The Ralceobotany of Robin Hood Quarry, Leeds. 203 
presence of forking stigmarian rootlets (Fig. 1, d and e). 
Burnet and Everett record N europteris osmundae from this bed, 
together with erect trunks of Lepidodendron. Dr. Crookall 
also remarks on the abundance of Lepidodendron in the roof 
of the Upper Haigh Moor' Seam. 1 
This shale is separated by a thin coal seam from two feet 
of black brittle shale containing abundant remains of 
Lycopodiales. In the overlying shale bed the only remains 
are a few calamites, but above this shale is a thin bed of hard 
grey sandstone, the base of which is crowded with well- 
preserved calamites. This passes up into grey shale and 
above this is a 2 ft. seam of coal which is followed by 12 ft. 
of grey shale divided into two beds by a thin coal seam. 
These upper shale beds contain many nodules and are very 
fossiliferous. Mariopteris muricata is the dominant fossil, 
although Lepidodendron ophiurus is very plentiful. Erect 
tree trunks have also been observed by Burnet and Everett. 
Pal^obotanical Details. 
N europteris heterophylla Brongt. (Fig. ia) and N europteris 
gigantea Sternb. (Fig. ib) are the most abundant of the 
Neuropterideae. The pinnules of the former have a length of 
about 8 mms. and a width of 6 mms. They are sessile and 
rounded at the apex and the terminal pinnule, which is often 
seen, is larger than the others. The midrib is strong at the 
base, but it divides into many clearly marked, closely packed 
veinlets which, although fewer, are stronger than in N europteris 
gigantea. The latter is found only as isolated pinnules which 
have a rounded apex and fairly straight lateral margins. 
N europteris tenui folia (Schloth) is fairly common, and it has 
pinnules 15 mms. long by 5 mms. wide, and the margins 
converge slightly towards the rounded apex. The pinnules 
are contracted at the base and the midrib can be seen almost 
the whole of the length. The lateral veinlets are fine and 
evenly spaced. N europteris microphylla Brongt., which is 
rarely found in the lower beds, has oval pinnules with a broad 
base and few veinlets. Mariopteris muricata (Schloth.) is 
the only member of the Sphenopterideae noticed, although 
Burnet and Everett have obtained Sphenopteris trifoliolata 
(Artis. ) . 
The Lycopodiales and Equisetales do not call for any 
further comment except to note that Lepidodendron ophiurus 
Brongt. and Lepidostrobus sp. are very plentiful in the nodules 
of the higher beds, whilst Lepidophyllum sp. (Fig. ic) is 
common in the shales above the Upper Haigh Moor Coal. 
1 Crookall, R., ‘ The Relative Value of Fossil Plants in the Strati- 
graphy of the Coal Measures,’ Mem. and Proc. Manchester Lit. and Phil. 
Soc., Vol. 76, p. 93, 1932. 
1933 Sept. 1 
