G4(5 



DR. J. W. DAWSON OX i:i?KCT TRHIvS COXTAINING ANIMAIi 



10. DeuJn'rpdon Acadtunma 



11. D. Oirciii 



12. Siarodus, s\k {'.) 



r.iibi/riiitliodivdiu. 



9 specimens. Trees No. 1, 2, f), 8, 12, IH, TO, 24. 

 . 4 ., „ .S IC, lii. 



fiiicrfdj Sedis. 

 1 specimen. Tree No. 1(». 

 Total individuals, oo. 



The neo-ative result that, umU'r the c\ce[)tionally favmu-able conditions presented 

 by these erect trees, no remains <>[' any animals of iii^her rank than the MIcfih^idKi-Kt 

 and Lahi/rijilliixloiitin have lucii found deserves notice here. It seems to slu)\v that 

 no small ([uadru|HHis of liinher orade inhal)ited the forests of Nova Scotia at the 

 period in question. This is perhaps contirmed hy the remarkal)ly Lacertillan cha- 

 racters assumed hy the Mirr"--<'i"ria of the period, which seem to have occupied the 

 place now taken by the smaller tine re[)tiles. That there were lar^vr Labyrintho- 

 donts than those touud in the erect trees we know from the liupjielc.-i iihintccpa of 

 the Pictou Coal,-' and from the i'emark;d)le footi)rints of Saiiroi>'is Si/dncitsis'^: and 

 Sauro/iHS muj'i'ijvr.X It is to he observed also that as some of the ami)hibian animals 

 found in the erect trees are represented only by sinu'le specimens, there may have 

 been still rarer species, whii-li niay be discovered should other trees be exposed. Nor 

 must we forget that the fauna of those swam[>s and low-lyiuLi' plains of the carbonile- 

 rous pei'iod, to which our knowledge is at present limited, may not fully represent 

 that of the ujilands of the pLiiod. 



"With reference to the probaliiliiy of the discovoiy of adilitional remains in the beds 

 to which this paper relates, I iniiy state that new trees will no doubt be exposed from 

 time to time liy the u'radual wasting' of the clilV. Otherwise additional s[ieeiuiens can 

 be procured only by regular mining operations carried on in the (J-inch coal and its 

 roof. These wouM of eouise In- custiv, and the small amount of coal atVordt'd liy the 

 G-inch seam woidd coiitribute vei-v little towards delVaying the ex[K'nse. 





* .Ti)uniiil ot Gt'oldgiial Socirtv, vols. X. iiiui xi.; ' Air-bi'Ciittn I's nf lla ('.i:il Pirioil;' ' Ac;iil. (Ji'uloiry,' 

 p. :!.")'.'. 



t ' Acmliiui (i(.'ii1iit;y,' ]). i;."^. 

 J ' Gcologii'iil ,M;ii^-:i/iiH',' Vdl, ix. 



