TKIASSIC FLORA OP BALI) LULL. 
England, (xraliam Land and India. It persists also in southern 
areas in .Jurassic times, as it is found in tlie Walloon series in Queens- 
land, as well as in New Zealand. Its latest ap])earance is in the 
Wealden of Lpper (lermany and the Cretaceous of (Jreenland. 
This fluctuating distribution is at least ])u;5zling and suggests some 
curious ])alaeogeogra})hical questions. 
The Cinkgoales, re[)i'esented by Haiera as the older type, and 
Ginkgo or Ginkgoites, range from the Permian, till to-day. Baiera 
itself occurs in the Permian of France. In the Trias-Hhaetic it 
is fouml both in Europe and the later Comlwana areas. The -Jurassic 
period saw it exteiuling to North America, where it persisted till 
Lower Cretaceous times. 
d'he type ol the living Gutkgo dates from the Trias of Adctoria 
and the Hhaetic of South Africa. 
Amongst the genera of uncertain position, but allied to the Cyca- 
dales or Cinkgoales, are Phoenncojjsis and PsygmophijUnm. The 
genus BhoeHK‘Oj)shH, like several other generic tyf)es enumerated 
here, ap})ears to have commenced its existence in the Southern 
J^Iemisphere, as it occurs in the [iresent Triassic series and also in 
the Hhaetic of South Africa. It later made its aj)pearance in 
Europe, in the .Jurassic, at which time it was alsf) a well known. 
comj)on,ent of the Australo- Indian series. 
/Gip/niophijUimK The range of this genus (in, a less restricted 
form), is given as from Devonian to Permian. It is interesting 
to note the geographical distribution of the genus, wdiich in Devoniaii 
and Carlioniferous times was confined to Eurojje and North America. 
It then apparently S])read to ( londwanaland in. the Permian, where 
it is found in the South African and probably Australia (New South 
Wales) series of rocks. This ])resent occurrence, in the Trias of 
\dctoria, of examples (]uite typical of Idndley and Hutton's ( Arboni- 
ferous fossils from the English Newca.stle Coal Measures, is there- 
fore highly interesting as a record of persistence into the Mesozoic. 
Of the Coniferales, BmcJu/phglhnn has hitherto been confined 
almost entirely to the .Jurassic rocks of England, France, India 
and Australia ; but it has survived into the Lower Cretaceous of 
Portugal and the Dakota Croup of North America. The oldest 
record, that of the present, Triassic occurrence at Bacchus Marsh, 
is further confirmed by the discovery of the genus by Newell Arber 
in probable Hhaetic rocks of Otago, New Zealand, 
In Blatocladus, which accoriling to Halle‘S should include 
sterile Coruferous branches of the radial or dorsi-ventral tvpe, 
which do Tiot show any characters which permit them to be includeil 
in one of the genera instituteil for more jieculiar forms," we have 
a generic type similarly found in, the Bhaetic of New Zealand as 
4:> Halle, 19l:l, vul. 111., ]t. XIV., p. 8:J. 
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