268 
PALEONTOLOGY OF THE EUREKA DISTRICT. 
SYSTEMATIC LIST OF FOSSILS OF EACH GEOLOGIC FORMATION. 
CAMBRIAN. 
PROSPECT MOUNTAIN GROUP. 
(The double multiple (x x) denotes that the species passes to the group above.] 
Genera and species. s 
E 
=] 
PORIFERA. 
Protospongia fenestrata Salter ..-..... x 
JiR) hoods tooo Saeasess Sore cro 
BRACHIOPODA. 
LU HES th 53h oe sa sor ceeocaossaceas x 
Lingulepis Mera H. &W.......-...--- xX 
? minuta H. &W ..-.---.-.- xx 
Lingula ? manticula White .........-.. xX 
Obolella discoidea H. & W .--..--..--- xX 
Gib Hesshot resseniie -poesccncne x 
Acrothele ? dichotoma, n. sp. ?.---.----- x 
Acrotreta gemma Billings.....-..-.-.. xX 
Kutorgina Prospectensis, n. sp---.----- Xx 
sculptilis Meek ........---- x 
Whitfieldi, n. sp -....-..---- oe 
Leptena Melita H. & W....-..-.-..-.- DOO 
Orthis Eurekensis, n. sp. --------------- Xe 
Rie t) eencechecheebeceanonsecsdenoy x 
PTEROPODA. 
Stenotheca elongata, n. sp.--..--.. Jeet < 
Hyolithes primordialis Hall (sp.) .....- x 
Scenella ? conula,n. sp.-..-------------- 
PECILOPODA. 
Agnostus bidens Meek ...........---.. 
communis H. & W. 
Neon H. & W...... 
prolongus H. & W . 
Richmondensis, n. sp 
seclusus, I. sp.----- 
Olenellus Gilberti Meek 
Howelli Meek. 
Iddingsi, n. sp 
Dicellocephalus ? angustifrons, n. sp... 
bilobatus H. & W .. 
? expansus, n.sp . 
flabellifer H. & WW 
Tole, n. sp. 
Marica, n. s) - 
nasutus, 0. sp. 
Osceola Hall 
? quadriceps H. & W.. 
Richmondensis, n. sp-. 
White Pine. 
Remarks. 
Type from the Cambrian of Wales.....-...-........---.-- 
Fragment........... SERRE DAAC OUSOmOOCacKOTEeSoE ES Sceoee 
Types from Eureka and White Pine Districts, Nevada -.. 
Type from the Eureka District 
Type from Schell Creek Range, Nevada .-....-..........- 
Type from Eureka District...-...-.--...----------------- 
Like O. pretiosa Billings........-..- eoscaskenee) fone sacle 
Type from Pioche, Nevada. . 
Type from Eureka District 
Geol. Expl. Fortieth Parallel, vol. iv, p. 227. 
Type from the Potsdam sandstone of Wisconsin.-.-.....-.. 
Type from Ute Peak, Wahsatch Range, Utah..........-.- 
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