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RAYMOND: CORRELATION OF THE ORDOVICIAN STRATA. 201 
Wassalem thus shows at its type locality many of the characteristics 
ofareef. The outcrop of the Wassalem has a width of about two miles 
and south of it one finds blue and buff, very fine-grained dense lime- 
stone, somewhat purer than that at Kegel, but with the same fossils, 
Cyclocrinites spasskii (or C. roemeri, as Stolley calls it) being very 
abundant. This limestone appears to belong to the Kegel, though 
it has previously been called Wesenberg. The reasons for this belief 
are givaén on page 202. The Bryozoa described by Bassler as coming 
from the Wassalem were very probably derived from a lense of the 
fine-grained buff limestone associated with the reef, for their appear- 
ance and the lithology of their matrix is entirely unlike that of the 
typical Wassalem. (Plate 6). 
Wesenberg formation. E (Wesenberger schicht, partim), of Schmidt. 
The strata of this formation are well shown in three or four shallow 
quarries about one and one half miles southeast of the town from which 
it derives its name. The limestone is a very fine-grained, dense, blue 
to yellowish buff rock, so fine grained as to have received the name of 
“lithographic stone.” It is usually in layers three to five inches in 
thickness, the layers separated by thin shaly partings. The good 
fossils adhere to the limestone and stand out in relief when the shale 
is washed away. The deepest quarry shows a face of sixteen feet, 
the lower eight feet being compact light blue limestone and the upper 
eight feet somewhat less compact and more magnesian limestone 
which becomes yellowish on weathering. Lithologically these strata 
differ from the rocks of the Kegel] at Kegel in being less earthy, more 
compact, and in containing definite partings of shale. Fossils are 
exceedingly abundant in these quarries, the most conspicuously com- 
mon being Amphilichas holmi, Homolichas eichwaldi, Chasmops 
wesenbergensis, and Encrinurus seebachi. 
The Baltic railroad runs in a southwesterly direction from Wesenberg 
to Taps and thus traverses the outcrop of the Wesenberg diagonally. 
Between the two stations there are several small cuttings, one of them, 
about two miles east of Taps, being in strata very near the top of 
the formation. A tiny quarry, a few rods south of the railroad and 
near the stream just east of Taps shows strata even higher in the 
formation. In both localities the rock is a hard fine-grained yellow- 
ish to buff limestone, without shale, and fossils were exceedingly 
scarce. In the small quarry I obtained Clhtambonites wesenbergensis, 
a Discoceras, and Chasmops wesenbergensis, fossils which are char- 
acteristic of the Wesenberg at the type-locality. A half mile south 
of these outcrops one finds the Lyckholm, with typical fauna. 
