TABLE 5. Area spanned by eight overlain lateral suture elements for C. springeri. Different sets of eight right sutures, selected randomly from a pool of 12, produce different spanned areas, but the area spanned by right sutures is always greater than that spanned by left sutures. The 95% confidence interval for the rights area is 43.13 to 53.37 (tc=2.776, df=4, ci=5.12); the left area of 40.08 falls below this interval, indicating that left sutures span significantly less area than right sutures.

 

Polygon

Area

 

Left

40.08

 

Right 1

41.81

 

Right 2

47.2

 

Right 3

48.79

 

Right 4

51.01

 

Right 5

52.43

 

Mean Right

48.25

 

Standard Deviation Right

4.12