302 
SILURIA. 
[Chap. XII. 
tile from one of the Scotch coal-fields, which Owen has described under the 
name of Parabatrachus Colei. Owen has also described the Anthrakerpeton 
crassosteum from the Coal-shale of Glamorganshire ; and Huxley has described 
several reptiles from the Coal of Scotland and Ireland (see p. 303). The Laby- 
rinthodont Baphetes planiceps (Owen) was found in a coal-seam at Pictou, 
Nova Scotia. Sir C. Lyell has published the very interesting account of a 
discovery made by Principal Dawson and himself, in the coal-field of South 
Fossils (83). Uppermost Limestone op the Coal-measures. (From Sil. Syst. p. 84.) 
Microconchus (or Spirorbis) carbonarius, Sil. Syst. The real size is given in the 
minutest of these figures, whilst the upper figures are somewhat magnified, and the 
lower very greatly so. * *. The mark of attachment to some small cylindrical body. 
Joggins, in Nova Scotia f, of a Reptile called Dendrerpeton Acadianum, which 
Owen and Wyman consider to belong to the Perennibranchiate Batrachians. 
With this Keptile were associated remains of others, many Land Plants, and 
several shells of an air-breathing Mollusk — the first true Land Shell found in 
strata of such high antiquity J. These discoveries afford us proofs of associations 
of organic remains which we might, indeed, have anticipated. 
Principal Dawson has since discovered, in the Coal-formation of Nova Scotia, 
five new species of Reptiles, namely : — Hylonomus Lyelli, Dawson ; H. acieden- 
tatus, Dawson ; H. Wymani, Dawson ; Dendrerpeton Oweni, Dawson ; and 
Hylerpeton Dawsoni, Owen §. Vertebrae referred to a much larger Reptile, 
Eosaurus Acadianus, have also been found and described by Mr. 0. C. Marsh ; 
and Mr. Brown, of Sydney, has discovered a slab with footprints referable to still 
another species, Sauropus Sydnensis, Dawson. The genera Hylonomus and Eo- 
saurus are supposed to represent higher types of reptilian life than that of the 
Labyrinthodont Batrachians. Another new air-breather, a Centipede or Myri- 
apod, allied to lulus, also discovered by Dr. Dawson in the Coal-formation of 
Nova Scotia, is Xylobius Sigillarise ; and similar fossils have lately been found 
in Britain ||. 
In our own islands, also, footmarks of Sauroid animals have been detected in the 
coal-field south of Edinburgh^; and the impressions of the feet of another reptilian 
t Quart. Journ. Geol. Soc. vol. ix. p. 55. measures of Kilmaurs, near Glasgow ; and in the 
I Ibid. vol. ix. p. 58. same month Mr. E. W. Binney recorded the dis- 
§ Quart. Journ. Geol. Soc. vol. xvi. p. 268, vol. covery of another specimen in the Manchester 
xviii. p. 5, and vol. xix. p. 52; Canadian Naturalist coal-field (Proc. Manch. Lit. & Nat. Hist. Soc). 
and Geologist, vol. viii. ; Dawson, 'Air-breathers A reptilian jaw-bone, like that of Dendrerpeton, 
of the Coal-period.' has been recognized in Mr. Atthey's collection of 
|| In January 1867, Mr. Henry Woodward com- fossils from the Newcastle coal-field, by Prof. E. 
municated to the Glasgow Geological Society an Jones : Geol. Mag. vol. i. p. 130. 
account of the discovery of Xylobius (probably % See H. Miller's 'Testimony of the Bocks,' 
X. Sigillarise), from the clay-ironstone of the coal- p. 78. 
