Robuta

https://www.usda.gov/about-usda/news/blog/volunteers-have-fossil-field-find-forests-and-grasslands Volunteers Have Fossil Field Find on Forests and Grasslands | USDA forests and grasslands fossil field volunteers find usda https://www.aanda.org/articles/aa/ref/2019/09/aa35658-19/aa35658-19.html Fossil field decay due to nonlinear tides in massive binaries | Astronomy & Astrophysics (A&A)