Figs. 
Fig. 
Figs. 
Figs. 
Figs. 
13-15. 
ISH Alt 
» als), ale); 
PLATE XII. 
ARCHINACELLA PATELLIFORMIS (Hall)................. 
2. A dorsal and a lateral view of a nearly complete specimen. 
Jacksonburg, Locality 174 A. 
PROTOWARTEHTAY CAN CHET AMA) (Le) peyeteyersterclctencls) ebeleioneret 
. Dorsal view of a large specimen, showing the transverse 
wrinkles near the aperture. Jacksonburg, Locality 
ITZ. A. 
. Dorsal and lateral views of a smaller, nearly complete 
specimen. Same locality. 
CYRTOLITES ORNATUS var. MINOR U. & S............... 
. Dorsal and lateral views of an incomplete specimen. Jack- 
sonburg, Locality 174 A. 
OXYDISCUS!) SUBACUDUS) Ulrich eamee cence one scence 
. Two views of an incomplete specimen. Near Springdale, 
Locality 156 A. 
BUCANTAUEUING LENRONS) a (Him) ie en rrenensiare ese en ae 
. Lateral view of an average-sized specimen. Jacksonburg, 
Locality 174A.” 
. Dorsal view of a smaller specimen. Same locality. 
2. The surface ornamentation much enlarged. 
ECCYLIOMPHALUS CONLIGUUS! Ulrichwes ss) 1) = lei sae 
Three views of a complete specimen. Jacksonburg, Lo- 
cality 174 A. 
PHRAGMOLITES COMPRESSUS Con..............-.--.---- 
Two views of an incomplete, somewhat distorted specimen. 
Jacksonburg, Locality 174A. 
THERANODAGBINORSAT AG (Lal) meee eit aera errno 
Two views of an incomplete specimen. Jacksonburg, 
Locality 174 A. 
ECCYLIOMPHALUS TRENTONENSIS (Comn.)............... 
21. Two views of an incomplete specimen. Jacksonburg, 
Locality 174A. 
RAPHISTOMAY PERACUMUM UM aciSceleen ae cisternae oieiole 
. Two views of an incomplete specimen. /J/acksonburg, 
Locality 174 A.° 
TLOSPIRAW MTC UE Al) CEA) Ra nea ence aeie aero 
. Two views of a nearly complete specimen. Jacksonburg, 
Locality 174 A. 
174 
185 
178 
176 
184 
180 
