3 o8 



University of California. 



[Vol. 2. 



plants. The vertebrate fossils are neither so numerous nor so well 

 preserved as those in the John Day. Teeth and single bones com- 

 prise the greater part of most collections made here. The mamma- 

 lian remains show the fauna to have been of a much more special- 

 ized and higher type than that of the John Day. 



Fish remains are found associated with plants in the lower part 

 of the formation near the old Van Horn ranch. The single species 

 known from this locality has been referred by Cope* to the genus 

 Plioplarclius, a member of the perch family. 



Plant remains are very abundant in the shales at Van Horn 

 ranch and other localities near the bottom of the section. The col- 

 lection made here by Captain Bendire was studied by Professor 

 Lesquereux, who considered it upper Miocene. A collection made 

 by the University party in 1900 was submitted to Prof. F. H. 

 Knowlton, who has furnished the following list, with a statement 

 regarding the probable horizon to which the flora belongs: — 



"Van Horn's Ranch, about half way between Cafion City and 

 Dayville on East Fork. [Locality 878.] 



Glyptostrobus ungeri Heer. 



Taxodimn distichum miocenum Heer. 



Idnyites sp. 



Salix angnsta Al. Br. 



Quercus psendo-lyrata Lesq. 



Quercus pseudo-lyrata acntiloba Lesq., Proc. U. S. Nat. Mus., 



vol. xi, p. 17, pi. xi, fig. 1, 1888. 

 Qnercus pseudo-lyrata brevifolia Lesq., op. cit., p. 18, pi. x, 

 fig. 2, 1888. 



Qnercus pseudo-lyrata latifolia Lesq., op. cit., p. 18, pi. xii, 

 fig. 1, 1888. 



Quercus pseudo-lyrata obtusiloba Lesq., op. cit., p. 18, pi. x, 

 fig. 3, 1888. 

 Quercus n. sp. 

 Quercus n. sp. 

 Quercus? sp. 

 Planua ungeri Ett. 



*Am. Nat., 1889, V. 23, p. 625. 



