Daiinonelix and Allied Fossils. — James. 
341 
which envelopes them." Nothing approaching a perfect 
specimen has ever been found in New York or other localities 
where Spirophyton occurs. A comparison of Hall's figures 
showing the upper and lower surface of a whorl of 8. typum 
is very like a figure given by Barbour, as shown below. 
(Fig. 1.) There seems good reason to refer both to the same 
class of organisms. 
Fig. I. View of one coil of Daiinonelix robiista Barbour. (After Barbour.) 
A number of generic names have been given to the fossils 
described by Hall but Taonurus of Fischer-Ooster, proposed 
in 1858, is the same as Hall's Spirophyton and has priority by 
five years. 
There is still another genus of fossils which has evident 
affinity to those mentioned above. In 1883 Prof. J. S. New- 
berry read a paper before the New York Academy of Science* 
in which he described anew genus of "screw-like" fossils from 
the Chemung rocks of New York, under the name of Spiiraxis 
Two species, S. major and S. randalli, were described. They 
were simply casts in sandstone without any trace of animal 
matter. (PI. XII.) It was supposed that they might be Algae 
or sponges but no definite conclusion was reached. They 
have also been compared to eggs of fossil fishes. The rocks 
in which they occur are full of impressions oi Spfiropthyton (or 
Taonxiri(s) and this is significant in the light of our present 
knowledge. When we consider the theoretical plant of Hall 
and the presence of the spiral fossil of Newberry associated 
with fragments of Taonurus, the inference seems to be fair 
that the relationship is very close. Again when we note the 
*Descriptions of some peculiar screw-like fossils from the Chemung 
rocks. Ann. N. Y. Acad. Nat. Sci., vol. H, pp. 217-220, 188.5. 
