TABLE 1. Linear absorption coefficient (LAC) in the tomographic images of the Phyllopachyceras ezoensis. The numbers (1)-(10) correspond to plots in Figure 4.

  mean minimum maximum standard deviation
air surronding the specimen (1) 0.000 -0.001 0.003 0.0015
phragmocone vacancy (2) 0.046 0.027 0.068 0.0123
septa (3) 0.251 0.199 0.343 0.0467
lower jaw (dark-colored part) (4) 0.337 0.317 0.351 0.0103
upper jaw (dark-colored part) (5) 0.356 0.333 0.384 0.0149
sediments in body chamber (6) 0.478 0.473 0.483 0.0040
carbonate crystal in phragmocone (7) 0.526 0.516 0.538 0.0067
siphuncle (8) 0.625 0.610 0.645 0.0136
upper jaw (light-colored part) (9) 0.635 0.581 0.708 0.0525
lower jaw (light-colored part) (10) 0.667 0.633 0.706 0.0262