273 
Another fossil described as a fungus was later on shown not to be 
such. It was originally named by Goeppert Gyromyces ammonius. It 
Fig. 2.—Larval burrow of Bostryclms typographus. Nat. size. (After Hess.) 
was found in Saxony under the bark of certain coal plants and subse¬ 
quently in rocks of Carboniferous age in North America. It has been 
shown by Dawson to be really the spiral tube of an annelid, and was 
Fig. 3.—Burrow of Carphoborus bifurcus. Nat. size. (After Packard.) 
named by him Spirorbis carbonarius. Lesquereux also considered the 
fossil to belong to the animal kingdom and figured it as such in.volume 
2 of the Geological Survey of Illinois, 18GG (p. 462, pi. 38, fig. 6). 
