1896.] ^<j5 [Smithv 



Descriptions of the Coal Measure Marine Fossils. 



The lists of fossils given above establish beyond question the age of 

 the species described in this paper, and enable us, even without the aid 

 of stratigraphy, to assign them to their proper horizon, by a study of 

 the accompanying faunas. Of the goniatites only one, Oastrioceras 

 branneri 5 . P. S., is thought to be a new species, although all are new 

 to Arkansas. Oastrioceras marianum Verneul, and Pronorites eyclolobus 

 Phillips, have never before been found outside of Europe ; Oastrioceras 

 globulosum Meek and Worthen is found here for the first time outside of 

 Illinois ; Oastrioceras excelsum Meek is found for the first time outside 

 of Kansas; Paralegoceras iowense Meek and Worthen is found here for 

 the third time, being known elsewhere only in Iowa and in Texas, and 

 shows on the Arkansas specimen the internal lobes, features that have 

 never before been seen in this species and genus. 



Both stocks or families are represented in the collection, and genera 

 that probably were the ancestors of important genera and families in the 

 Permian and the Mesozoic, and thus as transitional forms, or links in 

 genetic series, they command especial interest. All species described in 

 this paper are deposited in the geological museum at Stanford Uni- 

 versitj', except the originals of Oastrioceras brnnneri J. P. S., and Pro- 

 norites cyclolobxis Phillips, var. arkansiensis J. P. S., which are depos- 

 ited in the U. S. National Museum. 



Subkingdom Coelenterata. 

 Class Anthozoa. 

 Genus Fistulipora, McCoy. Fistidipora nodnlifera Meek, U. 8. 

 Oeol. Survey Nebraska, p. 143, PI. v. Fig. 5. 



This species, whicli is common in the Upper Coal Measures of 

 Nebraska, Iowa, Illinois, etc., Avas found in corresponding strata on 

 Poteau mountain, Indian Territory. 



Genus Lophophyllum, Milne-Edwards and Haime. Lo2)hophyllum 

 proliferiim McChesney sp., McChesney, Descript. Neic Pal. Foss., 

 1860, p. 75 ; F. B. Meek, U. S. Oeol. Survey JSTebraska, p. 144. 

 Several specimens agreeing with the typical L. proliferum were found 

 in the Upper Coal Measures of Poteau mountain, Indian Territory. 

 Specimens closely resembling this species were also found in tlie Boone 

 Chert, Lower Carboniferous, of Boone county, 17 N., 19 W., section 2, near 

 Valley Springs. The latter specimens are more like LophophyUum pro- 

 liferum var. saiir ideas White, C. A. White, U. S. Oeog. Su7-v. W. of 

 100th Meridian, iv, p. 101, PL vi. Fig. 4, from Carboniferous strata, New 

 Mexico and Colorado. 



Genus Zaphrentis, Rafinesque. Zaphrentis, sp. indet. 



In Crawford count j', 10 N., 30 W., section 10, southeast quarter of north- 

 w^est quarter, in strata of the Lower Coal Measures, and in the same 



