18 
All the species, except the two Thinnfeldias proposed as new, have a 
wide geographical range in rocks of Jurassic age. Some idea of this wide dis- 
tribution of the species is given in the following table : — 
Table showing the wide Geographical Distribution of the Species of 
Plants occurring in the Talbragar Beds. 
.5 
a 
CZ 
c« 
< 
sz 
.5 
PQ 
o 
A 
o 
3 
w 
P 
.3 
a, Siberia, Ac. 
c 
h America. 
h America. 
cz 
ec 
ft) 
p 
<v 
o 
3 
u> 
P< 
o 
P 
-st 
K 
zfi 
O 
O 
-s; 
tn 
Cladophlebis australis 
Coniopteris hymenophylloides 
Thinnfeldia Feistmanteli 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
Thinnfeldia talbragarensis 
X 
... 
Thinnfeldia pinnata 
Tieniopteris spatulata 
X 
X 
X 
X 
I’odoza mites lanceolatus 
X 
X 
X 
X 
X 
X 
X 
X 
Araucarites (scales) 
X 
X 
X 
X 
X 
X 
X 
X 
BrachyphyUnm sp 
X 
X 
X 
X 
Elatodadus plana 
X 
X 
Pagiophyllum peregrin-urn 
X 
X 
X 
X 
X 
The absence of Ginkgo and Baiera calls for remark. These are of very 
widespread occurrence in Jurassic strata, and it is remarkable that there 
appears to be a complete absence of anything which might possibly be referred 
to either genus from the Talbragar collections. 
Cladophlebis australis is one of the commonest and most widespread of 
Mesozoic plants. It occurs abundantly in rocks from Upper Triassic to Lower 
Cretaceous, and is of world-wide geographic range (see table). In Australasia 
it is common in Upper Triassic (Ipswich, Queensland), Rhsetic (New Zealand), 
Jurassic (Queensland and Victoria), and Lower Cretaceous (Burrum Series, 
Queensland) rocks. It is perhaps remarkable that it is of such rare occurrence 
in the Talbragar Beds. 
Coniopteris hymenophylloides is another very cosmopolitan type, but 
has a more restricted vertical range, being most prominent in the Jurassic ; 
probably many examples of very similar types of sterile fronds described from 
Lower Cretaceous rocks represent this or very closely allied species. 
Thinnfeldia has a range in Australasia from Triassic (Narrabeen Series) 
to Jurassic (Walloon Series). It also occurs in South Africa, in the Stormberg 
Series, and South America, at Cacheuta, in rocks that are of Upper Triassic 
or Jurassic age. 
\ 
