THE TRIASSIC UPERDOD: 209 
on the continent of Europe, and from the St Cassian and 
Rheetic beds still higher in the series; whilst some of the 
Fig. 141.—Triassic Conifers and Cycads. a, Voltzia (Schizoneura) heterophylla, por- 
tion of a branch, Europe and America; 4, Part of the frond of Pterophyllum Fegeri, 
Europe; c, Part of the frond of Podozamites lanceolatus, America. 
Triassic strata of California and Nevada have likewise yielded 
numerous remains of marine Invertebrates. The Pro/ozcans 
are represented by Foraminifera and Sponges, and the Celen- 
terates by a small number of Corads; but these require no 
special notice. It may be mentioned, however, that the great 
Palzozoic group of the Rugose corals has no known repre- 
sentative here, its place being taken by corals of Secondary 
type (such as Alontlivaltia, Synastrea, &c.) 
The Echinoderms are represented principally by C7zxoids, 
the remains of which are extremely abundant in some of the 
limestones. ‘The best-known species is the famous “ Lily- 
Encrinite” (Zucrinus liliiformis, fig. 142), which is character- 
fe) 
