MEMOIRS OF THU QUEENSLAND MUSEUM, Vol. X., Part I. 
KRONOSAURUS QUEENSLANDICUS. 
A GIGANTIC CRETACEOUS PLIOSAUR. 
By Heber A. Longman, F.L.S., C.M.Z.S. (Director). 
(Text-figures 1-5.) 
In 1924 a new gigantic marine reptile from the Queensland Cretaceous was 
described by the writer under the name Kronosaurus queenslandicus. * 1 The type 
material consisted of a fragment of a very massive sauropterygian mandible, 
svmphyseal region, with the remains, largely alveolar, of six very large thecodont 
teeth. These teeth had a maximum diameter of 40 mm., and it was suggested 
that they attained at least 250 mm. in total height, being comparable 
•with those of Pliosaurus grandis. This fragment was forwarded from 
Hughenden, Central-western Queensland, by Mr. Andrew Crombie in 1899. 
It is pleasing to be able to record that, through the kindly interest and 
enthusiasm of Mr. H. A Craig, Mr. W. Charles, Head Teacher of the Hughenden 
State School, and Mr. N. E. Anderson, additional material of this marine reptile 
has been found. This was discovered in August, 1929, by these three gentlemen 
near a locality in which Mr, Charles had previously found fossils “ two miles 
south of Hughenden.” In all lifteen fragments were forwarded, but some of 
these were small specimens that were so much abraded that none of the 
original contours were preserved. The two largest fragments consisted of the 
proximal ends with portions of shafts of two long bones, which are of out- 
standing significance, as they apparently represent the largest marine reptile 
yet recorded. As will be seen, the dimensions of the preserved portions are 
in excess of the corresponding measurements for M egalneusaurus rex (Knight) 2 
from Jurassic beds, Wyoming, America, previously regarded as the largest known 
Pliosaur, first described as Cimoliosaurus rex . 3 
When the type of Kronosaurus was described it was realised that it 
represented a gigantic form, and although these later fragments from Hughenden 
arc disappointing in their state of preservation they add much to our knowledge 
of this Cretaceous Pliosaur, especially in regard to its dimensions, although mere 
size is not, of course, an index to importance. 
Note. — In Greek mythology Kronos, son of Uranos, swallowed his first five children, lest 
they should livo to depose him. The sixth child, Zeus, was saved by his mother, Rhea, and 
ultimately deposed his father from the Olympian throne. — A. S. Murray’s “Manual of 
Mythology.” 
1 1924 : H. A. Longman, Mem. Qld. Mus., viii, pp. 26-28. 
: 1895 : W. C. Knight, Anver. Journ. Sci., 4th ser., vol. v, p. 378. 
* 1895: W. C. Knight, “Science,” vol. ii (n.s.), p. 449. 
