42 JURASSIC RHYNCHONELLIDS 
Makridin (1964) figured several species and subspecies of Rhynchonella and a table 
giving the stratigraphical ranges of these is given below (text-fig. 17) ; the strati- 
xhsaj}dossiw “y 
S3lIS3dS HSILIYS 
DIIpUD}js0d “Yy 
SIPIQOIIDAQNS “Yy 
sisua/Nodosos “Yy 
DIDI4IS -O4jUaIU0I yy 
SISUBPABITOIOA “YY 
DIUOJJe /sAL/JINOI 
(401) INOS (4O1]}INOI “yy 
S3lD3dS NVISSNY 
IMSAOUDLIN frat} Ino Yy 
pseudoscythyca 
= AO UUREBANE 
Seow NE Rae s 3 
=—RNNTANT = 
rosonovi 
fulgens 
nodiger 
ic allel I al alia 
SS ee 0 es (es 
Fic. 17. The stratigraphical ranges of the Russian and British species of Rhynchonella s.s. 
Details of the Russian species are taken from Makridin (1964). 
