ordovician brachiopoda 101 



Table 68 



Statistics of length (1) and maximum anterior divergence (w) of the dental plates in n pedicle valves 

 of Onniella ostentata lepida subsp. nov. from the Aldress Shales (A) and Whittery Shales (B) 



A B 



n 99 



1 mm (var 1) 0-57 (0-034) °*5 2 (0-026) 



w mm (var w) 1-21 (0-081) i-oi (0-079) 



r 0-858 0-877 



a (var a) I-534& (0-0885) 17305 (0-09891) 



Table 69 



Statistics of length (1) of n pedicle valves and length of ventral muscle scar of Onniella ostentata 

 lepida subsp. nov. from the Aldress Shales (A) and Whittery Shales (B) 



A B 



n 9 10 



1 mm mm (var 1) 3-42 (1-017) 3'99 ( I- 774) 



sc mm (var sc) 1-04 (0-109) i"U (0-225) 



r 0-915 0-882 



a (var a) 0-3268 (0-00248) 0-3564 (0-00352) 



Table 70 



Statistics of length (1) of n brachial valves and length of brachiophore bases (lc) of Onniella 



ostentata lepida subsp. nov. from the Aldress Shales (A) and Whittery Shales (B) 



A B 



n 16 21 



lmm (var 1) 3-19 (0-652) 4-13 (0-981) 



lc mm (var lc) o-66 (0-021) 0-69 (0-027) 



r 0681 0-913 



a (var a) 0-1812 (0-00125) 0-1655 (0-00023) 



Table 71 



Statistics of length (1) and maximum lateral extension (w) of the brachiophore bases in n brachial 

 valves of Onniella ostentata lepida subsp. nov. from the Aldress Shales (A) and Whittery Shales (B) 



A B 



n 16 15 



1 mm (var 1) o-66 (0-021) o-66 (0-025) 



w mm (var w) 1-1(0-075) 1-19(0-146) 



r 0-803 0-967 



log e l (var log e l) —0-4405(0-048) —0-4437(0-0566) 

 log e w (var log e w) 0-0654 (°"°597) 0-1279 (0-0977) 



r e o-8n 0-972 



a (var a) 1-1157(0-03045) 1-3139(0-00719) 



