PLATE X. 



Goniolithon Reinboldi A. Web. et Fosl. Fig. i — 6. 



Fig. I. A young specimen of the plant. Stat. 282. 



Fig. 2. An older specimen. Stat. 193. 



Fig. 3 — 5. Old and typically developed specimens. Stat. resp. 282, 71, 91. 



Fig. 6. A "specimen approaching Lithophyllum Okamurai in habit. Stat. 91. 



Goniolithon frutescens Fosl. f. typica. Fig. 7 — 9. 

 Fig. 7 — 9. Rather delicate specimens of the form; fig. 9 seen from the side. Stat. 261. 



Goniolithon frutescens Fosl. f. congesta. Fig. 10 — 11. 

 Fig. 10 — n. Specimens of this form not quite typically developed. Stat. 220. 



Goniolithon frutescens Fosl. f. subtilis. Fig. 12 — 13. 

 Fig. 12 — 13. Typical specimens of the form. Stat. 225. 



