NO. 3 UPPER CAMBRIAN TRILOBITE FAUNAS — RASETTI 27 



in the Rogersville area as previously discussed (author's localities 

 cnd/1, cnd/2; U.S.N.M. locality 27d). The faunule from these beds, 

 excluding a few unrecognizable forms named by Resser, includes : 



*Ankoura triangularis 



Bonneterrina appalachia 



Cedarina, sp. undet. 

 *Coosella resseri 



Genevievella, sp. undet. 

 *Holcacephalus granulatus 

 *Ithycephalus typicalis 

 *Kormagnostus simplex 

 *Loxoparia obliqua 

 *Menomonia prominens 

 *Modocia bidentata 



Modocia crassimarginata 

 *Modocia dubia 



Nonvoodella saffordi 

 *Norzvoodella rotundicollis 

 *N orwoodia rogcrsvillensis 



Tricrepicephalus, sp. undet. 



In the equivalent stratigraphic position in other parts of the Rogers- 

 ville outcrop belt, the basal beds of the Nolichucky consist of the usual 

 gray-green shale with rare lenses of crystalline limestone (author's 

 localities cne/1, cne/2; U.S.N.M. localities 103, 124). The species 

 collected from these beds include : 



Genevievella, sp. undet. 

 Kormagnostus simplex 

 Menomonia prominens 

 *Norwoodella saffordi 



Outside of the immediate vicinity of Rogersville, fossils of the 

 Cedaria zone occur in Tennessee chiefly in the northwestern portion 

 of the Cambrian outcrop area, in the belts N. of Clinch Mountain 

 from Forked Deer Creek (Thorn Hill section) to Heiskell W. of 

 Knoxville. Trilobites occur at scattered localities, usually either in 

 shale or in a coarse, glauconitic calcarenite where most of the tests 

 have been ground to unrecognizable fragments. Very little information 

 about the faunal succession can be determined from these occurrences. 

 Species collected from several localities are listed below. 



Seemingly the oldest Upper Cambrian fossils occur in U.S.G.S. 

 collection 2406 (= author's collection cnb/10), where the following 

 species were identified : 



Ankoura triangularis 

 Kormagnostus simplex 

 Olenoides, sp. undet. 



