a local creek in Sullivan County, TN. I've shown them to staff at the Nature Center of a nearby park and to various others who have an interest in such things, and no one has been able to say for sure what they are. I've had theories from corals to beads to stalactites (helictites, actually) to burrow casts. All are tube-like, all have holes through them (a few have one end closed, but not many) some have a bumpy, pebbly surface and some are smooth. The biggest is 1 1/2 to 2 inches in length. The area is known for Ordovician finds, and has a lot of caves and sinkholes. I also find a lot of quartz crystals and small (< 1") geode-type rocks in this creek, and the occasional Woodland period artifact. There is an abundance of chert/flint, and unfinished knapped pieces aren't uncommon. I'm anxious to hear your theories and ideas. Thanks much.