From: Crinoids from the Middle Jurassic (Bajocian–Lower Callovian) of Ardèche, France
Type of ossicle | Pouza 1 | Pouza 1 observed/expected | Pouza 2 | Pouza 2 observed/expected | Pouza 3 | Pouza 3 observed/expected | Pouza 1–3 (total) | Pouza 1–3 observed/expected | Total including small fraction (Appendix 2) | Pouza total observed/expected |
---|---|---|---|---|---|---|---|---|---|---|
Cups and radialsa | 1,039 | 1.0 | 909 | 1.0 | 495 | 1.0 | 2,443 | 1.0 | 2,443 | 1.0 |
Topmost columnals | 1,092 | 1.1 | 511 | 0.6 | 211 | 0.4 | 1,814 | 0.7 | 1,814 | 0.7 |
Columnals | 3,882 | n.a. | 1,971 | n.a. | 2,095 | n.a. | 7,948 | n.a. | 7,990 | n.a. |
Attachment discs | 428 | 0.4 | 313 | 0.3 | 328 | 0.7 | 1,069 | 0.4 | 1,069 | 0.4 |
First primibrachials | 2,039 | 0.4 | 760 | 0.2 | 322 | 0.1 | 3,121 | 0.3 | 4,165 | 0.3 |
Second primibrachials | 6,975 | 1.3 | 2,551 | 0.6 | 1,352 | 0.5 | 10,878 | 0.9 | 11,921 | 1.0 |
Secundibrachials | 28,674 | n.a. | 9,065 | n.a. | 7,647 | n.a. | 45,386 | n.a. | 58,744 | n.a. |
Total | 44,129 | 16,080 | 12,450 | 72,659 | 88,146 |