I \ i: I . i: .. i OOHTK NTS 



MM 



Genus PROTOOARMA ... 97 



I'rutix-anliii Sliumurili . . 9S 



Family ANATIMP.E .... '.'-' 



Qeiius Mv.\i iri.-i .... 99 



Myarilr* in . . Itid 



sulH'Ui|>ticus . . lul 



Genus TIIUACIA . . . .lul 



Thrucia ? MiMirvis . . 102 



? arcuutu , .102 



Genus PHOLADO.MYA . . .102 



rholiulotnyu humilis . . 104 



"i>.\ .... 105 



Slllx-lu-^ I'l I.M'lNIFERA . . . 105 



Order F.NOPERCULATA . . .105 



Suborder I.iMxoriiiiA . . 105 



Family I.iMS.sm.*: . . . 105 



Subfamily LIMN^IN^B . . 105 



Subfamily I'IIYSIN^E . . 105 



Subfamily PLANORBIN.S . 105 



Genus PLANORBIS . .106 



Planorbis veterans . 107 



Subclass PROSOBRANCHIATA . .108 



Order RIPHIDOGLOSSATA . . . 108 



Suborder PODOPTHALMA . . 108 



Family NKRITID/E . . . 108 



Genus NERITELLA . .108 



Neritella nebraacensis . 109 



Order CYCIX)BRASCHIATA . .110 



? Family DENTALIID^ . .110 



Geuus DENTALIUM . . .111 



Dentalium subquadratum 111 



PAOB 



Order CTENOBRANCIIIATA . .111 



Suborder KOSTRIFEBA . . .111 



Family VALVATIB^ . .111 



Genns VALVATA . . . 112 



Subgcnus TROPIDINA . 113 



Valvata? acabrida 113 



Family VIVIPARIH.K . .113 



Genus Vi vi PARUS . .114 



Yiviparus Gilli . .115 



Genus LIOPLACODES . .115 



Lioplacodes Teternus . 116 



Class CEPHALOPODA . . . .116 



.Order TETRABRANCHIATA . . .116 



Family AMMONITID^E . . .116 



Trigonelletes . . .118 



Genus AMMONITES . . .121 



Ammonites cordiformis . 122 



Ammonites Henry i . .123 



Order DIBRANCHIATA . . . 124 



Suborder DECAPODA . . .124 



Family BELEMNITID.& . . . 124 



Genus BELEMMTES . ... 124 



Belemnites densus . .126 



ARTICULATA 127 



Class ANNULATA 127 



Order TUBICOLA . . . .127 



Family SERPULID.S . . .127 



Genns SERPULA . . . .127 



Scrpula ? . .128 



