Palaeontology

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RAVN, J.P.J.

Kbhvn., 1907.

REINHARDT, J.

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(London, Harrison and Sons, 1889).

LINDSTRÖM, G.

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LANE, N. GARY.

Berkeley a. Los Angeles, 1973.

HEIE, OLE E.

Cph., 1967.

FAIRCHILD, WESENDUNK A. WEAVER.

Berkeley a. Los Angeles, 1969.

NYST, P.-H.

Bruxelles, 1881-78.

PERGENS, ED. et A.MEUNIER.

Bruxelles, 1886.

VOORTHUYSEN, JOHANNES H. van.

Bruxelles, 1958.

ANDERSON, HANS-JOACHIM.

Krefeld, 1964.

SCHLECHTENDAL, DIETRICH v.

Halle, E. Karras, 1912.

CIPOLLA, FRANCESCO.

Pisa, 1914.

STRONG, C.P.

Wellington, 1984.

HANSEN, HANS JØRGEN.

Copenhagen, 1970.

WEIGELT, JOHANNES.

Berlin, 1960.

KNOWLSON, F.H.

Washington, Government Printing Office, 1919.