315 
and general shape of the lobes is said to be the same. As this fern occurs intimately 
mixed with the preceding on the same slab, it must be retained as a variety, although 
individual specimens here and there differ widely. It is not unlike an Eremopteris. 
Loo. With the preceding, and in the Bnrrum Coal Field {W. S. Lands'). 
Genus— TLIOSOMANITES, Goeppert, 183G. 
(Sy.st. ril. I’oss., p. 174.)* 
TjticuoiiANi'i'ES LAXtrir, Ten. Woods ? PI. 18, fig. 9. 
Trichoinanides laicuni, Ten. Woods, Proc. E. Soc. N. S. Wales, 1883, viii., Pfc. 1, p. 95, t. 10, f. 2. 
Sp. Char. Ehizome creeping, long, slender, sending up at distant irregular 
intervals delicate membranaceous pinnate fronds ; piniuo emerging at au acute angle, 
linear, or cutieato, bifurcating with one simple free vein to each lobe. (^Teit. Woods.) 
Ohs. T. laxum is said to be distinguished from T. elom/ata, Carruthers, sp., by 
being much smaller, and consisting “ of short pinnate fronds proceeding at irregular 
intervals from the slender creeping rhizome.” 
Mr. R Kidston believed ho could recognise this amongst Mr. Bands’ Collection 
of plants from the Burrum Coal Field. Ho remarks as follows : — “ This fossil shows 
a fragment of a very graceful species. The pinnules are divided into a number of 
simple, or bifid-linear, acute segments. The characters of T. laxum are simply 
unintelligible. If Mr. Tenison Woods supposed bis figure to represent a rhizome, as 
I am led to think from his description, there appears to be a mistake in the interpre- 
tation of the fossil, which more probably shows part of a compound frond.” 
Loo. Burrum (W. S. Lands). Occurs also at Eosewood, near Ipswich. 
Family— NEUEOPTERID^. 
Genus — TRINNFELBIA, Biting shausen, 1852. 
(Abhandl. K. K. Geol. Eeichsanstalt, i., Abth. 3, No. 3, p. 1.) 
TniNNEELDiA MEDIA, Ton. Woods, PI. 17, fig. 2, PL 18, fig. 10. 
(Compare PI. 17, f. 7.) 
H’hinn/cldia media, Ten. Woods, Proc. Linn. Soc. N. S. Wales, 1883, viii., Pt. 1, 13. 102, t 6, f. 1. 
(Compare Thinnfeldia indica, Peistmantel, Pal. Indica (Gondwana Plora), 1877, i., Pt. 2, t. 39, f. 1, '^■d, 
t. 40, f. 1-2 a.) 
Sp. Char. Frond bipinualc? pinnre quite close, nearly opposite, broadly lanceo- 
late, broadly obtuse ; the lower ones shorter, attached by the whole of the base where 
it is only very slightly constricted ; veins only faintly visible, but there are traces of a 
costa in nearly all the pinnules, which is evaneseept ; rachis very thick. {Ten. Woods.) 
Ohs. These characters were assigned by the Rev. Mr. Woods to a plant from 
the Hawkesbury Sandstone of Dubbo, which he compared to Thinnfeldia indica. Feist- 
mantel. “ It bears some resemblance to T. indica, Feistmantel, and more to T. 
decurrens, Schenk.” 
With specimens of the Dubbo plant I am not acquainted, but in referring 
the Queensland ferns (PL 17, fig. 2, and PL 18, fig. 10) to T. media I am simply relying 
cn Woods’ description, and his reference to T. indica, to which the figures undoubtedly 
liave a strong resemblance. It must, however, be acknowledged that such a point as 
“ veins only faintly visible ” does not wholly agree with our specimens ; but on the 
other hand, “ attached by the whole base,” “ traces of a costa,” and “ rachis very 
* Die fossiliea Parrnkriluter [Nova Acta. Acad. Lcopol. Carol. Guriosorum, Bd. xvii., Supiil.) 
