1120 ON THE BILOELA LABYRINTHODONT, 



history of both countries, which, however, must be passed for the 

 present, I mention the subject here only to note that in New 

 Zealand also, as well as in New South Wales, Labyrinthodont 

 remains have been found, as in the Kaihiku, at Nugget Point, 

 Otago, and in the Otapiri, in the Wairoa district ; and that the 

 great Eosaurus (?) of Mount Potts, so bulky that in some vertebrae 

 the centrum is 18 inches in diameter, is also referred, though with 

 some hesitation, to the same order (Hector I.e.). 



Note 1. — After the preceding paper had been read, on November 

 30, I received a note from Mr. Wilkinson informing me of the 

 discovery of a ' Baby Labyrinthodont ' in the railway excava- 

 tions, near Gosford. Two other Labyrinthodont fossils have also 

 turned up from the Wianamatta at Bowral. The first however is 

 from one of the intercalated shales of the upper portion of the 

 Hawkesbury sandstones, and not in the higher Wianamatta beds. 



These help to mark the horizon, upon which such remains may 

 be sought for with good hope of success, as that of the upper and 

 irregularly bedded portion of the Hawkesbury, and the lower 

 beds of the Wianamatta formation ; contemporary, it may be, 

 with an early stage of the basaltic eruptions which have formed 

 the rich lands of the Upper Nepean and Wingeecarribee, and 

 have also intersected with a net work of dykes and small cones of 

 volcanic rock the whole valley of the Nepean from Bazorback to 

 Pennant Hills. The shales are certainly younger than some of 

 the igneous rocks of the district, and older than others, as is 

 shown from the instance of Prospect Hill by the late Wm. 

 Clarke (Sedimentary Formations, p. 73;, so that the whole 

 region must have been subject to volcanic outbursts and 

 disturbances during long geological periods (though interrupted 

 probably by intervals of repose), commencing with the close of 

 the Permian, and ultimately dying out in the early Tertiary. 



Note 2. — In the piece of rock alluded to in Note 1, Palceoniscus, 

 Cleithrolejyis, and another Ganoid, are associated with the Labyrinth- 

 odont. This discovery therefore helps to bind the Wianamatta 



