786 SYSTEMATIC PALEONTOLOGY 



Description. This characteristic species, described originally from 

 the Cenomanian of Bohemia, may be readily recognized by the form of 

 the foliage the flat, lanceolate, decurrent leaves above, and the short and 

 appressed leaves below. Newberry says of this species that it is one of the 

 most common conifers of the Amboy clays, but mentions no localities. 

 The writer has only found it in the Upper Raritan at South Amboy, New 

 Jersey, where it is very common, and at the Hylton pits, which are also 

 near the top of the Earitan, and it has been collected by Hollick from a 

 probably equivalent horizon at Kreischerville, Staten Island. 



In the overlying Magothy formation it is a common species with a 

 recorded range from Marthas Vineyard to Maryland, and in the allied 

 Black Creek formation of North Carolina. It occurs in the Tuscaloosa 

 formation of Alabama and in the West it occurs in the Judith Eiver beds 

 of Montana. The form described by Newberry from the Cretaceous of 

 Nanaimo, Vancouver Island, as Sequoia cuneata is very similar to the 

 present species. 



In 1888 (op. cit.) Velenovsky described additional twigs of this species 

 and cones from the Cenomanian of Hloubetin, Bohemia, although he does 

 not state that they were attached. The cones were of small size 2.3 cm. by 

 1.5 cm., elliptical in outline, and were made up of a relatively small num- 

 ber of slender, rhomboidal, umbilicate scales of Sequoia type. 



Occurrence. MAGOTHY FOKMATION. Deep Cut, Delaware; Grove 

 Point, Cecil County ; Litte Eound Bay, Anne Arundel County. 



Collections. Maryland Geological Survey, U. S. National Museum. 



SEQUOIA AMBIGUA Heer 



Sequoia ambigua Heer, 1874, Fl. Foss. Arct., Bd. iii, Ab. ii, pp. 78, 91, pi. 



xxi, figs. 1-11; pi. xxv, fig. 5. 



Sequoia amMgua Heer, 1882, Ibidem, Bd. vi, Ab. ii, pp. 17, 52, pi. i, fig. 3. 

 Sequoia ambigua Bozzi, 1888, Atti Soc. Ital. Sci. Nat., vol. xxxi, p. 401, pi. 



vi, fig. 2. 

 Sequoia ambigua Fontaine, 1890, Mon. U. S. Geol. Survey, vol. xv, 1889, 



p. 245, pi. cxviii, fig. 2; pi. cxx, figs. 1-6; pi. cxxvii, fig. 5; pi. cxxxii, 



fig. 3. 

 Sequoia ambigua White, 1890, Am. Jour. Sci., vol. xxxix, p. 97, pi. ii, figs. 



2, 3. 

 Sphenolepidium recurvifolium Fontaine, 1890, Mon. U. S. Geol. Survey, vol. 



xv, 1889, p. 258, pi. cxxvii, fig. 2; pi. cxxx, figs. 2, 7. 



