Note on the position of Amphibians among the classes of Vertebrates

by Dana, James Dwight 1813-1895
Published 1864

On a new labyrinthodont amphibian from the magnesian limestone, and on Protorosaurus Speneri, von...

by Hancock, Albany
Published 1870

Notes on a Collection of Fishes and Amphibians from Muskoka and Gull Lakes

by Meek, Seth Eugene
Published 1899