(81), 
ON THE REPTILIAN GENERA EUPABKEBIA BEOOM, AND 
MESOSUCHUS WATSON. 
By S. H. Hattghton, B.A. 
(Published by permission of the Rt. Hon. the Minister f or Mines and IndiLstries.} 
(With Plates II and III.) 
The genus Eujparkeria was founded by Dr. Broom in 1913 for the 
reception of a small Thecodont reptile from Aliwal North. The type of 
the genus is an almost complete skeleton including a beautiful skull and 
lower jaw. In his description of the form Broom differentiated Euparkeria 
from a genus Mesosuchus, the two having been grouped previously under the 
latter name by Watson, who was unaware of the existence of the skull of 
Euparkeria. 
The recent acquisition of the famous " Alfred Brown " Collection of 
fossils by the South African Museum has enabled more development work 
to be done on the masses of sandstone containing the Euparkeria and 
Mesosuchus remains, and the consequent discovery of more skulls and 
partial skeletons which throw a little more light upon the structure of these 
two different forms has resulted. 
The remains occur in a mass of greenish -grey sandstone which in the 
main is highly calcareous. The matrix, however, is comparatively easily 
freed from the bones, which are left clean, and the various sutures of the 
skulls are clearly displayed. Most of the material recently uncovered 
belongs to the genus Euparkeria, but a fairly complete new skeleton [un- 
doubtedly belongs to the interesting Acrodont form Mesosuchus. The dis- 
covery of a skull of Euparkeria lying in close proximity to the pelvis described 
by Broom as Brotvniella africana has led to the re- examination of the bones of 
Broumiella, and the conclusion has been reached that the pelvis and shoulder- 
girdle said to belong to that form are in reality specimens of Euparkeria 
capensis. 
Euparkeria capensis Broom. 
In addition to a number of isolated bones the following are the chief 
specimens of this species, all of which come from a locality known as the 
Krietfontein Spruit on the Aliwal North Commonage, and are of Upper 
Beaufort age. (The numbers in brackets refer to the South African 
Museum catalogue.) 
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