Robuta

https://www.usgs.gov/publications/migrated-hydrocarbons-exposure-maastrichtian-nonmarine-strata-near-saddle-mountain Migrated hydrocarbons in exposure of Maastrichtian nonmarine strata near Saddle Mountain, lower... Magoon and others (1980) described an 83-meter- (272-foot-) thick succession of Maastrichtian (Upper Cretaceous) conglomerate, sandstone, mudstone, and coal... https://www.bas.ac.uk/data/our-data/publication/strontium-isotope-correlation-of-the-basal-maastrichtian-stage-in-antarctica-to-the-european-and-us-biostratigraphic-schemes/ Strontium isotope correlation of the basal Maastrichtian Stage in Antarctica to the European and US... New 87Sr/86Sr dating allows the correlation of a marker horizon within the prolific Late Cretaceous Gunnarites antarcticus faunal assemblage of the Cape Lamb... https://www.usgs.gov/publications/maastrichtian-ammonites-chiefly-prairie-bluff-chalk-alabama-and-mississippi Maastrichtian ammonites chiefly from the Prairie Bluff Chalk in Alabama and Mississippi | U.S.... The Prairie Bluff Chalk of Alabama and Mississippi yields a diverse ammonite fauna of Maastrichtian age. Twenty-eight species, of which three are new, are... https://www.omicsonline.org/peer-reviewed/biostratigraphy-and-sequence-stratigraphy-of-campanian-and-maastrichtian-succession-qutbabad-well-zagros-iranp-99865.html Biostratigraphy and Sequence Stratigraphy of Campanian and Maastrichtian Succession, Qutbabad Well,... Biostratigraphy and Sequence Stratigraphy of Campanian and Maastrichtian Succession, Qutbabad Well, Zagros (Iran) Abstract. sequence stratigraphybiostratigraphycampanianmaastrichtiansuccession https://www.mdpi.com/1424-2818/18/3/159 A Giant Halisaurine from the Late Maastrichtian of Morocco The Late Cretaceous deposits of Morocco have yielded one of the richest and most diverse assemblages of marine reptiles in the world, with the mosasaurids... from thegianthalisaurinelatemaastrichtian