Palaeontology

CLARKSON, E.N.K.

London, (1986).

RAVN, J.P.J.

København, Bianco Luno, 1907.

SEELEY, H.G. - TAXONOMY OF REPTILIA.

(London, Harrison and Sons, 1889).

REINHARDT, J.

Kjøbenhavn, Bianco Luno, 1879.

LINDSTRÖM, G.

(Stockholm, 1865).

HEIE, OLE E.

Cph., 1967.

LANE, N. GARY.

Berkeley a. Los Angeles, 1973.

NYST, P.-H.

Bruxelles, 1881-78.

PERGENS, ED. et A.MEUNIER.

Bruxelles, 1886.

FAIRCHILD, WESENDUNK A. WEAVER.

Berkeley a. Los Angeles, 1969.

VOORTHUYSEN, JOHANNES H. van.

Bruxelles, 1958.

ANDERSON, HANS-JOACHIM.

Krefeld, 1964.

CIPOLLA, FRANCESCO.

Pisa, 1914.

SEMPER, JOH.OTTO.

Neubrandenburg, 1861.

WEIGELT, JOHANNES.

Berlin, 1960.

KNOWLSON, F.H.

Washington, Government Printing Office, 1919.

STRONG, C.P.

Wellington, 1984.

HANSEN, HANS JØRGEN.

Copenhagen, 1970.