JONESELLA [Leperditia crepidiformis Ulrich 1879,p.10,pl.7, 
f.3,3a] Ulrich 1890,p.121 [Beyrichiidae by 
Ulrich; Primitiidae by Bassler and Kellett 1934, 
pe 343; Drepanellidae-Drepanellinae by Schmidt 
1941,pe50] Ordovician, Kentucky, Ohio. 
JONESIA [Cythere simplex Norman 1865,p.e17,pl.5,f.l-4] Brady 
1866 ,p.362 [Cytheridae-Bythocytherinae] Recent, 
Shetlands. 
JONESINA [Beyrichia fastigiata Jones and Kirkby 1867, 
pe220] Ulrich and Bassler 1908,p.324 [Beyrichiidae-- 
Kloedenellinae by U&B; Kloedenellidae by Bassler 
and Kellett 1934,p.30; Kloedenellidae-Kloedenellinae 
by Henningsmoen 1953,pe2h2-270] Carboniferous, 
Scotland. 
JONESITES [Primitia excavata Jones and Holl 1869, p.222, 
pl.15,f.10a-c] Coryell 1930,p.294-295, new name 
for Placentula Jones and Holl. [Primitiidae by 
Bassler & Kellett 1934,pe17-19; ?Drepanellidae-- 
Ulrichiinae by Schmidt 1941,p.51; Drepanellidae-- 
?Bolliinae by Henningsmoen 1953,p.268] Silurian, 
England. 
JUGOSAE Jones 1855a,p.85, a Group of species of the genus 
Beyrichia M'Coy. 
100 
