106 
Thinnfeldia odontopteroides, tar. falcata, Ten. Woods. 
Thinnfeldia odontopicroidcs, var. falcata , Tenison Woods, loc. cit., 1883, p. 107, PI. 8, f. 1. 
Ohs. — The only difference from T. odontopteroides appears to he that 
the pinnules become long and falcate as they ascend the racliis. 
Locality and Horizon. — Abundant at the Rosewood Scrub, about ten 
miles from Ipswich, Queensland (Upper Mesozoic). 
Mr. Johnston ( loc . cit., 1885) distinguishes still two other varieties of 
Thinnfeldia odontopteroides, viz.:— 
Thinnfeldia odontoptehoides, var. superba, Johnston. 
Thinnfeldia odontopteris, var. mperba, Johnston, loc. cit, 1885, p. 30. 
Locality and Horizon. — In shales associated with the coal seam at 
Spring Bay, Tasmania. 
Thinnfeldia odontopteroides, var. obtusifolia, Johnston. 
Thinnfeldia odontopteroides , var. obtusifolia, Johnston, loc. cit., 1885, p. 29. 
Locality and Horizon. — In shales at the foot of Spring Hill, Tasmania. 
Thinnfeldia trilobita, Johnston. 
Thinnfeldia trilobita, Johnston, loc. cit., 1885, p. 30. 
Sp. Char. — “Frond bipinnate; (?) pinnae linear elongate, dichoto- 
mously divided ; pinnules pinnatifid, coriaceous, oblique, opposite, truncately 
narrowly strap-shaped, invariably terminating in three variably shaped digits 
or lobes, the central one of which is usually the most prominent ; veins 
obscure, not well defined ; adjacent margins of pinnules run closely parallel 
to each other, joining in a rounded sinus near to the racliis, giving to the 
latter the appearance of a broad marginal wing ; racliis strong and grooved ; 
average breadth of pinna, 15 millimetres ; average length of pinnules, 9 mm.; 
breadth, mm.” 
Ohs. — As in Mr. Johnston’s paper, there are no figures of the described 
specimens, it is quite impossible to form any idea of the relations of the 
fossils. 
Locality and Horizon.— In shales beneath the coal seam at Spring Bay, 
Tasmania (Upper Mesozoic). 
