96 BULLETIN NO. 30, UNITED STATES NATIONAL MUSEUM. 



CONTENTS. 



Page. 



List of wood-cuts xiii 



List of errata xv 



Letter of Dr. F. V. Hayden xvii 



Introductory remarks xix 



Cretaceous formation xxi 



Section of Cretaceous formation on the Missouri xxiii 



General section of the Cretaceous rocks of Nebraska xxiv 



Subdivisions of the Upper Missouri undo)ibted Cretaceous series, and their geographi- 

 cal extension west of the Mississippi, individually considered xxvi 



Dakotii group xxvi 



Fort Benton group xxviii 



Niobrara group xxx 



Fort Pierre group xxxiii 



Fox Hills group xxxv 



New Mexican Cretaceous section xxxvii 



Kelations of the Upper Missouri Cretaceous beds to those east of the Mississippi xxxviii 



Section of Cretaceous rocks of Mississippi xxxviii 



Alabama section xxxix 



New Jersey section xli 



Parallelism of the subdivisions of the Upper Missouri Cretaceous series with those of 



the same in Europe xliii 



Fresh and brackish water lignite deposits of the Upper Missouri xlviii 



Judith River group xlvii 



Section of the Judith Kiver group xlviii 



Fort Union group Iv 



Section of the Fort Union lix 



Tertiary jocks of the AVind Kiver and White River groups Ixi 



Wind River group Ixi 



White River group Ixi 



Section of the White River group Ixii 



Invertebrate paheontology 1 



Cretaceous species 1 



Species of the fresh and brackish wat«r lignite beds 509 



Fossils of the Wind River Tertiary 593 



Fossils of the White River Tertiary 598 



Appendix 607 



CRETACK0U8. 



Madiata. 

 Polypi. 

 Actinaria. 

 Ftingiidce. 



Micrabacia, Edwards & Haitue, 1849 1 



M. americana, M. <fe H. , 1 860, pi. xxviii, flgs. 1 a-d 1-2 



Alcyoiiaria. 

 Gorgoniidm. 



Websteria, Edwards &. Haime, 1854 2-3 



W. cretacea, Meek, 1864, pi. xxviii, figs. 3 a-e 3-4 



* Microstizia, n. g.. Meek, 1876 4 



M. miUepvnctata, n. s.. Meek, 1876, pi. xxviii, flgs. 2 Or-c 4 



Echinodennata. 

 Echinoidea. 

 Spatangidw. 



Uemiasler, Uesor., 1847 5 



H. humphrcysanus, M. & n., 1857, pi. x, flgs. 1 a-g 5-6 



Mollusca. 

 Brachiopoda. 

 Lyopomata. 

 Lingulidce. 



iini/Mia, Bruguii«-e, 1792 7-9 



L.nitida, M. &. H., 1861, pi. xxviii, flga. 18 o, & »-10 



* jAncpos, small ; <7ri(i<r, puncture. 



