6 
that in the Diatom-earth bed of Silstrup, Mors, and the north side 
of Fuur he has found »Insekter, navnlig en stor Cimex (Scarabæus 
Forch.), Coreus, Termes etc. (bestemte af Prof. Schiødte).« 
Records in the world literature of Eocene insects from other coun¬ 
tries than Denmark are likewise only scanty 1 ) particularly so when 
compared with the rich fauna known from later periods of the Ter¬ 
tiary age, especially the Miocene. 
As to the Arctic Regions Heer in his great work Flora fos- 
silis arctica 2 ) has recorded the following forms from strata which are 
now generally considered to be Eocene: 
*) We do not consider the amber fauna here which, at any rate as far as 
certain groups are concerned, has called forth a relatively rich literature, 
but the Eocene age of which is certainly most problematic (see later on). 
a ) Complete list with cross references in the 7th Vol. of this work (Flora 
fossilis groenlandica II) 1883 p. 143—146. 
