8 
Sterile examples of the species are of common occurrence in the Tal- 
bragar collection, but so far no fertile fronds have come under notice. The 
specimens figured are typical examples, and exhibit no differences from examples 
figured from other parts of the world. Similar specimens occur in the 
Jurassic Rocks of Victoria 1 and New Zealand, 2 and also in the Clarence 
Series of New South Wales. 3 
Thinnjddiecc. 
THINNFELDIA. 
Having had the opportunity of examining some of the plates of an 
unpublished manuscript of Kurtz, I am able to add a little information con- 
cerning the distribution of the Australian species of this genus. For the loan 
of these I am indebted to Mr. W. S. Dun. Kurtz figures numerous examples 
of Thinnfeldia odontopteroides, Fnitl., and of T. lancifolia from Cacheuta 
(Mendoza), South America. He also figures a number of specimens, for which 
his manuscript name is T. intermedia, but some of these are without doubt to 
be referred to T. odontopteroides, and the others to T. lancifolia. His figures 
of a proposed new variety, T. lancifolia var. quadrata appear to be only 
examples of T. odontopteroides. Other figures are labelled T. lanceolata (Morr.) 
Szajn. ; this is probably meant for T. lancifolia. Szajnocha 4 had earlier 
described and figured both T. odontopteroides and T. lancifolia, from the same 
locality, and also gave a figure of a new species of Cardiopteris, C. zuberi. His 
figure 5 of this is obviously portion of a frond of Thinnfeldia Feisimanteli. 
The three common species of Thinnfeldia in the Triassic and Jurassic 
rocks of Australia are therefore well represented in rocks of similar age in 
South America. 
Antevs, 6 in a paper only recently to hand, records and figures T. 
Feistmanteli from Mayils Well, near Derby, North West Australia, embedded 
in a light-gray clay at a depth of 300 feet. This is, as far as 1 know, the first 
record of any such fossil from North West Australia, and its occurrence in 
association with a fragment of Ptilophyllum ? would seem to indicate a Jurassic 
age for some of the rocks in that region. 
1 Seward (04a), p. 103, figs. 0-9. 
2 Arber (17), pp. 32-34. 
3 Walkom (19), p. 183. 
4 Uber fossile Pflanzenreste aus Cacheuta in der Argentinischen Republik. Sitz. K. Akad. der Wiss., 
xcvii, 1889, pp. 219-245. 
s Op. cit., t. 2, fig. 1. 
B K. Sv. Vet. Akad., Handl., lii, No. 5, 1913. 
