,-A-rzj;: : : a 



Can. doe. Mat. Hist., voL 3, Mapn 

 Gr. lEty. prefer matte.] 



in 1871, in Proe. Acad. Xat SeL 

 mperta. Hall, 1879, PaL X. Y., toL 5, 



pt 2, pL 29, Up. Held. Gr. ISig- 



Proe. Acad. Xat Sou, 

 Kasfcastaa Gr. TEtv. proper name.] 

 nOifera, White, 1880, 12th Sep. U. S- 

 Geo. Sur. Terr.. Up. Coal Meas. ISig. 



'•-•.'. •-.-.:. . _ 



Whiineld.lS83.Dese.Xew Spec. 



Foss. fhm Ohio, Coal Meas. [Ety. 



proper name.] 



neaae. WhitneJd. 1882, Dese. Xe w Spec. 



Fobs, from Ohio, KaskaskiaGr. [sSg.1 



Rep., Cakaferous Gr. ISig. the 

 | 



PutTTCKKJLS natieoides, Etheridge, 1838, 

 Qaar. Joor. Geo. Sor., voL 34, Up. SiL 

 ISig. like a Jtofaa.] 

 paialium. White * Whitfield, 1S62, Proc. 

 Bost Soe. Xat Hist., voL 8, Kinder- 

 hook Gr. JSig. that grows by tit* 



Ohio, Up. Held. Gr. 

 I*ig. a kind of fish tooth.] 

 suhsmuo&um, Worthen, 1882, BulL Xo. 

 1, HL St. Mas. Xat Hist., Low. HeM- 

 Gr. ISig. somewhat sinuous.] Pro- 

 posed instead of P. sobondatam, M 

 AW. 

 tribulosam, White, 1880, 12th Be] 



•-- . - : I-;-:.: :.- _: :. •'.-,r. rvj 

 thorny.] 

 :':,:•:-■: :. _•■ ■•■- -• . v. •• - .>.»_. 



BolL Xo. 1, HL St- Mus. Xat- Hist., 

 Hayden's U. S. Geo. Sur. Terr., Coal Meas. Proposed instead of P. 



CakiferousGr. ISig. a dwarf.] tanudum, M. & W., which 



OaanrracHxrs. S. A. 



Cm. Sac Xat Hist. voL 2. lEty. I Puxkoxotcs, HaU, 18S9, PaL X. Y 



5. pt 2. lEty. jrieuru, ' 

 a track.] Supposed to he me trail of 

 aGaateropod. 

 monfliformis, S. A. MiBer. 1880, Jour. 

 Cm. Soe. Xat- Hist., vol 2, Utka 

 State Gr. ISig fike a neekbee.] 

 PiLEioui irringi, Whitfield, 1878, Ann. 

 Sep. Geo. Sur. Wk, Potsdam Gr. 



Pxi-BOTiaocHT-s, HaO, 1*79. PaL X. 

 voL 5, pt 2 JEty. 



■eft 

 Paimia 



E«. jw^//*, a dfch] 

 ImeffoC, White. 189, 11th Bep. GeoL A 

 iw Gr., re- 



Puran m uin 



m. y., tol 



decewL 

 HaO, 1879, PaL 

 pt 2, Up. Held. Gr. 



>._■ :. dpmtj 



~ 1879, PaL X. Y., 

 toL 5. pt 2. Up- HekL Gr. 



9 Geo. Sur. Terr. 



Difornus. Worthen, 1882. BuU. Xo. 1. 

 HL St Mas. Xat Hist-, Coal Meas. 



I 

 [of P. 



Pampas omaiiet, P. «MH»owi**, P. ram»- 

 fiatc. and P. ajirafia. Castemau, 1843, 

 Syst SB. Xotreeognimd. 

 PULTTCsxas hrfofcre, White A Whitfield, 

 1882, Proe. Bost Soe. Xat. Hist. roL 

 8, Kinderhook Gr. gSfe. 



Meek, 187L Proc Acad. Xat 



■. :•:-:.-. z- . : • ;.-: ■.:.:..-.. 



itys var. temrispira. HaB. 1879, PaL X. 

 Y.. toL 5, pt- 2. Ham. Gr. [Sag. 



l: ■„■: . ;;. -..: • :,:: I-.-j Ii- : :■-:■: : 



rta. Meek and Worthen, *«•, Proc. 

 Acad. Xat SeL, Keokuk Gr. ISig. 



