DEVONIAN AT WHITE PINE. 



lilH 



writer from ^rount Argyle and Treasure Peak, and represents tliirty-three 

 genera anil torty-nine speeies, as follows: 



Cyathopliylluni sp. ? 

 Fenestella (2 sp.?) 

 Tliaiiiiiisciis s|). ? 

 Liiigula alba -pineiisis. 

 Discina lodensis. 

 Chonetcs sp. ? 

 Stroi)h<)doiita canace. 

 Stroplioiloiita iuequiradiata. 

 Stropliodonta spj 

 Oitliis iiiacfarlani. 

 Ortliis iinpiM'ssa. 

 Prodnctiis liirsutiforine. 

 Productus subaculeatixs. 

 Productus sp. ? 

 Sjjirifera albapineusis. 

 Spii'ifera disiniK^ta. 

 Spirifcra ('iifiebnaiini. 

 Spirit'ei'a i)iri()iieiisis. 

 Spirifeni strigosiis. 

 Spirifera subumbona. 

 Spuifera sp. ? 

 Cyrtina davidsoni. 

 AmbcK^celia luubonata. 



Eetzia radialis. 

 Atrypa reticularis. 

 Ehyuchonflla diiplicata. 

 Rhynchouflla eiiinionsi. 

 Rhyucbonella orcidens. 

 RhjTichoiiella (L) qiiadricostata. 

 Cryptouella circula. 

 Pentaiiienis lotis. 

 Terebiatula sp.? 

 Aviculopectoii catactns. 

 Pteriiiopet'tcii sp. ? 

 Luimlicardinm tVagosum. 

 Cardioinorplia inissourieusis. 

 Nuculites triaiigulus. 

 Paraeyelas peroc<'idens. 

 Conocardiuni sp. ? 

 Platyostoina S]).! 

 Euom])lialus laxus. 

 Euoiupbalus sp. ? 

 Loxoueina sp. ? 

 PlatyscMsma sp. ? 

 Belleroplion iieleus. 



A more characteristic White Pine fauna is preserved in tiie black shale 

 thau has yet been obtained in the corresponding beds at Eureka, and a 

 belt of intercalated limestone in the shale similar to that foiuul east of 

 Sugar Loaf at Eureka l)ears (Hpial evidence of its Devonian age. Here 

 the limestone appears as a lenticular body in the shale, with beds identical 

 in composition both above and below. While there is nuu-h in the group- 

 ing of forms foresliadowing the ('arl)oniferous, the .shales maintain their 

 Devonian aspect by carrjdug certain i-haracteristic species up nearly to the 

 top of the series, and in this respect resemble the black shales found at 

 Hays Canyon west of Newark Mouutaiu. 



>ION XX 13 



