Pteranodon
"Pteranodon" was the first pterosaur found outside of Europe. Its fossils first were found by Othniel Charles Marsh in 1870, in the Late Cretaceous Smoky Hill Chalk deposits of western Kansas. These chalk beds were deposited at the bottom of what was once the Western Interior Seaway, a large shallow sea over what now is the midsection of the North American continent. These first specimens, YPM 1160 and YPM 1161, consisted of partial wing bones, as well as a tooth from the prehistoric fish "Xiphactinus", which Marsh mistakenly believed to belong to this new pterosaur (all known pterosaurs up to that point had teeth). In 1871, Marsh named the find ""Pterodactylus oweni"", assigning it to the well-known (but much smaller) European genus "Pterodactylus". Marsh also collected more wing bones of the large pterosaur in 1871. Realizing that the name he had chosen had already been used for Harry Seeley's European pterosaur species "Pterodactylus oweni" in 1864, Marsh re-named his giant North American pterosaur Pterodactylus occidentalis, meaning "Western wing finger," in his 1872 description of the new specimen. He also named two additional species, based on size differences: Pterodactylus ingens (the largest specimen so far), and Pterodactylus velox (the smallest).
Aris Poulianos
Since the 1970s, Poulianos has investigated early hominid remains found in a cave near Petralona, Greece, and has become known for controversial claims over their age. According to Poulianos, the Petralona Cave was accidentally discovered in 1959 by local villagers searching for a spring in the mountainside. The Petralona skull, specifically, was discovered in 1960 when it was removed from a rock in the cave. Early estimates at the time placed the age of the hominid remains to around 70,000 years old. Poulianos would ultimately study the remains, name the hominid "Archanthropus europeaus petraloniensis", and estimate its age to be around 700,000 years old.