1897] 



RESTORATION OF EXTINCT REPTILES 



191 



grams, in black lines on a white ground, executed by Miss G. M. 

 Woodward with the artistic skill and excellence of technique which 

 invariably characterise her work. 



The species chosen to represent the Order Ornithosauria is 

 Dimorphodon macronyx, from the Lower Lias of Lyme Eegis (Fig 1). 

 Owen's well-known restoration of this species (" Liassic Eeptilia," 

 Mm. Pal Soc, 1870, pi. 20., and "Hist. Brit. Foss. Rept.," 1 849-84, 

 vol. iv., pi. 17), naturally formed the basis of the diagram, but 

 the shapes and proportions of the bones were taken from the 

 actual specimens, of which the Geological Department of the 

 museum can boast a good many. 1 The correctness of Owen's 

 restoration of the pelvis was severely criticised by Seeley in 1891 



Fig. 1. Dimorphodon macronyx, from the Lower Lias of Lyme Regis, (x'). 



(Ann. and Mag. Nat, Hist., ser. G, vol. vii., pp. 235-255), and 

 recourse was had to figures 11 and 13 of this paper when drawing 

 the pelvic region of the skeleton. The pteroid bone, or backwardly 

 directed metacarpal of the rudimentary thumb, which is incorrectly 

 shown on the ulnar side of the limb in Owen's figure, was in- 

 troduced from the specimen (E. 1034) in the Geological Gallery, 

 and the details of the caudal vertebrae from specimen (41346), 

 figured by Owen in the " Liassic Eeptilia " (pi. 19, fig. 4). Since the 

 back part of the skull is crushed in the Natural History Museum 

 specimens of Dimorphodon, the outlines of the quadrate bone and 

 the supra-temporal and lateral temporal fossae were added from 



1 The more complete skeletons were described and figured by Bucklaud, Owen, 

 and others, and references to the descriptions and figures are to be found in the Brit. 

 Mus. Cat, Foss. Beptilia, part i., pp. 37-39. 



