368 
T. elongata would appear to be a less rigid aud more laxly growing fern 
than T. spimfoUa, Woods. The apiniform pinnules are also absent, but specimens 
conform much more to Woods’ description of the terminal pinnules of his species. 
A stouter and more rigid-looking variety has been eollected by Mr. G-. Sweet, at 
Thomas’s Mine. The midrib is also less distinct and the pinnules are striate. 
Loo. Tivoli Coal Mine, Ipswich (The late It. Daintree) ; the same and Thomas’s 
Aberdare Coal Mine, Ipswich (The late Eev. J. E. T fToo*— Macleay Museum, 
University of Sydney; G. Sioeet—CoWn. Sweet, Melbourne). 
r amily — NEUEOPTE RID^E. 
Genus— TJIINNFELEIA, Ettingslmiisen, 1852. 
(Abhandl. K. K. Geol. Reichsanstalt, i., Abth. 3, No. 3, p. 2.) 
THimEELDiA. ODoyTOPTEEOiDES, Morris, sp., PI. 17, f. 1, and ? PI. 17, f. 7. 
Pecopteris odoiUopteroidcs, Morris, Sfcrzeleolci’s Phys. Desorip. N. S. Wales, &c., 184.5, p. 249, t, 6, f. 2-4. 
(?leicAc«too(tontoptero!*s, McCoy, Ann. and Mag. Nat. Hist., 1847, XX., p. 147. 
? CycadopterU odontopterokles, Sehimper, Traite Pal. Vdg., 1809, i., p. 488. 
Alethoptaia ? odontopteroides, Sehimper, Ibid., p. 509. 
Pecopteris odontopterokles, Carruthers, Quart. Journ. Geo!. Sue., 1872, xxviii., p. 355, t. 27, f. 2 and 3. 
Odontopteris odontopteroides, Crt'piu. Bull. Acad. R. Belgique, 187.5, xxxix,, p. 258, f. 1-5. 
Thinnfddia odontopteroides, Foistmantel, Pal. lndica(Gondwana Flora), 1879, i., Pt. 4, p. 201 ; tlhid., 1881, 
iii., fas. 3, p. 85, t. 23a. £. 7-9. ’ ’ 
>> » Feistmantel, Palaeontographica, 1878, Siippl. Bd. iii.. Lief 3, Heft 3, pp. 89 and 
105, t. 13, f. .5, t. 14, f. 5, t. 15, f. 3, t. 10, f. 1; Ibid., 1879, Heft 4, p. 165, t. 9 
(27), 11 (29). 
» » Ten. Woods, Proo. Linn. Soc. N. S. Wales, 1883, viii., Pt. 1, p. 103. 
>> >. Curran, Ibid., 1884, i.x., Pt. 2, p. 252, t. 9, f. 4. 
Ohs. A full description of this characteristic Australian fern will be found in 
the late Eev. J. B. Tenison Woods’ Memoir, translated from Peistmantel, with an 
abridgment of the latter s remarks. The species passes through endless varieties, some 
of which will no doubt in the future be better for names. This will account for the 
evident discrepancy which exists between the single figures of various Authors ; 
but when a series of specimens are assembled from a given locality, at which the fern 
is found in abundance, it is at once seen how these diversified forms all graduate one 
into the other. 
It was doubtless a very large fern, and some idea of this can be gathered from 
Pis. 9 (2/) and 11 (29) of l)r. Eeistmantel’s Memoir, and before me is an example of no 
mean size, from Eundanba, measuring ten inches in length. Prom Ipswich we have 
examples with the pinnules resembling Eeistmantcl’s PL 9 (27), fig. 1, but of rather 
smaller growth. Prom Mount Esk is a good terminal pinnule allied to the right hand 
of the two figures given on the same Author’s PI. 10 (28). At Kilcoy Range occurs a 
form with the square step-like pinnules resembling Mr. Carruthers’ figure; and, lastly, 
from Petrie s Quarry, Brisbane, we have a specimen bearing a strong resemblance to 
Morris’s original figure in Strzelccki’s work (t 6, f. 4). 
In Queensland, Thinnfeltlia would appear to occupy a relatively higher position 
than it does in New South Wales. I am not aware of its occm’rence below the Ilawkes- 
bury Series in tne latter Province, but in Queensland it seems to be characteristic of one 
or more higher horizons. 
The nearest allies are, according to Dr. Peistmantel, T, subtrigona, Peist., in 
the Mesozoic rocks of India, and T. crassinervis, Geinitz, in similar rocks of the Argentine 
Republic. 
