| Fasciculus vesanus Temporal range: Middle Cambrian |
|
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Ctenophora |
| Genus: | Fasciculus Simonetta & Delle Cave, 1978 |
| Species: | F. vesanus |
| Binomial name | |
| Fasciculus vesanus Simonetta & Delle Cave, 1978 |
|
Fasciculus vesanus is an extinct species of stem-group ctenophore, known from the Canadian Burgess Shale of British Columbia. It is dated to 515 to 510 million years ago and belongs to middle Cambrian strata.[1]
The species is remarkable for its two sets of long and short comb rows, not seen in similar form elsewhere in the fossil record or among modern species.