Template:On this day...


 * 1 year ago
 * The oldest known turtle, Odontochelys, is described.
 * The largest species of frog, Beelzebufo, is described.
 * 5 years ago
 * Alwalkeria, one of the most basal dinosaurs, is announced.
 * Cryolophosaurus, noted for its "Elvis Presley crest", is described.
 * 10 years ago
 * Beipiaosaurus is described on May 27, 1999.
 * The fossil forgery and Chimera "Archaeoraptor" is informally announced.
 * 100 years ago
 * Paleontologist Harry Govier Seeley, who who invented the Saurischian/Ornithischian dinosaur dichotomy, dies.