Adams.] The Upper Cretaceous. 17 



description of the route west of the Missouri in Sternberg's 

 report, he thinks the beds may be Cretaceous. He next de- 

 scribes the Cretaceous formation, which was first observed 

 seventy-four miles from Fort Riley, which is made up of chalky 

 limestones, marls, slates, and shales. This formation extends 

 beyond the borders of the state. He mentions some fossils. 

 A list of fossils by Shumard accompanies the report. 



1857 — Hay den* This article on the country bordering the 

 Missouri river has a map accompanying it, showing the geol- 

 ogy of northeastern Kansas, colored from information furnished 

 by Major Hawn. In a paper immediately following, he gives 

 a section of the rocks of northeastern Kansas above the coal 

 measures, by Major Hawn. These beds were not seen at any 

 one place, but their thickness and order of succession were deter- 

 mined in the region east of the sixth principal meridian by Major 

 Hawn, while carrying on the lineal survey. The beds are cor- 

 related by Hayden with the New Jersey section, the Alabama 

 section, and the Triassic and Jurassic of Marcou, from his sec- 

 tion of Pyramid Mountain, New Mexico. The article concludes 

 for Kansas that there is at the base of the Cretaceous series a 

 series of beds concerning which evidence is lacking that they 

 are not older than any portion of the Cretaceous. The section 

 is correlated with Cretaceous, No. 1, No. 2(?), and the lower 

 part of No. 3. 



1859 — Meek and Hayden? In this article it was stated that 

 No. 1 was carried too low in a previous paper ( Proc. Acad. Nat. 

 Sci. Phil., 1857). A paper by Hawn (Trans. Acad. Sci. St. 

 Louis, i, 171) is cited in which the formation in Kansas is placed 

 on a parallel with No. 1, but the whole is referred to the Trias. 

 These beds were examined with care, and dicotyledonous leaves 

 were found, proving their identity with No. 1 of the Nebraska 

 section. Doctor Newberry is referred to as authority in the 

 paleobotany. Between No. 1 and the beds containing Permian 

 fossils there is a series of beds which the writer states may be 

 Jurassic or Triassic, or both, but more probably the former, 



8. Proceedings Acad. Xat. Sci. Phil. 1857. 



9. American Jour. Sci., 1859. 



