Palaeontology

HOLM, GERHARD.

Stockholm., 1893.

NØRVANG, AKSEL.

Coph., 1957.

VOGEL, FR.

Leiden, Berlin, 1895.

GILMORE, CHARLES.

Washington, 1928.

CUSHMAN, JOSEPH A.

Bruxelles, 1949.

LEVINSEN, G.M.R.

Kbhvn., 1925.

LUNDGREN, BERNHARD.

Lund, 1881.

HEERING, J.

Maastricht, 1950.

CLARK, WILLIAM BULLOCK a. MAYVILLE W. TWITCHELL.

Washington, 1915.

ROBBA, ELIO.

Milano, 1968.

PABST, WILHELM.

Halle, E. Karras, 1908.

RASMUSSEN, LEIF BANKE.

København, Reitzel, 1956.

BERTHELSEN, OLE.

Copenhagen, 1962.

PERCH-NIELSEN, KATHARINA.

Cph., 1971.

ACCONCI, LUIGI.

Pisa, T. Nistri e C., 1880.

TAYLOR, J.E.

London, Chatto and Windus, 1885.

MOBERG, JOH.CHR.

Stockh., 1888.

KAUTSKY, F.

Berlin, 1925.