Table 5 Remains of Cyrtocrinus praenutans n. sp. from the three beds at La Pouza sampled by A. S. Gale
From: Crinoids from the Middle Jurassic (Bajocian–Lower Callovian) of Ardèche, France
Type of ossicle | Number | Remarks |
|---|---|---|
La Pouza 1 | ||
Intact cups | 676 | With pit: 17; verrucose: 1; with top columnal: 10 |
Single radials | 952 | (=190 cups); with pit: 6, verrucose: 4 |
Radials of 2 | 325 | (=130 cups); with pit: 18, verrucose: 1 |
Radials of 3 | 71 | (=43 cups); with pit: 1 |
Topmost columnals | 1,092 | With pit: 17 |
Columnals | 3,882 | With pit: 13 |
Attachment discs | 428 | With pit: 10, with two or three pits:2 |
First primibrachials | 2,039 | With pit: 20, verrucose: 85 (4 %) |
Second (axillary) primibrachials | 6,975 | With pit: 31, verrucose: 904 (13 %), 5 fused with first primibrachial (with pit extending on both ossicles: 3) |
Secundibrachials (smooth) | 19,289 | With pit: 32 |
Secundibrachials (verrucose) | 9,211 | |
Secundibrachials with proximal synostosis and distal muscular facet (with pinnule socket) | 112 | Verrucose: 48 |
Secundibrachials (thin) with synostosis, no pinnule socket | 62 | (all verrucose) |
La Pouza 2 | ||
Intact cups | 697 | With pit: 11, verrucose: 1, with top columnal: 32 |
Single radials | 532 | (=106 cups); with pit: 6, verrucose: 2 |
Radials of 2 | 167 | (=67 cups); with pit: 6, verrucose: 2 (smallest:width = 1.8 mm, height = 1.3 mm) |
Radials of 3 | 63 | (=38 cups); with pit: 2 |
Radials of 4 | 1 | |
Topmost columnals | 511 | With pit: 3 |
Columnals | 1,971 | With pit: 5 |
Attachment discs | 313 | |
First primibrachials | 760 | With pit: 3, verrucose: 21, 1 fused IBr1+2 with pit |
Second (axillary) primibrachials | 2,551 | With pit: 11 |
Secundibrachials | 8,997 | With pit: 6 |
Secundibrachials with proximal synostosis and distal muscular facet (with pinnule socket) | 51 | With pit: 1 |
Secundibrachials (thin) with synostosis, no pinnule socket | 17 | |
La Pouza 3 | ||
Intact cups | 346 | With pit: 16, verrucose: 1 |
Single radials | 467 | (=93 cups); with pit: 3; verrucose: 7 |
Radials of 2 | 98 | (=39 cups); with pit: 4; verrucose: 2 |
Radials of 3 | 29 | (=17 cups) |
Topmost columnals | 211 | With pit: 2 |
Columnals | 2,095 | With pit: 12 |
Attachment discs | 328 | |
First primibrachials | 322 | With pit: 14, verrucose: 17 |
Second (axillary) primibrachials | 1,352 | With pit: 25, fused with first primibrachial: 1 (with pit) |
Secundibrachials | 7,647 | With pit: 16; synostosial: 19 (4 with pinnule socket, one of them with pit) |