ISO 



Carboniferous. Cases 15-17. — Corals and numerous bracliiopods, especially a 



"a winged" form — Sjnrifer and Producfus. The extinct plants 



Lepidodendron and Mhacopteris are cliaracteristic. 



Lfpidodendron is allied to the little club-mosses of the present day, but 

 grew to a much greater height. 



Permo- CaSBS 18-27. — This is the formation in which the coal beds of 



* New Soutli Wales occur. The variety of animal and plant life is 



very great ; and in some places the beds are crowded with fossils. 



Case 18. — Plants, such as the ancient fern Glossopteris. 



Case 19. — A curious eoral — stenopora ; magnificent fossil 

 star-fishes from Parley; sea-lilies (Crinoida) from Nowra. 



Case 20, 21. — Many varieties of the 'bvsich.io-pods Alartinwj)sis 

 and Sjnn'fer. 



Cases 22, 23, 24. — Gigantic bivalve shells. 



Case 25. — Orthoceras. 



Cases 26, 27.— Plants. 



!rrias-Jura. Eocks of this age constitute the Sydney district and the Blue 



Mountains (see page 176). 



Case 28. — Plants from Mount Victoria and Sydney. 



Case 29. — A little crustacean {Estheria) found at a depth in 

 the Cremorne bore and Balmain shafts. 



Small freshwater shells (JJnio). 



In a quarry at Gosford great numbers (and variety) of fish 

 have been found. These diff"er from modern fish in having an 

 external armour of strong scales in place of an internal bony 

 skeleton.* These will be found in cases 40, 41, and 42. 



This formation was deposited in the estuary of a big river. 



Cases 29, 39. — At Talbragar (Gulgong) beds of approximately 

 similar age occur, containing the plants exhibited here and the 

 fish in case 39. It will be readily seen that the fish differ from, 

 those found at Gosford, and resemble living forms in having a 

 eomplete bony skeleton. 



' - • * Fish armouiedjn this vraj' are known as <?anoicZs. 



