5taoH 



THE 



PALEONT OLOGIST. 



No. 1.] Jr CINCINNATI,— U. P. JAMES. [JULY 2, 1878. 



Plan of this Publication. — Numbers will be issued in the form of Bul- 

 letins, at such times as sufficient material is ready. 



Object.— lo furnish a medium for the early publication of original papers 

 on Geology and Paleontology, in order to avoid the frequent delays when de- 

 pending upon the regular serials — Journals and Proceedings of Societies. 



DESCRIPTIONS OF NEWLY DISCOVERED SPECIES OF FOSSILS 

 FROM THE LOWER SILURIAN FORMATION.— CIN- 

 CINNATI GROUP, BY U. P. JAMES. 



GENUS ASTYLOSPONGIA, (Roemer.) 



Astylospongia tumidus. (James.) Fossil subglobose, more or less depressed, 

 with a shallow cavity on one side. Surface rough and generally covered with pit-like 

 markings; sometimes quite distinctly lobed ; examples examined not very satisfactory. 



Locality — Cincinnati. 



GENUS STROMATOPORA, (De Blainville.) 



Stromatopora papillata. (James.) Fossil forming a thin crust upon corals, shells 

 and other foreign substances. Surface covered with very small, closely set, prominent 

 papilla, or tubercles, giving to the fossil a granulated appearance to the naked eye. 

 Papillae with circular apertures, in some cases, at the tops, others see;// to be solid or 

 closed. The ^camples on Strophomena and Orthis, have, in most cases, the papillse ar- 

 ranged in radiating rows upon the striae of the shells, but in other cases, and in all speci- 

 mens on corals, there is no such arrangement and no regularity. From 6 to 8 papillte in 

 the space of one line, interspaces non-poriferous. 



Locality — Cincinnati and vicinity, extending to the upper beds of the Cincinnati Group. 



GENUS CHAETETES, (Fischer) 



Chaetetes Crustulatus. (James.) Corallum consisting of a thin crust, from ^ to 

 ^ of a line or more in thickness. Calices subpolygonal, varying greatly in form and size, 

 at)out 7 or 8 in the space of one line, with groups of much larger ones about two lines 

 apart, from center to center of the groups ; sometimes one central calix of a group much 

 larger than the others ; other groups have 3 or 4 large calices at or near the center, de- 

 creasing in size outwardly ; both number and size of the larger calices in the different 

 groups quite inconstant ; no surface prominences of any kind. Walls of corallites very thin ; 

 no interstitial pores. 



All examples observed are spread over the surface of different species of Orthoceras. 



Locality — Cincinnati and vicinity, extending to the upper beds. 



Chaetetes. Sp. (?) in the upper beds of the Ci/icmnati G/vitp, I find a form of coral 

 — abundant — much like C. g/ac/'l/'s \\i gt'//e/al feat// res, the chief difference being in the lar- 

 ger size of the branches, some of them nearly yi an inch in diameter; the iy^xcaX gracil/'s 

 ave/aging not over one li/ie. Should this prove distinct on further examination, I propose 

 for it the name Meeki, (Chaetetes Meeki) in honor of the late F. B. Meek. 



Typical C. gracilis found in lower beds at Cincinnati. 



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