Maryland Geological Survey 131 



(probably Barremian) near Pirot in southeastern Servia. Other sup- 

 posed lower Cretaceous plants from southeastern Europe, such as those 

 from Solymos and Bucsava in Hungary are now considered Jurassic 

 (Tithonian). 



Russia 



Although Murchison' states that the Wealden is absent in Russia, 

 Auerbach,^ as long ago as 1844, figured and described fossil plants from 

 the sandstones of Klin (Klin'schen sandstein) in the province of Moscow. 

 Eichwald* at one time regarded these sandstones as of Quader age, al- 

 though in 1865 he refers them to the Neocomian." Dunker, who ex- 

 amined Trautschold's plants considered the age as Wealden, and this is 

 the opinion adopted by the latter who has given the only complete account 

 of this flora/ The species are as follows : 



Araucarites hamatus Trauts. 



Alethopteris metrica Trauts. ^ Matonidium ? 



Asplenites desertorum Trauts. = GladophleMs 



Asplenites Klinensif; Tra,uts. = Weichselia reticulata (S. & W.) Ward 



Auerbachia ecMnata Trauts. 



Calamites sp., Trauts. = Equisetum * 



Cladophlebis Browniana {Alethopteris Reichiana Trauts.) 



CladophleMs AWertsii (Pecopteris WhitMensis Trauts.) 



Cycadites acinaciformis Trauts. 



Equisetites sp., Trauts. 



Glossopteris solitaria Trauts. (^ Sagenopteris) 



Microdictyon Dunkeri Schenk (Pecopteris decipiens Trauts.) 



Odontopteris duMa Trauts. := CladophleMs 



Pecopteris Althausii Trauts. = Matonidium Althausii (Dunker) Ward 



Pecopteris explanata Trauts. = Mato7iidium Althausii (Dunker) Ward 



Pecopteris nigrescens Trauts. ^ Weic/iseZta reticulata (S. & W.) Ward 



Pecopteris pachycarpa Trauts. = Matonidium Althausii (Dunker) 



Ward 

 Polypodites (Lonchopteris) Mantelli Trauts. = Weichselia reticulata 



(S. & W.) Ward 

 Phyllites regularis Trauts. 



^Murchison, Geol. Russia, vol. i, 1845, p. 260. 



^Auerbach, Bull. Soc. imp. nat. Moscou, vol. xvii, 1844, 1, p. 145, pi. v. 

 ^ Eichwald, Ibid., vol. xxxiv, 1861, 4, p. 432. 

 ^Eicliwald, Lethsea Rossica, vol. ii, pt. i (1865), 1868, pp. 1-71. 

 ° Trautschold, Nouv. Mem. soc. nat. Moscou, vol. xiii, 1871, pp. 189-236, pi. 

 xviii-xxii. 



