Om Skånes brachiopodskiffer 
87 
Brachiopod beds. — At loc. T 8 — T 9 there is an almost entire profile through the 
Brachiopod beds and the underlying stratum, the Staurocephalus beds. The former 
consists of the layers g—w, the latter of d — e (p. 23 — 27). 
3. The Brachiopod beds may as mentioned be divided into two divisions or 
subzones the distribution and thickness of which are shown in the table on p. 82. 
As to the fauna the dissimilarity of the subzones is shown in the table on p. 83. 
The subzone of Dalmanites eucentrus which is the earlier one is above all characteri- 
sed by its abundance of ostracoda. On that account and because of the character 
of the rock this part of the Brachiopod schists is very likely to have been depo- 
sited in a shallow water, where the external conditions have been unsuitable for 
the trilobites and this has caused the disappearing of the abundant trilobite fauna 
of the Staurocephalus beds. The upper subzone is more calcareous than the lower 
one and forms what concerns the rock a transition bed to the graptolite bearing 
strata (z. of. Climacograptus scalar is). It is poorer in fossils than the lower subzone. 
4. In the Brachiopod beds 46 (48) species are found instead of the' 5 (8) 
before known (p. 79, the left side of the table). Of these species 21 are proved to 
be new, 4 are not before seen in Sweden, 10 are earlier known Swedish species, 
and the remaining 11 (13) have been determinable only as to their genera. The 
vertical and horizontal distribution is shown in the table on p. 83. 
5. The fauna of the Brachiopod beds is largely composed of species from 
the Staurocephalus zone but is poorer especially in the trilobites. Its Ordovician 
character is predominating. As Gotlandian species or types we must regard Discing 
cfr orbiculoides Krause, Rhynchonella borealis (?) Schloth., Bucaniella atava n. sp., 
Æchmina Grönwalli n. sp., and Jonesina reel angularis n. sp. The plenteous western 
elements which characterize the contemporaneous fauna of Västergötland, Dalarna, 
and the Silurian area of Christiania can be traced here almost only what concerns 
the species remaining from the Staurocephalus zone. 
6. The Brachiopod beds and their overlying stratum, the zone of Climacograp 
tus scalaris , correspond to the Brachiopod beds of Västergötland, the etage 5 ft in 
Norway and the Ashgill Shales of the Lake District of England. 
7. The zone of Staurocephalus clavifrons Ang., not before known from the 
SE of Skåne and here only mentioned in passing — cf. the fossil lists on pp. 
11, 16, 18 and 21 — 24 — is equivalent to the same zone of Västergötland, the 
etage 5 a, the Gastropod Limestone, of Norway, and the Staurocephalus Limestone 
of England. In the province of Skåne it is nearly connected with its underlying 
stratum the zone of Ampyx Portlodci Barr. 
