THE 



GEOLOGICAL MAGAZINE. 



NEW SERIES. DECADE V. VOL. I. 



No. IV. — APRIL, 1904. 



o:rilg-xi<tj^il. J^I^TICLES. 



I. — A EeTROSPECT of PALiEONTOLOGtY IN THE LAST FORTY YeABS. 



{Concluded from the March Nuinher,f. 106.) 



Reptilia et Aves. — Our two greatest Anatomists of tbe past 

 century, Owen and Huxley, both contributed to this section of our 

 palseozoological record. Owen (in 1865) described some remains of 

 a small air-breathing vertebrate, AnthraJcerpeton crassosteum, from the 

 Ooal-shales of Glamorganshire, corresponding with those described 

 by Dawson from the Coal-measures of Nova Scotia ; and in 1870 he 

 noticed some remains of Plesiosauriis Hoodii (Owen) from New 

 Zealand, possibly of Triassic age. 



Huxley made us acquainted with an armed Dinosaur from the 

 Chalk-marl of Folkestone, allied to Scelidosaiirus (Liassic), Hylao- 

 saurus and Polacanthis (Wealden), the teeth and dermal spines of 

 which he described and figured (1867), and in the following year 

 he figured and determined two new genera of Triassic reptilia, 

 Saurosternon Bainii and Fristerodon IfcKayi, from the Dicynodont 

 beds of South Africa. 



E. Etheridge recorded (in 1866) the discovery by Dr. E. P. 

 Wright and Mr. Brownrig of several new genera of Labyrinthodonts 

 in the Coal-shales of Jarrow Colliery, Kilkenny, Ireland, com- 

 municated by Huxley to the Royal Irish Academy, an account of 

 which appeared later on in the Geological Magazine in the same 

 year by Dr. E. P. Wright (p. 165), the genera given being 

 Urocordyliis, Opliiderpeton, Ichihyerpetou, Keraterpeton, Lepterpeton, 

 and Anthracosaurus. Besides these genera there were indications 

 of the existence of several others (not described), making at that 

 time a total of thirteen genera from the Carboniferous formation in 

 general. 



In 1872 the distinguished Canadian geologist, Professor Sir Wm. 

 Dawson, gave an account of and figured Saurqpiis unguifer, being the V y 

 footprints of an unhiown labyrinthodont reptile from the Carbon- ' 

 iferous Sandstone of Nova Scotia; and in 1891 he announced in two 



decade v. — VOL. I. — NO. IT, 10 



