767 



Prod. 



Productus, undetermined species. From Chemung varie- 

 gated shale, Tioga Co.. Pa. (O, spec. 3611.) F///. — From 

 Chemung- CattsMll sandy shale, Perry Co. (spec. 3615) VIII- 

 /X — In Randall's CattsMll- Pocono subdivisions F. G. H, War- 

 ren Co. (IIII, 305) IX- X, — Abundant in Panama conglome- 

 rate {Third Oil sand, III70) F7//.^— With Spirifera, Rhyn- 

 chonella^ etc., in Oil group shaly sandstone, east of Bradford 

 bridge in McKean Co. (0, spec. 3403.) IX,— In Bedford shale, 

 Warren Co. (spec. 3342, 3346) IX.— In Pt>^<9^^6> strata, Venango 

 Co. (spec. 2904, 2907, 2921) and Warren Co. (spec. 2957) X— 

 In Crawford Co. badly preserved in Meadville lower shale, 

 Sharpsville upper sandstone^ in all its outcrops, poorly pre- 

 served ; abundant in Meadvide upper limestone^ mostly new 

 or undescrihed species, in the main of Kinderhook limestone 

 fades (White's Q4,pp. 83, 85, 86, 126.) X— In Huntingdon Co.? 

 very abundant in Shoup^s run shales, in Pocono rocks, 600' 

 above top of Cattskill, 800' to 830' beneath base of Mauch 

 Chunk, Saxton section (T3, pp. 175, 299), X— In Crawford Co., 

 rare and badly preserved in Chenango upper {Mauch Chunk) 

 shales (Ql, 78,) XL — Broken and undeterminable fragments 

 in the Suh- Clean conglomerate, (Q4, p. 79) top of X — Also 

 often found in the Drift of N. W. Pa. See spec. 3045, 3048. — 

 Finally a Productus of great size, as large as a man's fist, oc- 

 curs in the Green Crinoidal limestone of the Pittsburgh harren 



measures, just S. of New garden school 

 in 6 •====^5^.. ^^^ house, Raccoon township, South Beaver Co., 

 . ^_.^.^ Pa- (K' 344.)— X/F 



^k'fM^GX^^ ^^o^^^s ataricus, Billings. Geology of 

 , ^Mwi^^f\ C'anada, 1863, page 219, fig. 230, Hudson 

 C eol^^-^c:-^"' " Eiver slate {Loraine shale) form,, Illh. 



Proetus corycoeus. {Asaphus corycoeus,) Hall, Geology 



of the Fourth New York Dis- 

 trict, 1843, plate fig. [11, 3] 

 from the Niagara formation, 

 VIII — Conrad, Jour. Acad. 

 Nat. Sci. Philada. Vol. VIII, 

 1824, page 277, plate 16, fig. 

 15.— F 5. 



