﻿PRESERVATION AND EXTERNAL CHARACTERS. 



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that no more of an original group remained ; but further excavation in the sand- 

 rock brought to light three trunks from about equal intervals outside the position 

 of the earlier excavation. These specimens are all of the same stage of fructifica- 

 tion, and of the same general appearance, so that in any case the inference that they 

 are the slightly separated branches of the same group is very strong. The larger 

 of the three branches weighs 147.3 kilograms ; it is the heaviest'siugle Cycadeoidean 

 branch ever recovered and is finely conserved. This magnificent specimen is shown 

 on plate v, figure 1, where the side on which it was attached to other members of 

 the clump to which it belonged will be at once noted. The connection of the 

 members of the group had, however, with the attaining of such great size on the 





Fig. 12. — Anomozamites minor Nathorst. 



Triassic of Southern 1 Sweden. The foliage is Nilssonia-like, and various ovulate cones of the true Williamsonia type are 

 produced in bifurcations of the much branched stem. About one-fifth natural size. From Nathorst. (Cf. figure 10.) 



part of a single branch, begun to be obliterated. It is very unfortunate that it has 

 proved impossible thus far to determine which were the other trunks originally 

 associated with these three specimens. The entire group may have included 

 six brauches with a total weight of more than 500 kilograms. 



A compact, low-growing cluster of branches of rare beauty, all of which spring 

 from a central trunk, is that numbered 164 in the Yale collection, a typical 

 C. Marshiana, figured on plates vii and viii. Six of the nine distinct branches 

 forming this specimen cluster about its two main central trunks, and it may be 

 readily determined from the size and position of the branches with respect to the 

 basally exposed xylem that the entire group arose thus : First, the larger main 



