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I have found it within Eocene clastic and carbonate rocks. The rock is some clastic rock with high carbonate context. I am thinking maybe the white fossils in the rock are some kind of nummulites. What do you think ?
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Beasley, C., Parvaz, D.B., Cotton, L. and Littler, K., 2020. Liberating microfossils from indurated carbonates: comparison of three disaggregation methods. Journal of Micropalaeontology, 39(2), pp.169-181. (Researchgate PDF) Version 2 of Beasley et al. (2020) Yours, Paul H.
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The search for extra-terrestrial fossils is looking more promising. But, I suppose one mustn’t get one’s hopes too high. NASA's Mars 2020 Will Hunt for Microscopic Fossils “Scientists with NASA's Mars 2020 rover have discovered what may be one of the best places to look for signs of ancient life in Jezero Crater, where the rover will land on Feb. 18, 2021. A paper published today in the journal Icarus identifies distinct deposits of minerals called carbonates along the inner rim of Jezero, the site of a lake more than 3.5 billion years ago. On Earth, carbonates help form structures that are hardy enough to survive in fossil form for billions of years, including seashells, coral and some stromatolites — rocks formed on this planet by ancient microbial life along ancient shorelines, where sunlight and water were plentiful. The possibility of stromatolite-like structures existing on Mars is why the concentration of carbonates tracing Jezero's shoreline like a bathtub ring makes the area a prime scientific hunting ground.” “Mars Scientists Investigate Ancient Life in Australia Could Mars ever have supported life? In the Australian Outback, scientists from NASA's upcoming Mars 2020 mission and their counterparts from the joint European-Russian ExoMars mission visited the oldest convincing evidence for life on Earth to prepare for their own searches for signs of ancient life on Mars. The field lesson in astrobiology in the Pilbara region is being applied in the near term by NASA, ESA and Roscosmos for mission planning, and will also pay dividends when both rovers begin to send back science data and imagery from the Red Planet. Credit: NASA/JPL-Caltech Also see: A field guide to finding fossils on Mars. (open access paper)
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New Paper About the Formation of Fossil-Bearing Spherical Carbonate Concretions
Oxytropidoceras posted a topic in Fossil News
Cracking open the formation of fossil concretions Nagoya University, Science Daily, May 2, 2018 https://www.sciencedaily.com/releases/2018/05/180502103931.htm https://www.eurekalert.org/pub_releases/2018-05/nu-cot050218.php The open access paper is at: Yoshida, H., Yamamoto, K., Minami, M., Katsuta, N., Sin-ichi, S. and Metcalfe, R., 2018. Generalized conditions of spherical carbonate concretion formation around decaying organic matter in early diagenesis. Scientific reports, 8(1), article. 6308. https://www.nature.com/articles/s41598-018-24205-5 Yours, Paul H.- 1 reply
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Deep Water Stromatolites Found in Arabian Sea at 731 m Water Depth
Oxytropidoceras posted a topic in Fossil News
Himmler, T., Smrzka, D., Zwicker, J., Kasten, S., Shapiro, R.S., Bohrmann, G. and Peckmann, J., 2018. Stromatolites below the photic zone in the northern Arabian Sea formed by calcifying chemotrophic microbial mats. Geology. https://www.researchgate.net/publication/323211798_Stromatolites_below_the_photic_zone_in_the_northern_Arabian_Sea_formed_by_calcifying_chemotrophic_microbial_mats https://www.researchgate.net/scientific-contributions/74385017_Tobias_Himmler https://pubs.geoscienceworld.org/gsa/geology/article/528309/stromatolites-below-the-photic-zone-in-the Yours, Paul H.- 1 reply
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