296 W. G. Fearnsides—Lower Ordovician Rocks of Scandinavia. 
alternating of Dictyonema shale and Obolus conglomerate from the 
Orthoceras limestone above. In Central Oland the glauconite shales 
and Ceratopygekalk attain their maximum thickness of nearly seven 
feet, but in the north are again reduced to little more than one foot. 
In Vestergotland the detailed succession is particularly variable. 
Fossils are abundant, especially in the dark pyritous limestone of 
Hunneberg and Halleberg (W 6), where, however, only the very 
highest beds of Brégeer’s say (K1) seem to be represented, At 
Kinnekulle (W 2) the. succession is much the same as in South Oland, 
and the creamy limestone is equally fossiliferous. The passage up at 
both these places takes place through alternations of shales and lime- 
stones, and well-preserved Arenig graptolites can be found within a foot 
of the Ceratopygekalk. In the south of Falbygden (W 4 and W 5) the 
beds are less than three feet thick, and the limestone and glauconite 
alternate with thin bands of pale-green shale like the ‘eraptolite 
shales above. At Klefva on Mosseberg the whole division is reduced 
to a single inch of glauconitic sand or shale, and the Phyllograptus 
angustifolvus of the higher series can be obtained within three inches 
of fine specimens of an early type of Dictyonema. Near Skofde (W 8), 
in the northern part of this district, a most unusual bank of amorphous 
blotchy limestone, 20 inches thick and without Korrosionsgruppar, 
separates the two feet of glauconitic limestone from the shales 
above. About Berg (E1) in Ostergdtland the Glauconiteskiffer is 
unconsolidated and very like the ‘slubber’ from the washing of 
Cambridge Greensand; the green limestone above is like the upper 
limestone of Kinnekulle, and Taust represent a very high Ceratopyge- 
kalk horizon. 
In Nerike the Ceratopyge beds have been said to be missing. Shales 
with Shumardia are described by Wiman' as occurring some distance 
above the basal glauconitic marl. The beds here show well-marked 
Korrosionsgruppar, but are referred by Wiman to the Planilimbaten- 
kalk, so the question must be regarded as still sub judvce. 
Glauconitskiffer have already been mentioned as occurring among 
the drift of Gefle, where they contain the rich fauna described by 
Wiman (B 1). 
In Dalarne, as seen in the Rettvig—Vicarby railway cutting, the 
Obolus Apollinis conglomerate passes up into rather finer but similarly 
constituted beds containing much glauconite. These are some three or 
four feet thick, and are overlain by a six-inch bed of loose glauconite sand 
and another six inches of green limestone with Korrosionsgruppar and 
Symphysurus, which in my opinion must be the Ceratopyge beds of 
the country. They are succeeded by some seven feet of beds in 
which limestones with Korrosionsgruppar developed to perfection 
are interbedded with thin shales which yielded me ill - preserved 
Shumardia, and with them such indications of graptolites that I was 
compelled to refer them to the Phyllograptusskiffer above. Wiman, 
however, in his latest paper, G.F.F.S., November, 1906, has shown 
that a Cer atopyge fauna is developed both here and at several other 
places in Dalarne. 
* 1 ¢¢ Kin Shumardiaschiefer bei Lanna,” in Nerike. Arkiv for Zoologi Kglsy. Vet. Ak. 
Stm., 1905. 
