A—Gosseletina australis, Eth. fil. sp. Carboniferous. N.S. Wales
B—Yvania konincki, Eth. fil. Carboniferous. N.S. Wales
C—Loxonema babbindoonensis, Eth. fil. Carboniferous. N.S. Wales
D—Pleurotomaria (Ptychomphalina) morrisiana, McCoy. Carbopermian. N.S. Wales
E—Platyschisma oculum, Sow. sp. Carbopermian. N.S. Wales
F—Murchisonia carinata, Eth. Carbopermian. Queensland
In New South Wales the best known genera are Pleurotomaria, Murchisonia, Bellerophon, Euomphalus and Loxonema. The two latter genera have also been obtained at Barker Gorge, Western Australia.
Carboniferous Gasteropods.—
Carboniferous Gasteropoda have been found in New South Wales, belonging to the genera Gosseletina (G. australis) ([Fig. 100 A]) and Yvania (Y. konincki) ([Fig. 100 B]), both of which have their countertypes in the Carboniferous of Belgium. Y. konincki is also found in the Carbopermian (Gympie beds) of Rockhampton, Queensland, while Y. levellii is found in the Carbopermian of Western Australia.
Carbopermian Gasteropods.—
The Carbopermian gasteropods of New South Wales are Pleurotomaria (Mourlonia), Keeneia platyschismoides, Murchisonia, Euomphalus, Platyschisma (P. oculum) ([Fig. 100 E]), Loxonema and Macrocheilus. Examples of the genus Conularia are sometimes found, probably attaining a length, when complete, of 40 centimetres.
In Tasmania we find Conularia tasmanica, a handsome Pteropod, also of large dimensions. Platyschisma, Pleurotomaria (Mourlonia), Bellerophon and Porcellia are amongst the Carbopermian Gasteropods of Queensland.
In Western Australia Pleurotomaria (Mourlonia), Bellerophon, Euomphalus, Euphemus, Platyceras, and Loxonema occur in the Carbopermian.