Erich Maren Schlaikjer (/ˈɛrɪk ˈmærən ˈʃlaɪkjər/ ERR-ik MARR-ən SHLY-kyər; November 22, 1905 in Newtown, Ohio – November 5, 1972) was an American geologist and dinosaur hunter. Assisting Barnum Brown, he co-described Pachycephalosaurus and what is now Montanoceratops. Other discoveries include Miotapirus and a new species of Mesohippus.
Schlaikjer attended Harvard University, where he graduated with a bachelor's degree in 1929. He received master’s and doctoral degrees from Columbia University in 1931 and in 1935, respectively.[1]