1913] A FOSSIL-BEARING DEPOSIT 5 



6 mm. Fine sand of a yellowish-grey colour, but the 

 upper two millimetres assume rusty-brown colour 

 forming a solid, conglutinated layer the thickness 

 of which may rise to one centimetre. 

 32,5 — Fossil-bearing clay of a yellowish-grey colour. It 

 is a very fine clay, that is, however, mixed with 

 a litt Je sand of the same colour and very fine 

 too. This stratum is finely laminated in layers to 

 the thickness of about one millimetre separated by 

 layers thin as paper. This layer proved to be 

 rich fossil-bearing, containing numerous remains, 

 not only of mollusca and gastropoda, but also 

 remains of trees, shrubs and other flowering plants. 

 The following fossils were found: — 



Cardium edule Lin. forma typica was rather numerous, 

 but, as a rule it was, however, of a rather small size, and, often 

 this species occurred in casts representing complete specimen. 



Montacuta bidentata Mont. forma typica. 



Tellimya ferruginosa Mont. corresponding to the species 

 figured by G. 0. Sårs (Moll. Reg. Aret. Norv. Univ. Prog. 1878, I, 

 Pl. XX, Fig. l)'as well in the shape and form of the shell as 

 in the structure of the hinge. The size was quite normal. This 

 species was rather common occurring in casts often representing 

 complete specimens. 



Abra longicallis Sc. was rather numerous in casts of forma 

 typica, perhaps, as a rule, rather small. A couple of relatively 

 small specimens was found to be of a rather convex type 

 that also in other respects made one be reminded of A. alba 

 Wood, var. 



Macoma calcaria Chemn. 



Margarita helicina Fabr. occurred in a small and somewhat 

 imperfect east of the same type that I have, on another occasion 

 (Tapes decussatus Lin. og Tapes-niveauets geologiske stilling, 

 1905, p. 5) described from a Tapes-bank in the neighbourhood 

 of Christiania. 



