399 



Mert, 



Mertensides buUatus, continued.) 



^p,/c?. PIJ6 

 Bntcune- u.s.BuILS ^^ 



Mertensides distans, Fontaine. Older Triassic Flora of 

 Virginia, U. S. G. S. Vol. 6, p. 39, pi. 15, fig. 1, a compound 

 normal leaf; \a, magniHed, fruitage on pinnules. Sterile frond 

 not seen. Pinnules thick and corriaceous. Leaf so dense that 

 no nerves except the middle one can be made out. A small 

 plant very like Oleichenites microphyllus, Schenk, European 

 RlmtiG. Compare also PeGOpteris gracilis, Heer, European 

 Trias, Very rare, at Clover Hill Colliery, in flaggy soft sand- 

 stone with small coals above main Kichmond he&.— Trias, 



Mesodmodus ? Ush scales frequent in the Meadville 



uj)per limestone of Crawford Co. I. C. White, Q4, p. 83.— Note. 

 St. John and Worthen's genus, 1875, Geol. Sur. 111., Vol. 6, 

 three species : explanatus, exculptus^ and ornatus, — X 



Mesonachis vermontana. (Walcott, 1885, Am. J. S., pi. 

 29, figs. 1, 2.— 0lenus vermontana. Hall, 12th An. Rt. 1859, fig. 

 2 ; Pal. N. Y., Vol. 3, 527 ; Barrandia vermontana, Hall, 13th 

 An. Rt. 1860 ; Geol. Vt. 1861, Vol. 2, pi. 13, fig. 2; Paradoxides 

 vermonti, Emmons, 1860, Manual of Geol., p. 280, Note A; 

 Paradoxides vermontana, Barrande,1861, Bull. Soc. Geo. France, 



