34 
IOWA ACADEMY OP SCIENCES. 
TABLE SHOWING VERTICAL RANGE OP POSSILS— Continued. 
a 
o 
+3 
a 
o 
+3 
a 
SPECIES. 
a 
o 
tn 
c3 
a 
M 
2 
fl 
o 
-!.=> 
a 
sS 
o3 
a 
a 
‘3 
"a 
a 
aj 
3 
o3 
O 
pq 
<D 
S3 
Fh 
<D 
ft 
w 
2 
w 
y 
-5 
w 
43 
o 
o 
f-q 
p 
1 
3 
3 
4 
5 
6 
7 
8 
9 
10 
111 
12 
13 
14 
:15 
. 16 
17 
18 
; 19 
’20 
Eumetria prima? White 
X 
X 
Leiorhynchus? sp? 
X 
Lepta^na sericea, Sowerby 
X 
X 
Lingula sp? 
X 
Merlstella sp? 
X 
JNucleospira barrisi? White 
X 
X 
X 
X 
Platystrophia" acutilirata (Conrad). . . 
Rhipidomella missouriensis(Swallow) 
Orth is elegantula? Dal man 
X 
X 
X 
X 
X 
X 
Orthis fiaheilulum, Sowerov 
X 
X 
X 
Orthis su hquadrata, Hali., 
X 
X 
X 
X 
X 
X 
X 
X 
Orthis restudinaria. Dalman 
X 
X 
X 
X 
X 
X 
Orthis hnrlingtonensis. Hall 
X 
X 
X 
X 
X 
Productella pyxidata (Hall) 
X 
X 
X 
X 
X 
X 
Productella shumardiana, Hall 
X 
1 Sp? 
X 
Productus arcuatus. Hall 
X 
X 
Productus cora? d’ Orbigmy 
X 
X 
X 
X 
Productus burlingtonensis, Hall 
X 
X 
X 
X 
Productus punctatus, Martin 
X 
X 
Productus semireticulatus, Martin. . , . 
X 
X 
X 
Proouctus viminalis, White 
X 
X 
Productus sp? 
X 
X 
X 
Prodiv^t’i^ sp“? 
X 
X 
X 
Productus sp? 
X 
X 
Prodimth s >^p*^ 
X 
X 
Retzia? sp*^ 
X 
KotzlBj? sp? - 
X 
X 
X 
Rhynchonella boonensis, Swallow 
X 
X 
X 
Rbynchonella capax, Conrad 
X 
Rhynchonella missouriensiSjShumard 
Rhynchonella sp? 
X 
X 
X 
X 
X 
litiyiich^Ti ^ sp? 
X 
X 
liliy 1 sp? . * . 
X 
X 
Rhynchonella white!? Winchell 
X 
KhyDCtioii^l 1 *'^1 sp? 
X 
Spirifera forbesi, Norwood & Pratten 
fepirifera hirtus White «& Whitfield. . . 
X 
X 
X 
X 
X 
Spirifera imbrex, Hall 
X 
X 
Spirifera .Ha, 11 
X 
X 
Spirifera liTiP'at'^iORs, Swa.llow 
X 
X 
X 
Spirifera marionensis, Shumard 
X 
X 
X 
X 
SpirifcrB. 1 
X 
S pirif era peculiaris? Shumard 
X 
X 
X 
Spirifera plena, Hall 
X 
i^pirifcrHj 
X 
spirifera s<^lid<^rr>stris, White 
X 
X 
Spirifera striatiformis, Meek 
X 
X 
X 
X 
Spirifera s^ihretunriJitH., Ha.ll 
X 
Spirifera grimesi. Hall 
X 
X 
X 
X 
X 
X 
X 
X 
X 
Spirifera tern er^i.T'i a? Miller 
X 
X 
Spiri/opci no n ^ T?.nwlfty 
X 
X 
Spirif^PH sp? 
X 
X 
Spirifer?!. sp? 
X 
X 
Spiriferina hipt^enta. winehell 
X 
X 
Spiriferina clarksvillensis, Winchell. 
Spiriferina a Pewley 
X 
Y 
Y 
X 
xj . . 
X 
Spiriferina subtexta, White 
X 
