Table 1 Elemental analysis of vascular pleromin (VP) and osteodentin.

From: A unique mineralization mode of hypermineralized pleromin in the tooth plate of Chimaera phantasma contributes to its microhardness

Position

Ca/atm%

P/atm%

Mg/atm%

Mg/(Mg + Ca)

Immature VP-A

4.00 (4)

4.00 (3)

0.18 (1)

0.043

Immature VP-B

8.32 (5)

7.75 (4)

0.39 (1)

0.045

Mature VP

24.6 (1)

22.8 (1)

1.17 (2)

0.045

Osteodentin

3.93 (4)

3.59 (3)

0.06 (1)

0.015

  1. Atomic % of Ca, P, and Mg obtained by EDS analysis and rate of Mg substitution for Ca, Mg/(Mg + Ca) are indicated. The maturity of pleromin increases in the order of immature VP-A< immature VP-B < mature VP. Numbers in parenthesis show 2σ of each data.