575 



Pal^. 



Palseanatina typa. Hall. Pal. N. Y. Vol. 5, part 1, plate 

 Vin^^^_.__. 07. _,«,,«.«._^2.^'79, fig. 27, left valve of 



^^ '^^ ^Hii^ i^r/ -;^^^ ordinary form; 28, right 



^g^^^^P^ valve of a depressed speci- 

 V / . t.?«^x ivc . men. Chemung, — Note 



In MS. corrections of a copy of Prelim. Notice Lamell. 1870, 

 reed. Feb., 1889, Prof. Hall compares this with Cypricardites 

 contractus^ on page 178. — VIII g. 

 Paloearca saffordL See Cypricardites safPordi. VL 

 Palcearca ventricosa (now Cypricardites ventricosus.) 



Hall, 

 Pal. N. 

 Y. Vol. 

 3, p. 271, 

 1, 2, 3, 

 Trenton 



,^ ^ in Ten- 



waiun. c.y. \ ^ ^IMUM^ nessee. 



i^ '2 ' '■'!.*■ — lie. 



Palseaspis americana. Claypole, Preface to Report F2. 



Geol. Survey of 

 Penn., 1888, page 

 xii. (Q.J. London 

 Geol. Soc. Vol. 

 XLI,p.62.)Perry 

 Co., Pennsylva- 

 nia. Nqw Bloom- 

 Held sandstone 



^v I /•« ^^P ^^ Salina, 



ALLp.62 Yc. 



Palaeaspis bitruncata. Claypole. F2, preface page xii 



V.c 



^ Shield of Palaeaspis americatra. ('KatrsK^e.) 



<.^ 



Shield of Palaeaspis bitruncata. (I^at. size.) 



Q. J. G. S. Lon- 

 don, XLI. page 

 65. — JVew Bloom- 

 Held sandstone at 

 the top of the 

 Salina formation 

 in Perry [Co., Pa. 

 Vc. 



