Table 7
Weight percent (WT%) for three major elements* in cross section cuts of the anterior hook and the posterior hook of Neoechinorhynchus ponticus n. sp.
Anterior hook |
Posterior hook |
|||||
---|---|---|---|---|---|---|
Base (A) |
Entry (B) |
Tip (C) |
Base (A) |
Entry (B) |
Tip (C) |
|
WT% | WT% | WT% | WT% | WT% | WT% | |
Phosphorus (P) | 18.18 | 4.15 | 13.12 ** | 17.47 | 13.36 | 1.77 |
Calcium (Ca) | 47.61 | 65.20 | 26.39 | 4.48 | 39.65 | 36.42 |
Sulfur (S) | 2.99 | 1.0 | 6.22 | 36.42 | 3.60 | 4.48 |
Pd (palladium) and Au (gold) were used to count the specimens. Ga (gallium) was used for the cross cut of the hooks; other elements (C, O, N) are common in organic matter.
See Figure 39 for EDXA spectrum of bolded WT% of tip of anterior hook of N. ponticus from the Black Sea. Inset: anterior hooks. Note that sulfur is much higher (36.42%) at the base of the posterior hook, calcium is highest (65.20%) at the entry of the anterior hook, and phosphorous is slightly higher (18.18%) at the base of the anterior hook.
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