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The below article is discouraging as far as the possibility of Martian fossils. Early Mars was covered in ice sheets, not flowing rivers, researchers say University of British Columbia, August 3, 2020 Summary: "A large number of the valley networks scarring Mars's surface were carved by water melting beneath glacial ice, not by free-flowing rivers as previously thought, according to new research.' Grau Galofre, A., Jellinek, A.M. & Osinski, G.R,. 2020, Valley formation on early Mars by subglacial and fluvial erosion. Nature Geoscience, 2020 Other recent papers: Shaw, J., Gilbert, R.G., Sharpe, D.R., Lesemann, J.E. and Young, R.R., 2020. The origins of s-forms: Form similarity, process analogy, and links to high-energy, subglacial meltwater flows. Earth-Science Reviews, 200, p.102994. Rodriguez, J.A.P., Dobrea, E.N., Kargel, J.S., Baker, V.R., Crown, D.A., Webster, K.D., Berman, D.C., Wilhelm, M.B. and Buckner, D., 2020. The Oldest Highlands of Mars May Be Massive Dust Fallout Deposits. Scientific reports, 10(1), pp.1-15. Open Access Yours, Paul H.

Can Rivers Cause Earthquakes? If so, it could help explain some quakes that happen far from tectonic-plate boundaries, By Charlie Shobe, Scientific American, Dec. 18, 2018 https://blogs.scientificamerican.com/observations/can-rivers-cause-earthquakes/ Rivers can cause earthquakes, geologists claim By Brooks Hays, UPI https://www.upi.com/Rivers-can-cause-earthquakes-geologists-claim/5161545400911/ UK Researcher Suggests Rivers May Cause Earthquakes By Jenny Wells, University of Kentucky, Dec. 21, 2018 https://uknow.uky.edu/research/uk-researcher-suggests-rivers-may-cause-earthquakes The paper is: Gallen, S.F. and Thigpen, J.R., 2018. Lithologic Controls on Focused Erosion and Intraplate Earthquakes in the Eastern Tennessee Seismic Zone. Geophysical Research Letters, 45(18), pp.9569-9578. https://www.researchgate.net/publication/327600717_Lithologic_Controls_on_Focused_Erosion_and_Intraplate_Earthquakes_in_the_Eastern_Tennessee_Seismic_Zone https://www.researchgate.net/profile/Ryan_Thigpen https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2018GL079157 Yours, Paul H.

The open access paper is: Madof, A.S., Bertoni, C. and Lofi, J., 2019. Discovery of vast fluvial deposits provides evidence for drawdown during the late Miocene Messinian salinity crisis. Geology. https://pubs.geoscienceworld.org/gsa/geology/article/568108/discovery-of-vast-fluvial-deposits-provides Yours, Paul H.