The Rolling Downs formation (Lower Cretaceous) of the Thompson and Flinders Rivers in Queensland has yielded remains of a Tortoise, _Notochelone costata_ (see _antea_, Fig. 17); and the interesting Fish-lizard _Ichthyosaurus_. Numerous and well preserved remains of _I. australis_ McCoy come from the Flinders River (Fig. 133); whilst _I. marathonensis_ is recorded from Marathon Station, Queensland. The former species is typically represented by a nearly complete skeleton, and was considered by McCoy to be one of the largest examples of the genus, since a perfect specimen would probably reach the length of 25 feet. Its teeth resemble those of _I. campylodon_, Carter, from the English Chalk. Of the Sauropterygia two species of _Pliosaurus_ (_P. macrospondylus_ and _P. sutherlandi_) have been described from the Lower Cretaceous of the Flinders River; whilst the latter species has also occurred at Pitchery Creek, Central Queensland and at Marathon. _P. macrospondylus_ is distinguished from _P. sutherlandi_ by the roughened edges of the vertebral centra. Another genus of the "lizard-finned" reptiles (Sauropterygia), viz., _Cimoliosaurus_, occurs in the Upper Cretaceous of White Cliffs, New South Wales (Fig. 134 B, C.) [Illustration: =Fig. 134--FOSSIL REPTILES.= A--Taniwhasaurus oweni. Hector. (Lower jaw). Cretaceous. New Zealand B--Cimoliosaurus leucoscopelus, Eth. fil. (Teeth). Up. Cretaceous. New South Wales C--Cimoliosaurus leucoscopelus, Eth. fil. (Phalangeal). Up. Cretaceous. New South Wales D--Miolania oweni, A. S. Woodw. Pleistocene. Queensland ] =Cretaceous Reptiles, New Zealand.--= The Waipara Series (Cretaceous) of New Zealand contains a fairly large number of reptilian species belonging to several genera among which may be mentioned _Plesiosaurus_, _Polycotylus_, and _Cimoliosaurus_ among the Sauropterygia; and _Tylosaurus_ and _Taniwhasaurus_ (Fig. 134 A), marine lizard-like reptiles, belonging to the sub-order Pythonomopha. =Cainozoic and Pleistocene Reptiles.--=