1998 in paleontology

Amphibians
A. C. Henrici. 1998. A new pipoid anuran from the Late Jurassic Morrison Formation at Dinosaur National Monument, Utah. Journal of Vertebrate Paleontology 18(2):321-332

Dinosaurs

 * A paper in the journal Nature is published by Karen Chin and others announcing the earlier discovery of a "king-sized coprolite" attributed to Tyrannosaurus rex.

Newly named dinosaurs
Data courtesy of George Olshevsky's dinosaur genera list and Dr. Jeremy Montague's dinosaur genus database.