McKay.—On the Reptilian Beds of New Zealand. 585 
but as the bones only appear when the surface of the bed has been long 
exposed to the action of the sea, they are necessarily much eroded. 
From this bed I succeeded in securing two or three recognizable frag- 
ments of the fossil Penguin / Paleeudyptes antarcticus, Huxley), found in 
the limestone of Fortification Hill, Oamaru, and at Brighton, on the West 
Coast of the South Island. 
North of Amuri Bluff, at Kaikoura, and in the Clarence District, this 
horizon is represented as beds of greensand, interstratified with the upper 
part of the Amuri limestone; and further north, in the vicinity of Cape 
Campbell, this and the overlying Weka Pass stone is wholly represented by 
beds of greensand, with which the Amuri limestone itself is frequently 
interbedded. . 
In the Amuri limestone itself the fossils of the higher beds are found, 
and notable amongst these is a well known form of Pecten zettelii, which ` 
has never yet been found outside the chalk group of the cretaceo-tertiary 
formation in New Zealand. From the same bed whence the above comes 
I obtained Inoceramus, sharks’ teeth, and other remains of fishes, which are 
equally to be had in the marls above the underlying teredo limestone. 
In the lower part of the teredo limestone, fossils are met with which 
characterize the upper beds of the Amuri group, for which reason it is 
separated from the leda marls and Amuri limestone, and classed as the 
highest member of the greensand group. It is followed by the con- 
cretionary greensands, which, together with the boulder sands, and sulphur 
or gypseous sands, make up the saurian beds. Although abounding with 
saurian remains, these beds have not yielded fossil shells to the extent 
which might have been anticipated, although boulders containing shells 
frequently occur in the higher beds, and, invariably yield highly charac- 
teristic forms. In the Waipara District, the saurian beds are far more 
productive of fossil shells than the same beds at Amuri Bluff. 
The Amuri group, or lower division of the series, has for its highest 
member the black grit or pebble bed, rich in fossil remains, of which the 
greater number are found in the lower beds of this group. Yet many shells 
and most of the saurians are also to be had in the overlying greensand 
group. A considerable thickness of green and grey sands follows, in the 
lower beds of which small and irregular concretions, abounding in fossils, 
are to be had ; from which point, to the lowest beds of this section, fossils are 
extremely abundant and in great variety. The very lowest beds, seen only 
on the western wing, are brown or grey sands, with abundance of silicified 
wood, fragments of trees 18 or 20 inches in diameter. The upper beds of 
this group are represented at Boby Creek, Waipara River, by the calcareous 
semi-erystalline sandstone, with Conchothyra parasiticum, and other fossils, 
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