80 YORKSHIRE NATURALISTS UNION. 
MIDDLE COAL MEASURES. 
Hor.— Barnsley Thick Coal, Locs.—Denaby Main Col- 
liery, near Rotherham (Hemingway) ; East Gawber 
Colliery, near Barnsley (Hemingway). 
Nore.—Mr. Hemingway informs me that this is the 
most common Stigmaria in the Barnsley Thick Coal and 
Silkstone Coal Shales. 
CORDAITEZE. 
CORDAITES UNGER. 
Cordaites principalis Germar sp. 
First Report, p. 58. 
Additional locality. 
MIDDLE Coat MEASURES. 
Hor.— Barnsley Thick Coal. Loc.—South Kirby Colliery, 
near Pontefract (Hemingway). 
Cordaites borassifolius Sternb. sp. 
Cordaites borassifolius Unger, Genera et species, p. 277. 
Cordaites borassifolius Heer, Flora foss. Helv., p. 54, pl. 
xvii, figs. 14—17. 
Cordaites borassifolius Zeiller, Flore foss. d. bassin houil. d. 
Valen, p. 625, pl. xcii., figs. 1—6. 
Flabellaria borassifolia Sternb., Ess. Flore monde prim., 1., 
fasc. ii., pp. 31 and 36., pl. xviii. ; fasc. 1v. D, 8:5 
MIDDLE Coat MEASURES. 
Hor.—Shale over Ackworth Rock, — Loc.—Cadeby Col- 
liery, Conisborough (Hemingway). 
ARTISTA STERNBERG. 
Artisia transversa Artis sp. 
First Report, p. 59. 
Additional localities. 
MIDDLE COAT MEASURES. 
Hor.— Shale above Ackworth Rock. Loc.—Cadeby Col- 
liery, Conisborough (Hemingway). 
Geol: Trans., Y. N.U., 1889— 1890 (pub. 1892). 
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