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4 
ZAMITES PECTINATUS. 153 
A portion cf a leaf nine inches long is here figured. The 
Lias of Dorsetshire has yielded many beautiful relics of this 
family.* 
But few vestiges of the foliage of Cycads have been 
observed in the Wealden formation of England ; one elegant 
leaf, however, of an undescribed \ 
‘species, was obtained some years 
since, from a sandstone quarry 
in Surrey, and is figured in my 
Geology of the South-east of’ 
England, p. 238; it is named in 
honour of my distinguished 
friend, M. Ad. Brongniart, Cyca- 
dites Brongniartt. The Wealden 
of the north of Germany is very 
rich in fossil Cycadee ; my 
friend, Dr. Dunker, has figured 
and described twelve species in \W 
his admirable work on the orga- 
nic remains of that formation.T 
Fruits—The cones or fruits 
which aaa pene foliage Lien. 47. Part of a leaf of ZAMITES 
of Zamize in the carbonaceous PECTINATUS; nat. 
shales and marls of the Oolite Donte ee ergicta- 
of the Yorkshire coast, are very fine, and have been described 
under the various names of Zamites Mantelli, Z. gigas, and 
Z. lanceolatus. 
An interesting memoir on the structure of these fossils, 
by James Yates, Esq. (a gentleman distinguished for his 
knowledge of the recent Cycadacez), is published in the 
* In the carboniferous strata of Eastern Virginia, United States, 
which are referred by Professor Rogers to the Oolitic epoch, leaves 
of Cycadeous plants are abundant. See Trans. American Geologists, 
p. 298. 
+ Mon. Norddeutschen Weald. tab. i. to vii. 
