Part III. Sucr. ii, § 1] JURASSIC. 771 
- Australia.In New South Wales, Victoria, and Queensland an 
important coal-bearing series of strata occurs, containing a flora which’ 
has many affinities with that of the Trias of Europe and of Asia. Among 
its plants are species of Cyclopteris, Gangamopieris, Glossopteris, Odontopteris, 
Pecopteris, Sphenopteris, Tzeniopteris, and Zamites. 
Section II.—Jurassic System. 
The position of this great series of fossiliferous rocks was first 
recognized in the geological series in England by William Smith, 
and received the name of “ Oolitic ” from the frequent and character-, 
istic oolitic structures of many of its limestones. Lithological names 
being, however, objectionable, the term “Jurassic,” applied by the 
geologists of France and Switzerland to the great development 
of the rocks among the Jura Mountains, has now been universally 
adopted. 
§1. General Characters. 
Jurassic rocks have been recognized over a large part of the world. 
But they no longer present that general uniformity of lithological 
character so marked among the Paleozoic systems. The suite 
YL. 
Z 
Ss 
Ln 
\ \ \WSs 
y / Vy d yy Dy 
\\ 
\\ ‘\ \\ 
yA 

‘AWM Nan NM 
\\\ 
ni) 
Te 



fot 
Wl o oes). 
z (002.2 = st: 
i EIMIsSIsiid oo ow 8 OOS aes 
te} 
||\C Oo CoG 5000 2 Sa 

Fie. 363.—Jurasstc Ferns (Lower Oolite). 
a, Sphenopteris trichomanoides (Brongn.); b, Tzniopteris major (Lindl. and Hutt.) (2); 
C, Pecopteris dentatus (Lindl. and Hutt.) (mat. size and mag.); d, Phlebopteris 
polypodiodes (Brongn.) (nat. size and mag.). 
of rocks changes as it passes from England across France, and is 
replaced by a distinctly different type in Northern Germany and by 
another in the Alps. If we trace the system further into the Old 
oboe 
