168 Berry: MESOZOIC FLORA OF ATLANTIC COASTAL PLAIN 
4 
of Bingen in Hempstead County, Arkansas. It comprises near 
shore (littoral and estuarine) deposits of gravels and white to 
brown sands and clays with considerable lignitic material and 
occasionally fairly well preserved fossil plants. It outcrops in a 
nearly east and west direction commencing at the Ouachita River 
and showing isolated patches along the edge of the Paleozoic rocks 
in Clark County. Except where it is cut out by river bottoms it 
forms an almost continuous sheet across Pike, Hempstead, Howard 
and Sevier Counties. Veatch,* who mapped this area in 1902 and 
1903, clearly recognized that while the Bingen sand of south- 
western Arkansas was the lithologic counterpart of the Woodbine 
sand of northeastern Texas it was the chronological equivalent of 
not only more or less of the Woodbine but of a considerable 
portion of the overlying Upper Cretaceous, including at least all 
of the Eagle Ford formation of the Texas region and possibly the 
Austin and the-earlier part of the Brownstown formation. Mr. 
Miser in his recent work in the Caddo Gap and De Queen quad- 
rangles proposes to distinguish a lower and an overlapping upper 
Bingen, both of which have furnished fossil plants, although the 
collections from both are not far from the contact of the two and 
therefore well above the base of the Bingen in the one case and 
well below the top in the other. 
The plants include twenty-seven determinable species for the 
most part identical with well-known Upper Cretaceous forms, and 
a fern pinnule that I have not ventured to name. The deter- 
mined forms comprise one fern, four conifers, two cycadophytes (?), 
and twenty dicotyledons. The most abundant forms are Sequoia 
concinna and a new species of Dewalquea. Among the dicotyledons 
there are three species each of Myrica and Ficus, two each of 
Salix, Liriodendron and Andromeda, and one each of Dewalquea, 
Menispermites, Colutea, Leguminosites, Manihotites, Cinnamomum, 
Sapindus and Cordia. A list of the species with their outside 
distribution is shown in the accompanying table. 
The largest collection (seventeen species) and the best pre- 
served material comes from the Big Railroad Cut locality which 
is near the base of Mr. Miser’s upper Bingen. Considering the 
Bingen flora as a whole it may be noted that it contains only one 
* Veatch, A. C. U.S. Dept. Int. Geol. Surv. Professional Paper 46: 24. 1906. 
