From: Crinoids from the Middle Jurassic (Bajocian–Lower Callovian) of Ardèche, France
Type of ossicle | Number | Remarks |
---|---|---|
Columnals | 42 | Branched: 19 |
First primibrachials | 1,044 | |
Second (axillary) primibrachials | 1,043 | With pit: 3 |
Secundibrachials with two muscular facets | 13,240 | With pit: 7 |
Secundibrachials with one synostosial facet | 118 | With pinnule socket: 32 |