XXXIXj 



OTOZAMITES 



541 



from Graham Land as 0. linearis afford 

 a good illustration of the range of variation 

 in the pinnae : a characteristic feature is 

 the considerable length, exceeding 20 cm., 

 of the narrow linear fronds. The im- 

 pressions from the Kome (Cretaceous) 

 beds of Greenland described by Heer as 

 Glossozamites Schenkii 1 are probably 

 closely allied to 0. Bechei. The Rhaetic 

 species 0. Bucklandi Schenk 2 , 0. indosi- 

 nensis Zeill. 3 , and 0. Polakii Krass 4 , 

 illustrate older examples of closely allied 

 types. Zeiller records Otozamites pinnae 

 similar to those of 0. indosinensis from 

 Rhaetic beds in Persia 5 . 



Otozamites Beani (Lindley and Hutton). 



Founded on a specimen in the Scarbo- 

 rough Museum from the Middle Jurassic of 

 Yorkshire 6 which is indistinguishable from 

 Leckenby's type - specimen of Otopteris 

 mediana 1 in the Sedgwick Museum, Cam- 

 bridge. Long and narrow fronds exceeding 

 20 cm. in length, characterised by the 

 broadly oval, deltoid or sub-orbicular 

 pinnae, separate or partially imbricate 

 and attached by a broad auriculate base ; 

 apex bluntly rounded; veins numerous 

 and spreading from the base of the lamina. 

 The pinnae, which may be 3-5 cm. long 

 and nearly 2 cm. broad, are narrower and 

 longer in the distal part of the frond 

 (fig. 606). 



The Italian Jurassic species Otozamites 

 molianus Zig. 8 , recorded also from Born- 

 holm, is a very similar type. The generic 

 name Cyclozamia suggested by Pomel for 

 this form of frond has not been 



1 Heer (75) n. PI. xvi. figs. 58. 



3 Zeiller (03) B. PI. XLIII. fig. 1. 



5 Zeiller (05). 



7 Leckenby (64) A. PI. x. fig. 2. 



FIG. 605. Otozamites Bechei. 

 (British Museum, 40672; 

 f nat. size.) 



2 Schenk (67) A. Pis. xxxm., xxxiv. 

 4 Krasser (91) p. 12. 

 6 Lindley and Hutton (32) A. PI. XLIV. 

 8 Zigno (85) Pis. xxxv. xxxvi. 



