ARBEB : FOSSIL FLORA OF SOUTH YORKSHIRE COALFIELD. 141 
Dr. Moysey has also collected the following specimens from 
the Middle Coal Measures, below the horizon of the Top Hard 
Coal. 
From Newthorpe Clay Pit, No. 1 (Nottinghamshire), between 
the Waterloo and the Ell and Deep soft coals : — 
Calamites approximatus, Brongn. 
C. undulatus (Stemb.). 
Calamites, sp. 
Sphenopteris {Corynepteris) coralloides, Gutbier. 
Sphenopteris sp. 
Neuropteris heterophylla, Brongn. 
Mariopteris muricata (Schloth.). 
Cordaites principalis (Germ,). 
Doricordaites palmoeformis (Gcepp.). 
From the Pyebridge Railway cutting, Nottinghamshire, a 
little above the Ell coal : — 
Calamites cf. C. cisti, Brongn. 
Alethopteris lonchitica (Schloth.). 
Neuropteris, sp. 
Lepidodendron obovatum, Stemb. 
From the Denby Clay Pit, Derby, between the Silkstone and 
the Mickley Coals : — 
Mariopteris muricata (Schloth.). 
Lepidodendron aculeatum (Stemb.). 
All these plants, except Sphenopteris (Corynepteris) coralloides, 
Gutbier, have been previously recorded from the Middle Coal 
Measures of the central portion of the Yorkshire Coalfield. 
THE LOWER COAL MEASURE FLORA. 
The series of sediments beginning with the Belperlawn Coal, 
above the First Grit, to the Kilbum Coal, about 800 feet in thick- 
ness, and including also the Alton and some other thin seams, 
are regarded by Walcot Gibson^ and Vemon^ as Lower Coal 
Measures. 
The Kilbum Coal thins to the northward, and in the central 
district of the field, in Yorkshire, it is absent, though it reappears 
again in the Huddersfield district, as the Better Bed Coal. 
I Walcot Gibson (08). 
2 Vernon (09). 
